What type of insulator is used if the direction of the transmission line is to be changed?

DGVCL Exam Paper (11-12-2011)
What type of insulator is used if the direction of the transmission line is to be changed?

Suspebsion type

Strain type

Shakle type

Pin type

Suspebsion type

Strain type

Shakle type

Pin type

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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?

Reluctance motor

Induction motor

Synchronous motor

Universal motor

Reluctance motor

Induction motor

Synchronous motor

Universal motor

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)
The advantage of slipring induction motor over the squirrel cage induction motor is

It can be started with the help of rotor resistances

It's power factor is higher

It is suitable for higher speeds

It has a higher efficiency

It can be started with the help of rotor resistances

It's power factor is higher

It is suitable for higher speeds

It has a higher efficiency

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)
The efficiency of a transformer at full load, 0.8 p.f. lag is 90%. Its efficiency at full load, 0.8 p.f. lead will be

90 %

Less than 90%

More than 90%

80 %

90 %

Less than 90%

More than 90%

80 %

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)
If the fault current is 2000 A, the relay plug setting is 50% and the CT ratio is 400/5, the plug setting multiple will be

25

10

50

15

25

10

50

15

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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

Open circuit breaker-open isolator-close earthing switch

Open isolator close circuit breaker-open earthing switch

Close circuit breaker-close isolator - open earthing switch

Close earthing switch - open ciruit- breaker-open islotor

Open circuit breaker-open isolator-close earthing switch

Open isolator close circuit breaker-open earthing switch

Close circuit breaker-close isolator - open earthing switch

ANSWER DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011) What type of insulator is used if the direction of the transmission line is to be changed?

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) The advantage of slipring induction motor over the squirrel cage induction motor is

DGVCL Exam Paper (11-12-2011) The efficiency of a transformer at full load, 0.8 p.f. lag is 90%. Its efficiency at full load, 0.8 p.f. lead will be

DGVCL Exam Paper (11-12-2011) If the fault current is 2000 A, the relay plug setting is 50% and the CT ratio is 400/5, the plug setting multiple will be

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)
What type of insulator is used if the direction of the transmission line is to be changed?

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)
The advantage of slipring induction motor over the squirrel cage induction motor is

DGVCL Exam Paper (11-12-2011)
The efficiency of a transformer at full load, 0.8 p.f. lag is 90%. Its efficiency at full load, 0.8 p.f. lead will be

DGVCL Exam Paper (11-12-2011)
If the fault current is 2000 A, the relay plug setting is 50% and the CT ratio is 400/5, the plug setting multiple will be

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?