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DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011)
A fuse is inserted in

Both phased and neutral wire
Neutral wire
Earth continuity conductor
Phase wire

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DGVCL Exam Paper (11-12-2011)
Which motor is used to start heavy loads?

Differentially compounded motor
Cumulatively compounded motor
Series motor
Shunt motor

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Torque in d.c motor = k* φ * Ia
In series motor φ α Ia
Tα I²
starting torque of dc series motor is high

DGVCL Exam Paper (11-12-2011)
The picture on the monitor of a computer is made up of tiny coloured dots called

Pixels
Icons
Points
Spots

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DGVCL Exam Paper (11-12-2011)
If the excitation of a synchronous generator fails, it acts as a

Induction generator
Synchronous motor
Synchronous generator
Induction motor

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if excitation of synchronous generator fails, operate as induction motor

DGVCL Exam Paper (11-12-2011)
The circuit breaker generally used in railway traction is

Air break CB
Vacuum CB
Minimum Oil CB
Bulk Oil CB

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DGVCL Exam Paper (11-12-2011)
People can interact with each other through any part of the world through video conferencing using

Joystick
Webcam
Scanner
Speaker

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