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Wireman
DC MOTORS
Set 6
Set 6
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Q13801
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Which motor is used for traction purpose?
A
DC shunt motor
B
DC compound motor
C
DC series motor
D
Capacitor motor
Q13802
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Which motor is used for grinders and polishers?
A
DC series motor
B
DC shunt motor
C
Differential compound motor
D
Cumulative compound motor
Q13803
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Which instrument is used to measure insulation resistance of DC motor?
A
Earth tester
B
Megger
C
Voltmeter
D
Ammeter
Q13804
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Which is the major reason for open circuit in armature circuit of DC machine?
A
Over voltage
B
Low voltage
C
Over load
D
Loose commulator segments
Q13805
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Which test is conducted to determine the winding earth leakage of a DC motor?
A
Continuity test
B
Ground test
C
Short circuit test
D
Open circuit test
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