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

Excitation control
Single pole switching of circuit breakers
Increasing the turbine valve opening
Phase shifting transformer

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

Capacitor start motor
Universal motor
Split phase motor
Capacitor start capacitor run motor

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DGVCL Exam Paper (11-12-2011)
A Mho relay is a

Directional restrained over voltage relay
Directional restrained over current relay
Voltage restrained directional relay
Voltage controlled over current relay

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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?

The force increases when the distance between the conductors is increased
The force increases when the distance between the conductors is decreased
There is a repelling force between the conductors
There is an attracting force between the conductors

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