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DC MOTORS

DC Motors
The armature voltage control of dc motor provides

Constant voltage drive
Constant current drive
Constant torque drive
None of the listed here

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DC Motors
The variable resistor shunting the field of a dc series motor is called a

Armature divertor
Potential divider
Voltage regulator
Field divertor

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DC Motors
The maximum end play of a motor is about

10 mm
2 mm
0.4 mm
6 mm

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DC Motors
In which of the following tests only one motor is required?

Brake test
Hopkinson's test
Swinburne's test
Field's test

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DC Motors
No load speed of which of the following motor will be highest?

Differentially compounded motor
Series motor
Cummulative compounded motor
Shunt motor

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