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

Decrease in size

Restrike

Extinguish

Increase in size

Decrease in size

Restrike

Extinguish

Increase in size

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DGVCL Exam Paper (11-12-2011)
The transient stability of a power system can be improved by

Excitation control

Phase shifting transformer

Increasing the turbine valve opening

Single pole switching of circuit breakers

Excitation control

Phase shifting transformer

Increasing the turbine valve opening

Single pole switching of circuit breakers

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DGVCL Exam Paper (11-12-2011)
The corona effect can be minimized by increasing

Spacing between the conductors

The length of the conductor

Diameter of the conductor

Both spacing between the conductors and diameter of the conductor

Spacing between the conductors

The length of the conductor

Diameter of the conductor

Both spacing between the conductors and diameter of the conductor

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DGVCL Exam Paper (11-12-2011)
Two parallel conductors are carrying the current in the same direction. Which of the following statements is correct?

There is an attracting force between the conductors

The force increases when the distance between the conductors is decreased

There is a repelling force between the conductors

The force increases when the distance between the conductors is increased

There is an attracting force between the conductors

The force increases when the distance between the conductors is decreased

There is a repelling force between the conductors

The force increases when the distance between the conductors is increased

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DGVCL Exam Paper (11-12-2011)
The purpose of skewing of rotor slots in an induction motor is

To increase the breadth factor

To reduce the locking tendency of the rotor

To reduce the magnetic hum of the motor

To increase the distributuion factor

To increase the breadth factor

To reduce the locking tendency of the rotor

To reduce the magnetic hum of the motor

To increase the distributuion factor

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

None of these

Radial system

Ring main system

DC 3 wire system

None of these

Radial system

Ring main system

DC 3 wire system

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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) The transient stability of a power system can be improved by

DGVCL Exam Paper (11-12-2011) The corona effect can be minimized by increasing

DGVCL Exam Paper (11-12-2011) Two parallel conductors are carrying the current in the same direction. Which of the following statements is correct?

DGVCL Exam Paper (11-12-2011) The purpose of skewing of rotor slots in an induction motor is

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

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)
The transient stability of a power system can be improved by

DGVCL Exam Paper (11-12-2011)
The corona effect can be minimized by increasing

DGVCL Exam Paper (11-12-2011)
Two parallel conductors are carrying the current in the same direction. Which of the following statements is correct?

DGVCL Exam Paper (11-12-2011)
The purpose of skewing of rotor slots in an induction motor is

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