DGVCL EXAM PAPER (11-12-2011) QUIZ

To limit the current to an appropriate value

To eliminate corona effect

To improve the power factor

To avoid radio interference

Capacitor start motor

Split phase motor

Universal motor

Capacitor start capacitor run motor

There is an attracting force between the conductors

The force increases when the distance between the conductors is increased

There is a repelling force between the conductors

The force increases when the distance between the conductors is decreased

Lagging power factor

Leading power factor

Unity power factor

Depends on nature of load

Current is maximum and power factor is 0.5

Current is minimum and power factor is unity

Current is minimum and power factor is 0.5

Current is maximum and power factor is unity

Single line to ground faults

Phase to phase faults

Double line to ground faults

Three phase short ciruits

Earth continuity conductor

Neutral wire

Phase wire

Both phased and neutral wire

Low specific resistance and high melting point

High specific resistance and low melting point

High specific resistance and high melting point

Low specific resistance and low melting point

Breaker backup

Relay backup

Control backup

Remote backup

Directional restrained over voltage relay

Directional restrained over current relay

Voltage restrained directional relay

Voltage controlled over current relay