At time t= 0+ , with zero initial condition, which of the following acts as a short circuit?

DGVCL Exam Paper (11-12-2011)
At time t= 0+ , with zero initial condition, which of the following acts as a short circuit?

Resistor

Voltage source

Capacitor

Conductor

Resistor

Voltage source

Capacitor

Conductor

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DGVCL Exam Paper (11-12-2011)
In which of the following motors, the stator and rotor magnetic fields rotate at the same speed?

Synchronous motor

Universal motor

Reluctance motor

Induction motor

Synchronous motor

Universal motor

Reluctance motor

Induction motor

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DGVCL Exam Paper (11-12-2011)
Which of the following correctly represents the sequence of operations of isolator, circiut breaker and earthing switch while opening a circuit?

Close earthing switch - open ciruit- breaker-open islotor

Close circuit breaker-close isolator - open earthing switch

Open circuit breaker-open isolator-close earthing switch

Open isolator close circuit breaker-open earthing switch

Close earthing switch - open ciruit- breaker-open islotor

Close circuit breaker-close isolator - open earthing switch

Open circuit breaker-open isolator-close earthing switch

Open isolator close circuit breaker-open earthing switch

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DGVCL Exam Paper (11-12-2011)
A fuse wire should have

High specific resistance and high melting point

High specific resistance and low melting point

Low specific resistance and high melting point

Low specific resistance and low melting point

High specific resistance and high melting point

High specific resistance and low melting point

Low specific resistance and high melting point

Low specific resistance and low melting point

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DGVCL Exam Paper (11-12-2011)
The effect of electric shock on the human body depends on

All of these

Current

Duration of contact

Voltage

All of these

Current

Duration of contact

Voltage

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DGVCL Exam Paper (11-12-2011)
The main advantage of using fractional pitch winding is to refuce

Amount of copper in the winding

Harmonics in the generated emf

Size of the machine

Cost of the machine

Amount of copper in the winding

Harmonics in the generated emf

Size of the machine

Cost of the machine

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DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011) At time t= 0+ , with zero initial condition, which of the following acts as a short circuit?

DGVCL Exam Paper (11-12-2011) In which of the following motors, the stator and rotor magnetic fields rotate at the same speed?

DGVCL Exam Paper (11-12-2011) Which of the following correctly represents the sequence of operations of isolator, circiut breaker and earthing switch while opening a circuit?

DGVCL Exam Paper (11-12-2011) A fuse wire should have

DGVCL Exam Paper (11-12-2011) The effect of electric shock on the human body depends on

DGVCL Exam Paper (11-12-2011) The main advantage of using fractional pitch winding is to refuce

DGVCL Exam Paper (11-12-2011)
At time t= 0+ , with zero initial condition, which of the following acts as a short circuit?

DGVCL Exam Paper (11-12-2011)
In which of the following motors, the stator and rotor magnetic fields rotate at the same speed?

DGVCL Exam Paper (11-12-2011)
Which of the following correctly represents the sequence of operations of isolator, circiut breaker and earthing switch while opening a circuit?

DGVCL Exam Paper (11-12-2011)
A fuse wire should have

DGVCL Exam Paper (11-12-2011)
The effect of electric shock on the human body depends on

DGVCL Exam Paper (11-12-2011)
The main advantage of using fractional pitch winding is to refuce