If the dielectric strength of the medium between the contacts builds up more rapidly than the restriking voltage the arc will

DGVCL Exam Paper (11-12-2011)
If the dielectric strength of the medium between the contacts builds up more rapidly than the restriking voltage the arc will

Increase in size

Decrease in size

Extinguish

Restrike

Increase in size

Decrease in size

Extinguish

Restrike

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DGVCL Exam Paper (11-12-2011)
Which of the following power distribution system gives better reliabity ?

Radial system

DC 3 wire system

Ring main system

None of these

Radial system

DC 3 wire system

Ring main system

None of these

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DGVCL Exam Paper (11-12-2011)
The motor used in celling fans is

Universal motor

Capacitor start capacitor run motor

Split phase motor

Capacitor start motor

Universal motor

Capacitor start capacitor run motor

Split phase motor

Capacitor start motor

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DGVCL Exam Paper (11-12-2011)
Distribution transformers have good all day efficiency due to

Low copper loss

Low iron loss

Low copper as well as iron loss

Low voltage

Low copper loss

Low iron loss

Low copper as well as iron loss

Low voltage

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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 isolator close circuit breaker-open earthing switch

Open circuit breaker-open isolator-close earthing switch

Close earthing switch - open ciruit- breaker-open islotor

Close circuit breaker-close isolator - open earthing switch

Open isolator close circuit breaker-open earthing switch

Open circuit breaker-open isolator-close earthing switch

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DGVCL Exam Paper (11-12-2011)
Under operating conditions, the secondary of a current transformer is always short ciruited because

It protects the primary ciruits

It avoids core saturation and high voltage induction

It is safe to human beings

It protects the secondary ciruits

It protects the primary ciruits

It avoids core saturation and high voltage induction

It is safe to human beings

It protects the secondary ciruits

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DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011) If the dielectric strength of the medium between the contacts builds up more rapidly than the restriking voltage the arc will

DGVCL Exam Paper (11-12-2011) Which of the following power distribution system gives better reliabity ?

DGVCL Exam Paper (11-12-2011) The motor used in celling fans is

DGVCL Exam Paper (11-12-2011) Distribution transformers have good all day efficiency due to

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) Under operating conditions, the secondary of a current transformer is always short ciruited because

DGVCL Exam Paper (11-12-2011)
If the dielectric strength of the medium between the contacts builds up more rapidly than the restriking voltage the arc will

DGVCL Exam Paper (11-12-2011)
Which of the following power distribution system gives better reliabity ?

DGVCL Exam Paper (11-12-2011)
The motor used in celling fans is

DGVCL Exam Paper (11-12-2011)
Distribution transformers have good all day efficiency due to

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)
Under operating conditions, the secondary of a current transformer is always short ciruited because