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Wireman
DC MOTORS
Set 5
Set 5
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Q13796
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What is the function of protective resistor in DC four point starter
A
To limit current in holding coil
B
To limit armature current
C
To limit field current
D
To limit the speed
Q13797
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Which type of starter is used for DC series motor
A
DOL starter
B
Four point starter
C
Two point starter
D
Three point starter
Q13798
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Which method of speed control used in DC shunt motor to control the speed below normal?
A
Field control
B
Armature control
C
Field tapping method
D
Field diverter method
Q13799
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Which method of speed control used in DC motor to control the speed above normal
A
Field control
B
Armature control
C
Supply voltage control
D
Tapped field control
Q13800
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Which method of speed control used for variation of speed from zero to above normal?
A
Supply voltage
B
Armature control
C
Shunt field control
D
Ward-Leanard system
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