{"id":897,"date":"2020-08-06T14:43:21","date_gmt":"2020-08-06T18:43:21","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/?post_type=back-matter&#038;p=897"},"modified":"2020-08-06T17:50:39","modified_gmt":"2020-08-06T21:50:39","slug":"offline-copies-of-chapter-quizzes","status":"publish","type":"back-matter","link":"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/back-matter\/offline-copies-of-chapter-quizzes\/","title":{"raw":"Offline Copies of Chapter Quizzes","rendered":"Offline Copies of Chapter Quizzes"},"content":{"raw":"<h1>Terms and Definitions - Self Test 1<\/h1>\r\n<h2>Questions<\/h2>\r\n<img class=\"wp-image-899 size-large aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-1024x346.png\" alt=\"\" width=\"1024\" height=\"346\" \/>\r\n\r\nUsing the above diagram, answer questions 1 to 5:\r\n<ol>\r\n \t<li>Which letter identifies the component that normally provides overcurrent protection for the motor branch circuit?<\/li>\r\n \t<li>Which letter identifies the component that normally provides overload protection for the motor branch circuit?<\/li>\r\n \t<li>When energized by the control circuit, which letter identifies the component that provides normal starting and stopping actions?<\/li>\r\n \t<li>Between which two letters is the control circuit power normally taken from?<\/li>\r\n \t<li>Which letter(s) identify devices that must be horsepower rated?<\/li>\r\n<\/ol>\r\n&nbsp;\r\n<ol start=\"6\">\r\n \t<li>A melting alloy type of thermal overload is called a:\r\n<ol type=\"A\">\r\n \t<li>Solder-pot relay<\/li>\r\n \t<li>Dash-pot relay<\/li>\r\n \t<li>Thermal relay<\/li>\r\n \t<li>Bimetallic relay<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>The part of a manual AC motor starter which senses motor overload current is the:\r\n<ol type=\"A\">\r\n \t<li>High-limit switch<\/li>\r\n \t<li>Solder-pot assembly<\/li>\r\n \t<li>Overload contact<\/li>\r\n \t<li>Heater element<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>If automatic starting after a power failure represents a safety hazard for a motor drive, it should be equipped with:\r\n<ol type=\"A\">\r\n \t<li>Low voltage release<\/li>\r\n \t<li>A flashing red light<\/li>\r\n \t<li>Low-voltage protection<\/li>\r\n \t<li>A warning sign<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>An overload relay that uses a strip of dissimilar metals is called a _______ relay\r\n<ol type=\"A\">\r\n \t<li>Melting alloy<\/li>\r\n \t<li>Thermistor<\/li>\r\n \t<li>Solder pot<\/li>\r\n \t<li>Bimetallic<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>Referring to the drawing, assuming that fuse C is blown, which pair of points will result in a reading of zero volts when the voltmeter is connected across them?<img class=\"aligncenter wp-image-902 size-medium\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-226x300.png\" alt=\"\" width=\"226\" height=\"300\" \/><\/li>\r\n \t<li>To connect a motor solely for jogging operation, the control circuit will:\r\n<ol type=\"A\">\r\n \t<li>Use holding contacts<\/li>\r\n \t<li>Connect holding contacts in series with the start button<\/li>\r\n \t<li>Connect holding contacts in parallel with the start button<\/li>\r\n \t<li>Not use holding contacts<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>Timed relays are the best method to provide plugging for a motor. True or false?<\/li>\r\n \t<li>The electrical interlocks in a reversing magnetic starter are:\r\n<ol type=\"A\">\r\n \t<li>Controlled by the timing relays necessary for circuit operation<\/li>\r\n \t<li>In parallel with the forward and reverse pushbuttons<\/li>\r\n \t<li>Normally closed contacts<\/li>\r\n \t<li>Normally open contacts<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>Overload protection for motors is achieved by connecting:\r\n<ol type=\"A\">\r\n \t<li>Thermal sensing elements in series with the motor<\/li>\r\n \t<li>A reset relay in series with the motor<\/li>\r\n \t<li>Cartridge fuses in series with the motor<\/li>\r\n \t<li>A set of N.C contacts in series with the motor<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>With a three-wire control circuit, when power is restored after a low voltage situation:\r\n<ol type=\"A\">\r\n \t<li>An operator must restart the motor<\/li>\r\n \t<li>The motor will polyphase<\/li>\r\n \t<li>The motor will automatically restart<\/li>\r\n \t<li>The motor will automatically restart after a time delay<\/li>\r\n<\/ol>\r\n<\/li>\r\n<\/ol>\r\n<h2>Answers<\/h2>\r\n<ol class=\"twocolumn\">\r\n \t<li>B<\/li>\r\n \t<li>D<\/li>\r\n \t<li>C<\/li>\r\n \t<li>B and C<\/li>\r\n \t<li>A and C<\/li>\r\n \t<li><span class=\"h5p-alternative-inner\">A<\/span><\/li>\r\n \t<li>D<\/li>\r\n \t<li>C<\/li>\r\n \t<li>A<\/li>\r\n \t<li>3 and 6<\/li>\r\n \t<li>D<\/li>\r\n \t<li>False<\/li>\r\n \t<li>C<\/li>\r\n \t<li>A<\/li>\r\n \t<li>A<\/li>\r\n<\/ol>\r\n<h1>Pilot Devices - Self Test 2<\/h1>\r\n<h2>Questions<\/h2>\r\n<ol>\r\n \t<li>In a motor control circuit with multiple start\/start pushbutton stations, the stop buttons would be connected in ______ and the start buttons would be connected in _______.<\/li>\r\n \t<li>To troubleshoot an electrical control circuit, the best drawing to be used would be:\r\n<ol type=\"A\">\r\n \t<li>Schematic<\/li>\r\n \t<li>Wiring<\/li>\r\n \t<li>Pictorial<\/li>\r\n \t<li>RIser<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>A double contact pushbutton is illustrated below. When connected as a start button in the control circuit of a magnetic starter, which pair of terminals are normally utilized?<img class=\"wp-image-905 size-medium aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-300x248.png\" alt=\"\" width=\"300\" height=\"248\" \/><\/li>\r\n \t<li>Timed relays are the best method to provide plugging for a motor. True or false?<\/li>\r\n<\/ol>\r\n<h2>Answers<\/h2>\r\n<ol>\r\n \t<li>Series, parallel<\/li>\r\n \t<li>A<\/li>\r\n \t<li>3 and 4<\/li>\r\n \t<li>False<\/li>\r\n<\/ol>\r\n<h1>Motor Starters and Contactors - Self Test 3<\/h1>\r\n<h2>Questions<\/h2>\r\n<ol>\r\n \t<li>The minimum number of control circuit conductors to a stop\/forward\/reverse pushbutton station that provides low-voltage protection for a three-phase reversible motor is:\r\n<ol type=\"A\">\r\n \t<li>2 wires<\/li>\r\n \t<li>3 wires<\/li>\r\n \t<li>4 wires<\/li>\r\n \t<li>6 wires<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>Which of the following type of motor starter does not normally provide running protection for the motor?\r\n<ol type=\"A\">\r\n \t<li>A magnetic starter<\/li>\r\n \t<li>A pushbutton starter<\/li>\r\n \t<li>A toggle-switch starter<\/li>\r\n \t<li>A drum-switch controller<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>If the circuit in the drawing was operating normally and an overload occurred, then:<img class=\"wp-image-907 aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147.png\" alt=\"\" width=\"600\" height=\"318\" \/>\r\n<ol type=\"A\">\r\n \t<li>Both lights would come on<\/li>\r\n \t<li>The green light would come on, and the red light would go out<\/li>\r\n \t<li>Both lights would go out<\/li>\r\n \t<li>The red light would come on, and the green light would go out<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>With a three-wire control circuit, when power is restored after a low voltage situation:\r\n<ol type=\"A\">\r\n \t<li>The motor will automatically restart after a time delay<\/li>\r\n \t<li>The motor will automatically restart<\/li>\r\n \t<li>An operator must restart the motor<\/li>\r\n \t<li>The motor will polyphase<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>A melting alloy type of thermal overload is called a:\r\n<ol type=\"A\">\r\n \t<li>Solder-pot relay<\/li>\r\n \t<li>Thermal relay<\/li>\r\n \t<li>Bimetallic relay<\/li>\r\n \t<li>Dash-pot relay<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>A starter rated at 10HP, 600 V, if used on a 120V motor would most likely be rated at:\r\n<ol type=\"A\">\r\n \t<li>2 HP<\/li>\r\n \t<li>3 HP<\/li>\r\n \t<li>10 HP<\/li>\r\n \t<li>2.5 HP<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>A N.C.T.C contact will be open immediately after the coil is de-energized. True or false?<\/li>\r\n \t<li>An overload relay that uses a strip of dissimilar metals is called a _______ relay\r\n<ol type=\"A\">\r\n \t<li>Thermistor<\/li>\r\n \t<li>Melting alloy<\/li>\r\n \t<li>Solder pot<\/li>\r\n \t<li>Bimetallic<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>A shading coil is not required for a DC voltage coil. True or false?<\/li>\r\n \t<li>Overload protection for motors is achieved by connecting:\r\n<ol type=\"A\">\r\n \t<li>A set of N.C contacts in series with the motor<\/li>\r\n \t<li>Thermal sensing elements in series with the motor<\/li>\r\n \t<li>Cartridge fuses in series with the motor<\/li>\r\n \t<li>A reset relay in series with the motor<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>The part of a manual AC motor starter which senses motor overload current is the:\r\n<ol type=\"A\">\r\n \t<li>Overload contact<\/li>\r\n \t<li>Solder-pot assembly<\/li>\r\n \t<li>Heater element<\/li>\r\n \t<li>High-limit switch<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>The essential difference between a magnetic motor starter and a magnetic contactor is that the contactor does not contain:\r\n<ol type=\"A\">\r\n \t<li>Shading coils<\/li>\r\n \t<li>Holding contacts<\/li>\r\n \t<li>Overload relay protection<\/li>\r\n \t<li>Horsepower-rated contacts<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>The rotation of an AC three-phase induction motor may be reversed by interchanging:\r\n<ol type=\"A\">\r\n \t<li>The control circuit<\/li>\r\n \t<li>The forward\/reverse interlocks<\/li>\r\n \t<li>The forward reverse coils<\/li>\r\n \t<li>Any two power lines<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>If an AC magnetic contactor with a 480V coil was energized with 120V, then most likely the:\r\n<ol type=\"A\">\r\n \t<li>Overload relay would trip<\/li>\r\n \t<li>Contactor would not pick up<\/li>\r\n \t<li>Control circuit fuses would blow<\/li>\r\n \t<li>Coil would overheat during normal operation<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>In a control schematic, a dotted line between two coils generally means that the two coils:\r\n<ol type=\"A\">\r\n \t<li>Are operated together<\/li>\r\n \t<li>Are mechanically interlocked<\/li>\r\n \t<li>Are electrically interlocked<\/li>\r\n \t<li>Have a common set of contacts<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>During normal operation, a loud chattering noise is heard from the enclosure of an AC magnetic starter. What is the most likely cause?\r\n<ol type=\"A\">\r\n \t<li>Broken shading coil<\/li>\r\n \t<li>Open in the seal-in circuit<\/li>\r\n \t<li>Rust on pole faces<\/li>\r\n \t<li>Power contact is not making good contact due to poor pressure<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>The purpose of electrical interlocking in a three-phase reversing AC magnetic motor starter is to:\r\n<ol type=\"A\">\r\n \t<li>Ensure that the forward direction of rotation is selected first<\/li>\r\n \t<li>Allow both coils to be energized together<\/li>\r\n \t<li>Prevent both coils from being energized simultaneously<\/li>\r\n \t<li>Maintain the coil circuit after the stop button is released<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>A double-contact pushbutton is illustrated below. When connected as a start button in the control circuit of a magnetic starter, which pair of terminals are normally used?<img class=\"wp-image-905 size-medium aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-300x248.png\" alt=\"\" width=\"300\" height=\"248\" \/><\/li>\r\n \t<li>A time-delay relay includes both timed and instantaneous contacts. True or false?<\/li>\r\n \t<li>Fill in the missing words. The electrical interlocks on a reversing starter are normally _______ contacts<\/li>\r\n \t<li>A N.O.T.O contact will be closed while the coil of the relay is energized. True or false?<\/li>\r\n \t<li>A N.C.T.O designation refers to an off-delay timer. True or false?<\/li>\r\n \t<li>The electrical interlocks in a reversing magnetic starter are:\r\n<ol type=\"A\">\r\n \t<li>Normally closed contacts<\/li>\r\n \t<li>Normally open contacts<\/li>\r\n \t<li>In parallel with the forward and reverse pushbuttons<\/li>\r\n \t<li>Controlled by the timing relays necessary for circuit operation<\/li>\r\n<\/ol>\r\n<\/li>\r\n<\/ol>\r\n<h2>Answers<\/h2>\r\n<ol class=\"twocolumn\">\r\n \t<li>D<\/li>\r\n \t<li>C<\/li>\r\n \t<li>D<\/li>\r\n \t<li>C<\/li>\r\n \t<li>A<\/li>\r\n \t<li>A<\/li>\r\n \t<li>False<\/li>\r\n \t<li>D<\/li>\r\n \t<li>True<\/li>\r\n \t<li>B<\/li>\r\n \t<li>C<\/li>\r\n \t<li>C<\/li>\r\n \t<li>D<\/li>\r\n \t<li>B<\/li>\r\n \t<li>B<\/li>\r\n \t<li>A<\/li>\r\n \t<li>C<\/li>\r\n \t<li>3 and 4<\/li>\r\n \t<li>True<\/li>\r\n \t<li>Closed<\/li>\r\n \t<li>True<\/li>\r\n \t<li>False<\/li>\r\n \t<li>A<\/li>\r\n<\/ol>\r\n<h1>Diagrams - Self Test 4<\/h1>\r\n<h2>Questions<\/h2>\r\n<img class=\"aligncenter wp-image-900 size-large\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e7472dce14-e1596733042958-1024x342.png\" alt=\"\" width=\"1024\" height=\"342\" \/>\r\n\r\nUsing the above diagram, answer questions 1 to 5:\r\n<ol>\r\n \t<li>Which letter identifies the component that normally provides overcurrent protection for the motor branch circuit?<\/li>\r\n \t<li>Which letter identifies the component that normally provides overload protection for the motor branch circuit?<\/li>\r\n \t<li>When energized by the control circuit, which letter identifies the component that provides normal starting and stopping actions?<\/li>\r\n \t<li>Between which two letters is the control circuit power normally taken from?<\/li>\r\n \t<li>Which letter(s) identify devices that must be horsepower rated?<\/li>\r\n<\/ol>\r\n&nbsp;\r\n<ol start=\"6\">\r\n \t<li>In a motor control circuit with multiple start\/start pushbutton stations, the stop buttons would be connected in ______ and the start buttons would be connected in _______.<\/li>\r\n \t<li>To troubleshoot an electrical control circuit, the best drawing to be used would be:\r\n<ol type=\"A\">\r\n \t<li>Schematic<\/li>\r\n \t<li>Pictorial<\/li>\r\n \t<li>Wiring<\/li>\r\n \t<li>RIser<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>A drawing which shows the relative locations of various components is a:\r\n<ol type=\"A\">\r\n \t<li>Wiring diagram<\/li>\r\n \t<li>Schematic diagram<\/li>\r\n \t<li>Elementary diagram<\/li>\r\n \t<li>Ladder diagram<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>Referencing the following drawing, what is the number of wires required where indicated?<img class=\"aligncenter wp-image-908\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfe872b205-1024x764.png\" alt=\"\" width=\"700\" height=\"522\" \/><\/li>\r\n<\/ol>\r\n<h2>Answers<\/h2>\r\n<ol class=\"twocolumn\">\r\n \t<li>B<\/li>\r\n \t<li>D<\/li>\r\n \t<li>C<\/li>\r\n \t<li>B and C<\/li>\r\n \t<li>A and C<\/li>\r\n \t<li>Series, parallel<\/li>\r\n \t<li>A<\/li>\r\n \t<li>A<\/li>\r\n \t<li>3<\/li>\r\n<\/ol>\r\n<h1>Circuits - Self Test 5<\/h1>\r\n<h2>Questions<\/h2>\r\nUsing the following diagram, answer questions 1 to 5:\r\n\r\n<img class=\"wp-image-899 size-large aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-1024x346.png\" alt=\"\" width=\"1024\" height=\"346\" \/>\r\n<ol>\r\n \t<li>Which letter identifies the component that normally provides overcurrent protection for the motor branch circuit?<\/li>\r\n \t<li>Which letter identifies the component that normally provides overload protection for the motor branch circuit?<\/li>\r\n \t<li>When energized by the control circuit, which letter identifies the component that provides normal starting and stopping actions?<\/li>\r\n \t<li>Between which two letters is the control circuit power normally taken from?<\/li>\r\n \t<li>Which letter(s) identify devices that must be horsepower rated?<\/li>\r\n<\/ol>\r\n&nbsp;\r\n<ol start=\"6\">\r\n \t<li>The minimum number of control circuit conductors to a stop\/forward\/reverse pushbutton station that provides low-voltage protection for a three-phase reversible motor is:\r\n<ol type=\"A\">\r\n \t<li>2 wires<\/li>\r\n \t<li>3 wires<\/li>\r\n \t<li>4 wires<\/li>\r\n \t<li>6 wires<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>Inching is another term used for:\r\n<ol type=\"A\">\r\n \t<li>Jogging<\/li>\r\n \t<li>Plugging<\/li>\r\n \t<li>Shunting<\/li>\r\n \t<li>Hunting<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>The rotation of an AC three-phase induction motor may be reversed by interchanging:\r\n<ol type=\"A\">\r\n \t<li>The control circuit<\/li>\r\n \t<li>The forward\/reverse interlocks<\/li>\r\n \t<li>The forward reverse coils<\/li>\r\n \t<li>Any two power lines<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>In a control schematic, a dotted line between two coils generally means that the two coils:\r\n<ol type=\"A\">\r\n \t<li>Are operated together<\/li>\r\n \t<li>Are mechanically interlocked<\/li>\r\n \t<li>Are electrically interlocked<\/li>\r\n \t<li>Have a common set of contacts<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>The purpose of electrical interlocking in a three-phase reversing AC magnetic motor starter is to:\r\n<ol type=\"A\">\r\n \t<li>Ensure that the forward direction of rotation is selected first<\/li>\r\n \t<li>Allow both coils to be energized together<\/li>\r\n \t<li>Prevent both coils from being energized simultaneously<\/li>\r\n \t<li>Maintain the coil circuit after the stop button is released<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>To connect a motor solely for jogging operation, the control circuit will:\r\n<ol type=\"A\">\r\n \t<li>Use holding contacts<\/li>\r\n \t<li>Connect holding contacts in series with the start button<\/li>\r\n \t<li>Connect holding contacts in parallel with the start button<\/li>\r\n \t<li>Not use holding contacts<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>In regards to the drawing, the best label for the pushbutton labelled \"Z\" would be:\r\n<ol type=\"A\">\r\n \t<li>Stop<\/li>\r\n \t<li>Jog<\/li>\r\n \t<li>Run<\/li>\r\n \t<li>Reset<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>In regards to the drawing, the best label for pushbutton \"Y\" would be:\r\n<ol type=\"A\">\r\n \t<li>Stop<\/li>\r\n \t<li>Jog<\/li>\r\n \t<li>Run<\/li>\r\n \t<li>Reset<\/li>\r\n<\/ol>\r\n<\/li>\r\n<\/ol>\r\nUse the following image to answer questions 14 and 15.\r\n\r\n<img class=\"wp-image-913 size-large aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-1024x764.png\" alt=\"\" width=\"1024\" height=\"764\" \/>\r\n<ol start=\"14\">\r\n \t<li>What is the minimum number of control circuit conductors required in Conduit A?\r\n<ol type=\"A\">\r\n \t<li>2 wires<\/li>\r\n \t<li>3 wires<\/li>\r\n \t<li>4 wires<\/li>\r\n \t<li>5 wires<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>What is the minimum number of control circuit conductors required in Conduit B?\r\n<ol type=\"A\">\r\n \t<li>2 wires<\/li>\r\n \t<li>3 wires<\/li>\r\n \t<li>4 wires<\/li>\r\n \t<li>5 wires<\/li>\r\n<\/ol>\r\n<\/li>\r\n<\/ol>\r\n&nbsp;\r\n<ol start=\"16\">\r\n \t<li>Timed relays are the best method to provide plugging for a motor. True or false?<\/li>\r\n \t<li>A time-delay relay includes both timed and instantaneous contacts. True or false?<\/li>\r\n \t<li>A N.C.T.C contact will be open immediately after the coil is de-energized. True or false?<\/li>\r\n \t<li>A N.O.T.O contact will be closed while the coil of the relay is energized. True or false?<\/li>\r\n \t<li>A N.C.T.O designation refers to an off-delay timer. True or false?<\/li>\r\n \t<li>The electrical interlocks in a reversing magnetic starter are:\r\n<ol type=\"A\">\r\n \t<li>Normally closed contacts<\/li>\r\n \t<li>Normally open contacts<\/li>\r\n \t<li>In parallel with the forward and reverse pushbuttons<\/li>\r\n \t<li>Controlled by the timing relays necessary for circuit operation<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>Overload protection for motors is achieved by connecting:\r\n<ol type=\"A\">\r\n \t<li>Thermal sensing elements in series with the motor<\/li>\r\n \t<li>A reset relay in series with the motor<\/li>\r\n \t<li>Cartridge fuses in series with the motor<\/li>\r\n \t<li>A set of N.C contacts in series with the motor<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>Jogging refers to a:\r\n<ol type=\"A\">\r\n \t<li>Motor that is not capable of developing constant torque<\/li>\r\n \t<li>Motor that is polyphasing<\/li>\r\n \t<li>Motor that periodically starts and stops<\/li>\r\n \t<li>Method used to stop a motor for exact positioning<\/li>\r\n<\/ol>\r\n<\/li>\r\n<\/ol>\r\n<h2>Answers<\/h2>\r\n<ol class=\"twocolumn\">\r\n \t<li>B<\/li>\r\n \t<li>D<\/li>\r\n \t<li>C<\/li>\r\n \t<li>B and C<\/li>\r\n \t<li>A and C<\/li>\r\n \t<li>C<\/li>\r\n \t<li>A<\/li>\r\n \t<li>D<\/li>\r\n \t<li>B<\/li>\r\n \t<li>C<\/li>\r\n \t<li>D<\/li>\r\n \t<li>B<\/li>\r\n \t<li>C<\/li>\r\n \t<li>?<\/li>\r\n \t<li>C<\/li>\r\n \t<li>False<\/li>\r\n \t<li>True<\/li>\r\n \t<li>False<\/li>\r\n \t<li>True<\/li>\r\n \t<li>False<\/li>\r\n \t<li>A<\/li>\r\n \t<li>A<\/li>\r\n \t<li>D<\/li>\r\n<\/ol>\r\n<h1>Troubleshooting - Self Test 6<\/h1>\r\n<ol>\r\n \t<li>A drawing which shows the relative locations of various components is a:\r\n<ol type=\"A\">\r\n \t<li>Wiring diagram<\/li>\r\n \t<li>Schematic diagram<\/li>\r\n \t<li>Elementary diagram<\/li>\r\n \t<li>Ladder diagram<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>To ensure safety for maintenance, the motor disconnecting switch must be locked in the \"OFF\" position. After the maintenance work is completed, the lock is removed by:\r\n<ol>\r\n \t<li>The supervisor<\/li>\r\n \t<li>The project manager<\/li>\r\n \t<li>The person who put the lock on<\/li>\r\n \t<li>The lead hand<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>With regard to workers safety, \"isolation\" refers to:\r\n<ol>\r\n \t<li>Moving to a remote location<\/li>\r\n \t<li>Disconnect from all energy sources<\/li>\r\n \t<li>Turn off the electrical switch<\/li>\r\n \t<li>Fence off the work site<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>Referring to the drawing, assuming that fuse C is blown, which pair of points will result in a reading of zero volts when the voltmeter is connected across them?<img class=\"aligncenter wp-image-902 size-medium\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-226x300.png\" alt=\"\" width=\"226\" height=\"300\" \/><\/li>\r\n \t<li>The disconnecting means which is NOT intended for interrupting current flow is the:\r\n<ol>\r\n \t<li>Motor switch<\/li>\r\n \t<li>General use switch<\/li>\r\n \t<li>Isolating switch<\/li>\r\n \t<li>Circuit breaker<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>If the circuit in the drawing was operating normally and an overload occurred, then:<img class=\"wp-image-907 aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147.png\" alt=\"\" width=\"600\" height=\"318\" \/>\r\n<ol type=\"A\">\r\n \t<li>Both lights would come on<\/li>\r\n \t<li>The green light would come on, and the red light would go out<\/li>\r\n \t<li>Both lights would go out<\/li>\r\n \t<li>The red light would come on, and the green light would go out<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>During normal operation, a loud chattering noise is heard from the enclosure of an AC magnetic starter. What is the most likely cause?\r\n<ol type=\"A\">\r\n \t<li>Broken shading coil<\/li>\r\n \t<li>Open in the seal-in circuit<\/li>\r\n \t<li>Rust on pole faces<\/li>\r\n \t<li>Power contact is not making good contact due to poor pressure<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>If the control circuit shown below tripped due to overload, then which of the voltmeter positions shown would indicate line voltage?<img class=\"aligncenter wp-image-914 size-large\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d1e75125eb-e1596745523842-1024x708.png\" alt=\"\" width=\"1024\" height=\"708\" \/>\r\n<ol>\r\n \t<li>VM A<\/li>\r\n \t<li>VM B<\/li>\r\n \t<li>VM C<\/li>\r\n \t<li>VM D<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>What is the minimum number of control circuit conductors required in Conduit A?<img class=\"wp-image-913 size-large aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-1024x764.png\" alt=\"\" width=\"1024\" height=\"764\" \/>\r\n<ol type=\"A\">\r\n \t<li>2 wires<\/li>\r\n \t<li>3 wires<\/li>\r\n \t<li>4 wires<\/li>\r\n \t<li>5 wires<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>An isolating switch can be used as a motor power circuit disconnect switch. True or false?<\/li>\r\n<\/ol>\r\nUse the following image to answer questions 11 and 12.\r\n\r\n<img class=\"alignnone size-full wp-image-907\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147.png\" alt=\"\" width=\"3343\" height=\"1770\" \/>\r\n<ol start=\"11\">\r\n \t<li>If the motor starter in the drawing is energized and functioning properly, what should the voltage be across the normally open contact (M)?\r\n<ol type=\"A\">\r\n \t<li>Line voltage<\/li>\r\n \t<li>Zero voltage<\/li>\r\n \t<li>Half of line voltage<\/li>\r\n \t<li>Twice line voltage<\/li>\r\n<\/ol>\r\n<\/li>\r\n \t<li>If the motor starter in the drawing is energized and functioning properly, what should be the voltage across the N.C contact (M)?\r\n<ol type=\"A\">\r\n \t<li>Line voltage<\/li>\r\n \t<li>Zero voltage<\/li>\r\n \t<li>Half of line voltage<\/li>\r\n \t<li>Twice line voltage<\/li>\r\n<\/ol>\r\n<\/li>\r\n<\/ol>\r\n<h2>Answers<\/h2>\r\n<ol>\r\n \t<li>A<\/li>\r\n \t<li>C<\/li>\r\n \t<li>B<\/li>\r\n \t<li>3 and 6<\/li>\r\n \t<li>C<\/li>\r\n \t<li>D<\/li>\r\n \t<li>A<\/li>\r\n \t<li>?<\/li>\r\n \t<li>?<\/li>\r\n \t<li>False<\/li>\r\n \t<li>B<\/li>\r\n \t<li>A<\/li>\r\n<\/ol>","rendered":"<h1>Terms and Definitions &#8211; Self Test 1<\/h1>\n<h2>Questions<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-899 size-large aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-1024x346.png\" alt=\"\" width=\"1024\" height=\"346\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-1024x346.png 1024w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-300x101.png 300w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-768x260.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-1536x520.png 1536w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-2048x693.png 2048w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-65x22.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-225x76.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-350x118.png 350w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>Using the above diagram, answer questions 1 to 5:<\/p>\n<ol>\n<li>Which letter identifies the component that normally provides overcurrent protection for the motor branch circuit?<\/li>\n<li>Which letter identifies the component that normally provides overload protection for the motor branch circuit?<\/li>\n<li>When energized by the control circuit, which letter identifies the component that provides normal starting and stopping actions?<\/li>\n<li>Between which two letters is the control circuit power normally taken from?<\/li>\n<li>Which letter(s) identify devices that must be horsepower rated?<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol start=\"6\">\n<li>A melting alloy type of thermal overload is called a:\n<ol type=\"A\">\n<li>Solder-pot relay<\/li>\n<li>Dash-pot relay<\/li>\n<li>Thermal relay<\/li>\n<li>Bimetallic relay<\/li>\n<\/ol>\n<\/li>\n<li>The part of a manual AC motor starter which senses motor overload current is the:\n<ol type=\"A\">\n<li>High-limit switch<\/li>\n<li>Solder-pot assembly<\/li>\n<li>Overload contact<\/li>\n<li>Heater element<\/li>\n<\/ol>\n<\/li>\n<li>If automatic starting after a power failure represents a safety hazard for a motor drive, it should be equipped with:\n<ol type=\"A\">\n<li>Low voltage release<\/li>\n<li>A flashing red light<\/li>\n<li>Low-voltage protection<\/li>\n<li>A warning sign<\/li>\n<\/ol>\n<\/li>\n<li>An overload relay that uses a strip of dissimilar metals is called a _______ relay\n<ol type=\"A\">\n<li>Melting alloy<\/li>\n<li>Thermistor<\/li>\n<li>Solder pot<\/li>\n<li>Bimetallic<\/li>\n<\/ol>\n<\/li>\n<li>Referring to the drawing, assuming that fuse C is blown, which pair of points will result in a reading of zero volts when the voltmeter is connected across them?<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-902 size-medium\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-226x300.png\" alt=\"\" width=\"226\" height=\"300\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-226x300.png 226w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-772x1024.png 772w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-768x1018.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-1158x1536.png 1158w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-1544x2048.png 1544w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-65x86.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-225x298.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-350x464.png 350w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897.png 1809w\" sizes=\"auto, (max-width: 226px) 100vw, 226px\" \/><\/li>\n<li>To connect a motor solely for jogging operation, the control circuit will:\n<ol type=\"A\">\n<li>Use holding contacts<\/li>\n<li>Connect holding contacts in series with the start button<\/li>\n<li>Connect holding contacts in parallel with the start button<\/li>\n<li>Not use holding contacts<\/li>\n<\/ol>\n<\/li>\n<li>Timed relays are the best method to provide plugging for a motor. True or false?<\/li>\n<li>The electrical interlocks in a reversing magnetic starter are:\n<ol type=\"A\">\n<li>Controlled by the timing relays necessary for circuit operation<\/li>\n<li>In parallel with the forward and reverse pushbuttons<\/li>\n<li>Normally closed contacts<\/li>\n<li>Normally open contacts<\/li>\n<\/ol>\n<\/li>\n<li>Overload protection for motors is achieved by connecting:\n<ol type=\"A\">\n<li>Thermal sensing elements in series with the motor<\/li>\n<li>A reset relay in series with the motor<\/li>\n<li>Cartridge fuses in series with the motor<\/li>\n<li>A set of N.C contacts in series with the motor<\/li>\n<\/ol>\n<\/li>\n<li>With a three-wire control circuit, when power is restored after a low voltage situation:\n<ol type=\"A\">\n<li>An operator must restart the motor<\/li>\n<li>The motor will polyphase<\/li>\n<li>The motor will automatically restart<\/li>\n<li>The motor will automatically restart after a time delay<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<h2>Answers<\/h2>\n<ol class=\"twocolumn\">\n<li>B<\/li>\n<li>D<\/li>\n<li>C<\/li>\n<li>B and C<\/li>\n<li>A and C<\/li>\n<li><span class=\"h5p-alternative-inner\">A<\/span><\/li>\n<li>D<\/li>\n<li>C<\/li>\n<li>A<\/li>\n<li>3 and 6<\/li>\n<li>D<\/li>\n<li>False<\/li>\n<li>C<\/li>\n<li>A<\/li>\n<li>A<\/li>\n<\/ol>\n<h1>Pilot Devices &#8211; Self Test 2<\/h1>\n<h2>Questions<\/h2>\n<ol>\n<li>In a motor control circuit with multiple start\/start pushbutton stations, the stop buttons would be connected in ______ and the start buttons would be connected in _______.<\/li>\n<li>To troubleshoot an electrical control circuit, the best drawing to be used would be:\n<ol type=\"A\">\n<li>Schematic<\/li>\n<li>Wiring<\/li>\n<li>Pictorial<\/li>\n<li>RIser<\/li>\n<\/ol>\n<\/li>\n<li>A double contact pushbutton is illustrated below. When connected as a start button in the control circuit of a magnetic starter, which pair of terminals are normally utilized?<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-905 size-medium aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-300x248.png\" alt=\"\" width=\"300\" height=\"248\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-300x248.png 300w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-768x635.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-65x54.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-225x186.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-350x289.png 350w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385.png 864w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/li>\n<li>Timed relays are the best method to provide plugging for a motor. True or false?<\/li>\n<\/ol>\n<h2>Answers<\/h2>\n<ol>\n<li>Series, parallel<\/li>\n<li>A<\/li>\n<li>3 and 4<\/li>\n<li>False<\/li>\n<\/ol>\n<h1>Motor Starters and Contactors &#8211; Self Test 3<\/h1>\n<h2>Questions<\/h2>\n<ol>\n<li>The minimum number of control circuit conductors to a stop\/forward\/reverse pushbutton station that provides low-voltage protection for a three-phase reversible motor is:\n<ol type=\"A\">\n<li>2 wires<\/li>\n<li>3 wires<\/li>\n<li>4 wires<\/li>\n<li>6 wires<\/li>\n<\/ol>\n<\/li>\n<li>Which of the following type of motor starter does not normally provide running protection for the motor?\n<ol type=\"A\">\n<li>A magnetic starter<\/li>\n<li>A pushbutton starter<\/li>\n<li>A toggle-switch starter<\/li>\n<li>A drum-switch controller<\/li>\n<\/ol>\n<\/li>\n<li>If the circuit in the drawing was operating normally and an overload occurred, then:<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-907 aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147.png\" alt=\"\" width=\"600\" height=\"318\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147.png 3343w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-300x159.png 300w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-1024x542.png 1024w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-768x407.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-1536x813.png 1536w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-2048x1084.png 2048w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-65x34.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-225x119.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-350x185.png 350w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\n<ol type=\"A\">\n<li>Both lights would come on<\/li>\n<li>The green light would come on, and the red light would go out<\/li>\n<li>Both lights would go out<\/li>\n<li>The red light would come on, and the green light would go out<\/li>\n<\/ol>\n<\/li>\n<li>With a three-wire control circuit, when power is restored after a low voltage situation:\n<ol type=\"A\">\n<li>The motor will automatically restart after a time delay<\/li>\n<li>The motor will automatically restart<\/li>\n<li>An operator must restart the motor<\/li>\n<li>The motor will polyphase<\/li>\n<\/ol>\n<\/li>\n<li>A melting alloy type of thermal overload is called a:\n<ol type=\"A\">\n<li>Solder-pot relay<\/li>\n<li>Thermal relay<\/li>\n<li>Bimetallic relay<\/li>\n<li>Dash-pot relay<\/li>\n<\/ol>\n<\/li>\n<li>A starter rated at 10HP, 600 V, if used on a 120V motor would most likely be rated at:\n<ol type=\"A\">\n<li>2 HP<\/li>\n<li>3 HP<\/li>\n<li>10 HP<\/li>\n<li>2.5 HP<\/li>\n<\/ol>\n<\/li>\n<li>A N.C.T.C contact will be open immediately after the coil is de-energized. True or false?<\/li>\n<li>An overload relay that uses a strip of dissimilar metals is called a _______ relay\n<ol type=\"A\">\n<li>Thermistor<\/li>\n<li>Melting alloy<\/li>\n<li>Solder pot<\/li>\n<li>Bimetallic<\/li>\n<\/ol>\n<\/li>\n<li>A shading coil is not required for a DC voltage coil. True or false?<\/li>\n<li>Overload protection for motors is achieved by connecting:\n<ol type=\"A\">\n<li>A set of N.C contacts in series with the motor<\/li>\n<li>Thermal sensing elements in series with the motor<\/li>\n<li>Cartridge fuses in series with the motor<\/li>\n<li>A reset relay in series with the motor<\/li>\n<\/ol>\n<\/li>\n<li>The part of a manual AC motor starter which senses motor overload current is the:\n<ol type=\"A\">\n<li>Overload contact<\/li>\n<li>Solder-pot assembly<\/li>\n<li>Heater element<\/li>\n<li>High-limit switch<\/li>\n<\/ol>\n<\/li>\n<li>The essential difference between a magnetic motor starter and a magnetic contactor is that the contactor does not contain:\n<ol type=\"A\">\n<li>Shading coils<\/li>\n<li>Holding contacts<\/li>\n<li>Overload relay protection<\/li>\n<li>Horsepower-rated contacts<\/li>\n<\/ol>\n<\/li>\n<li>The rotation of an AC three-phase induction motor may be reversed by interchanging:\n<ol type=\"A\">\n<li>The control circuit<\/li>\n<li>The forward\/reverse interlocks<\/li>\n<li>The forward reverse coils<\/li>\n<li>Any two power lines<\/li>\n<\/ol>\n<\/li>\n<li>If an AC magnetic contactor with a 480V coil was energized with 120V, then most likely the:\n<ol type=\"A\">\n<li>Overload relay would trip<\/li>\n<li>Contactor would not pick up<\/li>\n<li>Control circuit fuses would blow<\/li>\n<li>Coil would overheat during normal operation<\/li>\n<\/ol>\n<\/li>\n<li>In a control schematic, a dotted line between two coils generally means that the two coils:\n<ol type=\"A\">\n<li>Are operated together<\/li>\n<li>Are mechanically interlocked<\/li>\n<li>Are electrically interlocked<\/li>\n<li>Have a common set of contacts<\/li>\n<\/ol>\n<\/li>\n<li>During normal operation, a loud chattering noise is heard from the enclosure of an AC magnetic starter. What is the most likely cause?\n<ol type=\"A\">\n<li>Broken shading coil<\/li>\n<li>Open in the seal-in circuit<\/li>\n<li>Rust on pole faces<\/li>\n<li>Power contact is not making good contact due to poor pressure<\/li>\n<\/ol>\n<\/li>\n<li>The purpose of electrical interlocking in a three-phase reversing AC magnetic motor starter is to:\n<ol type=\"A\">\n<li>Ensure that the forward direction of rotation is selected first<\/li>\n<li>Allow both coils to be energized together<\/li>\n<li>Prevent both coils from being energized simultaneously<\/li>\n<li>Maintain the coil circuit after the stop button is released<\/li>\n<\/ol>\n<\/li>\n<li>A double-contact pushbutton is illustrated below. When connected as a start button in the control circuit of a magnetic starter, which pair of terminals are normally used?<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-905 size-medium aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-300x248.png\" alt=\"\" width=\"300\" height=\"248\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-300x248.png 300w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-768x635.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-65x54.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-225x186.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385-350x289.png 350w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d208d5b8ed-e1596734644385.png 864w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/li>\n<li>A time-delay relay includes both timed and instantaneous contacts. True or false?<\/li>\n<li>Fill in the missing words. The electrical interlocks on a reversing starter are normally _______ contacts<\/li>\n<li>A N.O.T.O contact will be closed while the coil of the relay is energized. True or false?<\/li>\n<li>A N.C.T.O designation refers to an off-delay timer. True or false?<\/li>\n<li>The electrical interlocks in a reversing magnetic starter are:\n<ol type=\"A\">\n<li>Normally closed contacts<\/li>\n<li>Normally open contacts<\/li>\n<li>In parallel with the forward and reverse pushbuttons<\/li>\n<li>Controlled by the timing relays necessary for circuit operation<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<h2>Answers<\/h2>\n<ol class=\"twocolumn\">\n<li>D<\/li>\n<li>C<\/li>\n<li>D<\/li>\n<li>C<\/li>\n<li>A<\/li>\n<li>A<\/li>\n<li>False<\/li>\n<li>D<\/li>\n<li>True<\/li>\n<li>B<\/li>\n<li>C<\/li>\n<li>C<\/li>\n<li>D<\/li>\n<li>B<\/li>\n<li>B<\/li>\n<li>A<\/li>\n<li>C<\/li>\n<li>3 and 4<\/li>\n<li>True<\/li>\n<li>Closed<\/li>\n<li>True<\/li>\n<li>False<\/li>\n<li>A<\/li>\n<\/ol>\n<h1>Diagrams &#8211; Self Test 4<\/h1>\n<h2>Questions<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-900 size-large\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e7472dce14-e1596733042958-1024x342.png\" alt=\"\" width=\"1024\" height=\"342\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e7472dce14-e1596733042958-1024x342.png 1024w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e7472dce14-e1596733042958-300x100.png 300w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e7472dce14-e1596733042958-768x257.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e7472dce14-e1596733042958-1536x513.png 1536w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e7472dce14-e1596733042958-2048x685.png 2048w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e7472dce14-e1596733042958-65x22.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e7472dce14-e1596733042958-225x75.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e7472dce14-e1596733042958-350x117.png 350w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>Using the above diagram, answer questions 1 to 5:<\/p>\n<ol>\n<li>Which letter identifies the component that normally provides overcurrent protection for the motor branch circuit?<\/li>\n<li>Which letter identifies the component that normally provides overload protection for the motor branch circuit?<\/li>\n<li>When energized by the control circuit, which letter identifies the component that provides normal starting and stopping actions?<\/li>\n<li>Between which two letters is the control circuit power normally taken from?<\/li>\n<li>Which letter(s) identify devices that must be horsepower rated?<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol start=\"6\">\n<li>In a motor control circuit with multiple start\/start pushbutton stations, the stop buttons would be connected in ______ and the start buttons would be connected in _______.<\/li>\n<li>To troubleshoot an electrical control circuit, the best drawing to be used would be:\n<ol type=\"A\">\n<li>Schematic<\/li>\n<li>Pictorial<\/li>\n<li>Wiring<\/li>\n<li>RIser<\/li>\n<\/ol>\n<\/li>\n<li>A drawing which shows the relative locations of various components is a:\n<ol type=\"A\">\n<li>Wiring diagram<\/li>\n<li>Schematic diagram<\/li>\n<li>Elementary diagram<\/li>\n<li>Ladder diagram<\/li>\n<\/ol>\n<\/li>\n<li>Referencing the following drawing, what is the number of wires required where indicated?<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-908\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfe872b205-1024x764.png\" alt=\"\" width=\"700\" height=\"522\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfe872b205-1024x764.png 1024w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfe872b205-300x224.png 300w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfe872b205-768x573.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfe872b205-1536x1146.png 1536w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfe872b205-2048x1527.png 2048w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfe872b205-65x48.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfe872b205-225x168.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfe872b205-350x261.png 350w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/li>\n<\/ol>\n<h2>Answers<\/h2>\n<ol class=\"twocolumn\">\n<li>B<\/li>\n<li>D<\/li>\n<li>C<\/li>\n<li>B and C<\/li>\n<li>A and C<\/li>\n<li>Series, parallel<\/li>\n<li>A<\/li>\n<li>A<\/li>\n<li>3<\/li>\n<\/ol>\n<h1>Circuits &#8211; Self Test 5<\/h1>\n<h2>Questions<\/h2>\n<p>Using the following diagram, answer questions 1 to 5:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-899 size-large aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-1024x346.png\" alt=\"\" width=\"1024\" height=\"346\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-1024x346.png 1024w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-300x101.png 300w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-768x260.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-1536x520.png 1536w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-2048x693.png 2048w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-65x22.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-225x76.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d265b09a2c-e1596732920104-350x118.png 350w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<ol>\n<li>Which letter identifies the component that normally provides overcurrent protection for the motor branch circuit?<\/li>\n<li>Which letter identifies the component that normally provides overload protection for the motor branch circuit?<\/li>\n<li>When energized by the control circuit, which letter identifies the component that provides normal starting and stopping actions?<\/li>\n<li>Between which two letters is the control circuit power normally taken from?<\/li>\n<li>Which letter(s) identify devices that must be horsepower rated?<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol start=\"6\">\n<li>The minimum number of control circuit conductors to a stop\/forward\/reverse pushbutton station that provides low-voltage protection for a three-phase reversible motor is:\n<ol type=\"A\">\n<li>2 wires<\/li>\n<li>3 wires<\/li>\n<li>4 wires<\/li>\n<li>6 wires<\/li>\n<\/ol>\n<\/li>\n<li>Inching is another term used for:\n<ol type=\"A\">\n<li>Jogging<\/li>\n<li>Plugging<\/li>\n<li>Shunting<\/li>\n<li>Hunting<\/li>\n<\/ol>\n<\/li>\n<li>The rotation of an AC three-phase induction motor may be reversed by interchanging:\n<ol type=\"A\">\n<li>The control circuit<\/li>\n<li>The forward\/reverse interlocks<\/li>\n<li>The forward reverse coils<\/li>\n<li>Any two power lines<\/li>\n<\/ol>\n<\/li>\n<li>In a control schematic, a dotted line between two coils generally means that the two coils:\n<ol type=\"A\">\n<li>Are operated together<\/li>\n<li>Are mechanically interlocked<\/li>\n<li>Are electrically interlocked<\/li>\n<li>Have a common set of contacts<\/li>\n<\/ol>\n<\/li>\n<li>The purpose of electrical interlocking in a three-phase reversing AC magnetic motor starter is to:\n<ol type=\"A\">\n<li>Ensure that the forward direction of rotation is selected first<\/li>\n<li>Allow both coils to be energized together<\/li>\n<li>Prevent both coils from being energized simultaneously<\/li>\n<li>Maintain the coil circuit after the stop button is released<\/li>\n<\/ol>\n<\/li>\n<li>To connect a motor solely for jogging operation, the control circuit will:\n<ol type=\"A\">\n<li>Use holding contacts<\/li>\n<li>Connect holding contacts in series with the start button<\/li>\n<li>Connect holding contacts in parallel with the start button<\/li>\n<li>Not use holding contacts<\/li>\n<\/ol>\n<\/li>\n<li>In regards to the drawing, the best label for the pushbutton labelled &#8220;Z&#8221; would be:\n<ol type=\"A\">\n<li>Stop<\/li>\n<li>Jog<\/li>\n<li>Run<\/li>\n<li>Reset<\/li>\n<\/ol>\n<\/li>\n<li>In regards to the drawing, the best label for pushbutton &#8220;Y&#8221; would be:\n<ol type=\"A\">\n<li>Stop<\/li>\n<li>Jog<\/li>\n<li>Run<\/li>\n<li>Reset<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<p>Use the following image to answer questions 14 and 15.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-913 size-large aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-1024x764.png\" alt=\"\" width=\"1024\" height=\"764\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-1024x764.png 1024w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-300x224.png 300w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-768x573.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-1536x1146.png 1536w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-2048x1527.png 2048w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-65x48.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-225x168.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-350x261.png 350w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<ol start=\"14\">\n<li>What is the minimum number of control circuit conductors required in Conduit A?\n<ol type=\"A\">\n<li>2 wires<\/li>\n<li>3 wires<\/li>\n<li>4 wires<\/li>\n<li>5 wires<\/li>\n<\/ol>\n<\/li>\n<li>What is the minimum number of control circuit conductors required in Conduit B?\n<ol type=\"A\">\n<li>2 wires<\/li>\n<li>3 wires<\/li>\n<li>4 wires<\/li>\n<li>5 wires<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol start=\"16\">\n<li>Timed relays are the best method to provide plugging for a motor. True or false?<\/li>\n<li>A time-delay relay includes both timed and instantaneous contacts. True or false?<\/li>\n<li>A N.C.T.C contact will be open immediately after the coil is de-energized. True or false?<\/li>\n<li>A N.O.T.O contact will be closed while the coil of the relay is energized. True or false?<\/li>\n<li>A N.C.T.O designation refers to an off-delay timer. True or false?<\/li>\n<li>The electrical interlocks in a reversing magnetic starter are:\n<ol type=\"A\">\n<li>Normally closed contacts<\/li>\n<li>Normally open contacts<\/li>\n<li>In parallel with the forward and reverse pushbuttons<\/li>\n<li>Controlled by the timing relays necessary for circuit operation<\/li>\n<\/ol>\n<\/li>\n<li>Overload protection for motors is achieved by connecting:\n<ol type=\"A\">\n<li>Thermal sensing elements in series with the motor<\/li>\n<li>A reset relay in series with the motor<\/li>\n<li>Cartridge fuses in series with the motor<\/li>\n<li>A set of N.C contacts in series with the motor<\/li>\n<\/ol>\n<\/li>\n<li>Jogging refers to a:\n<ol type=\"A\">\n<li>Motor that is not capable of developing constant torque<\/li>\n<li>Motor that is polyphasing<\/li>\n<li>Motor that periodically starts and stops<\/li>\n<li>Method used to stop a motor for exact positioning<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<h2>Answers<\/h2>\n<ol class=\"twocolumn\">\n<li>B<\/li>\n<li>D<\/li>\n<li>C<\/li>\n<li>B and C<\/li>\n<li>A and C<\/li>\n<li>C<\/li>\n<li>A<\/li>\n<li>D<\/li>\n<li>B<\/li>\n<li>C<\/li>\n<li>D<\/li>\n<li>B<\/li>\n<li>C<\/li>\n<li>?<\/li>\n<li>C<\/li>\n<li>False<\/li>\n<li>True<\/li>\n<li>False<\/li>\n<li>True<\/li>\n<li>False<\/li>\n<li>A<\/li>\n<li>A<\/li>\n<li>D<\/li>\n<\/ol>\n<h1>Troubleshooting &#8211; Self Test 6<\/h1>\n<ol>\n<li>A drawing which shows the relative locations of various components is a:\n<ol type=\"A\">\n<li>Wiring diagram<\/li>\n<li>Schematic diagram<\/li>\n<li>Elementary diagram<\/li>\n<li>Ladder diagram<\/li>\n<\/ol>\n<\/li>\n<li>To ensure safety for maintenance, the motor disconnecting switch must be locked in the &#8220;OFF&#8221; position. After the maintenance work is completed, the lock is removed by:\n<ol>\n<li>The supervisor<\/li>\n<li>The project manager<\/li>\n<li>The person who put the lock on<\/li>\n<li>The lead hand<\/li>\n<\/ol>\n<\/li>\n<li>With regard to workers safety, &#8220;isolation&#8221; refers to:\n<ol>\n<li>Moving to a remote location<\/li>\n<li>Disconnect from all energy sources<\/li>\n<li>Turn off the electrical switch<\/li>\n<li>Fence off the work site<\/li>\n<\/ol>\n<\/li>\n<li>Referring to the drawing, assuming that fuse C is blown, which pair of points will result in a reading of zero volts when the voltmeter is connected across them?<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-902 size-medium\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-226x300.png\" alt=\"\" width=\"226\" height=\"300\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-226x300.png 226w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-772x1024.png 772w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-768x1018.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-1158x1536.png 1158w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-1544x2048.png 1544w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-65x86.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-225x298.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897-350x464.png 350w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0cfaeb0acc2-e1596733809897.png 1809w\" sizes=\"auto, (max-width: 226px) 100vw, 226px\" \/><\/li>\n<li>The disconnecting means which is NOT intended for interrupting current flow is the:\n<ol>\n<li>Motor switch<\/li>\n<li>General use switch<\/li>\n<li>Isolating switch<\/li>\n<li>Circuit breaker<\/li>\n<\/ol>\n<\/li>\n<li>If the circuit in the drawing was operating normally and an overload occurred, then:<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-907 aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147.png\" alt=\"\" width=\"600\" height=\"318\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147.png 3343w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-300x159.png 300w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-1024x542.png 1024w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-768x407.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-1536x813.png 1536w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-2048x1084.png 2048w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-65x34.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-225x119.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-350x185.png 350w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\n<ol type=\"A\">\n<li>Both lights would come on<\/li>\n<li>The green light would come on, and the red light would go out<\/li>\n<li>Both lights would go out<\/li>\n<li>The red light would come on, and the green light would go out<\/li>\n<\/ol>\n<\/li>\n<li>During normal operation, a loud chattering noise is heard from the enclosure of an AC magnetic starter. What is the most likely cause?\n<ol type=\"A\">\n<li>Broken shading coil<\/li>\n<li>Open in the seal-in circuit<\/li>\n<li>Rust on pole faces<\/li>\n<li>Power contact is not making good contact due to poor pressure<\/li>\n<\/ol>\n<\/li>\n<li>If the control circuit shown below tripped due to overload, then which of the voltmeter positions shown would indicate line voltage?<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-914 size-large\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d1e75125eb-e1596745523842-1024x708.png\" alt=\"\" width=\"1024\" height=\"708\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d1e75125eb-e1596745523842-1024x708.png 1024w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d1e75125eb-e1596745523842-300x208.png 300w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d1e75125eb-e1596745523842-768x531.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d1e75125eb-e1596745523842-1536x1062.png 1536w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d1e75125eb-e1596745523842-2048x1417.png 2048w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d1e75125eb-e1596745523842-65x45.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d1e75125eb-e1596745523842-225x156.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d1e75125eb-e1596745523842-350x242.png 350w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\n<ol>\n<li>VM A<\/li>\n<li>VM B<\/li>\n<li>VM C<\/li>\n<li>VM D<\/li>\n<\/ol>\n<\/li>\n<li>What is the minimum number of control circuit conductors required in Conduit A?<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-913 size-large aligncenter\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-1024x764.png\" alt=\"\" width=\"1024\" height=\"764\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-1024x764.png 1024w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-300x224.png 300w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-768x573.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-1536x1146.png 1536w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-2048x1527.png 2048w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-65x48.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-225x168.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0d245c87c8e-350x261.png 350w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\n<ol type=\"A\">\n<li>2 wires<\/li>\n<li>3 wires<\/li>\n<li>4 wires<\/li>\n<li>5 wires<\/li>\n<\/ol>\n<\/li>\n<li>An isolating switch can be used as a motor power circuit disconnect switch. True or false?<\/li>\n<\/ol>\n<p>Use the following image to answer questions 11 and 12.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-907\" src=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147.png\" alt=\"\" width=\"3343\" height=\"1770\" srcset=\"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147.png 3343w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-300x159.png 300w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-1024x542.png 1024w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-768x407.png 768w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-1536x813.png 1536w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-2048x1084.png 2048w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-65x34.png 65w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-225x119.png 225w, https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-content\/uploads\/sites\/887\/2020\/08\/file-5e0e752aa6b99-e1596736169147-350x185.png 350w\" sizes=\"auto, (max-width: 3343px) 100vw, 3343px\" \/><\/p>\n<ol start=\"11\">\n<li>If the motor starter in the drawing is energized and functioning properly, what should the voltage be across the normally open contact (M)?\n<ol type=\"A\">\n<li>Line voltage<\/li>\n<li>Zero voltage<\/li>\n<li>Half of line voltage<\/li>\n<li>Twice line voltage<\/li>\n<\/ol>\n<\/li>\n<li>If the motor starter in the drawing is energized and functioning properly, what should be the voltage across the N.C contact (M)?\n<ol type=\"A\">\n<li>Line voltage<\/li>\n<li>Zero voltage<\/li>\n<li>Half of line voltage<\/li>\n<li>Twice line voltage<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<h2>Answers<\/h2>\n<ol>\n<li>A<\/li>\n<li>C<\/li>\n<li>B<\/li>\n<li>3 and 6<\/li>\n<li>C<\/li>\n<li>D<\/li>\n<li>A<\/li>\n<li>?<\/li>\n<li>?<\/li>\n<li>False<\/li>\n<li>B<\/li>\n<li>A<\/li>\n<\/ol>\n","protected":false},"author":103,"menu_order":1,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"back-matter-type":[],"contributor":[],"license":[],"class_list":["post-897","back-matter","type-back-matter","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-json\/pressbooks\/v2\/back-matter\/897","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-json\/pressbooks\/v2\/back-matter"}],"about":[{"href":"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-json\/wp\/v2\/types\/back-matter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-json\/wp\/v2\/users\/103"}],"version-history":[{"count":4,"href":"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-json\/pressbooks\/v2\/back-matter\/897\/revisions"}],"predecessor-version":[{"id":916,"href":"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-json\/pressbooks\/v2\/back-matter\/897\/revisions\/916"}],"metadata":[{"href":"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-json\/pressbooks\/v2\/back-matter\/897\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-json\/wp\/v2\/media?parent=897"}],"wp:term":[{"taxonomy":"back-matter-type","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-json\/pressbooks\/v2\/back-matter-type?post=897"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-json\/wp\/v2\/contributor?post=897"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/basicmotorcontrol\/wp-json\/wp\/v2\/license?post=897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}