DGVCL EXAM PAPER (11-12-2011) QUIZ

The corona effect can be minimized by increasing

Both spacing between the conductors and diameter of the conductor

Spacing between the conductors

The length of the conductor

Diameter of the conductor

TRUE ANSWER : ?
YOUR ANSWER : ?

A fuse is inserted in

Earth continuity conductor

Neutral wire

Both phased and neutral wire

Phase wire

TRUE ANSWER : ?
YOUR ANSWER : ?

Different computers are connected to a LAN by a cable and a

Telephone line

Special wires

Interface card

Modem

TRUE ANSWER : ?
YOUR ANSWER : ?

Bulk power transmission over long HVDC lines are preferred on account of

Low cost of HVDC terminals

No harmonic problems

Minimum line power losses

Simple protection

TRUE ANSWER : ?
YOUR ANSWER : ?

An IDMT relay provides

An inverse characteristic for low values of the fault current and a definite time characteristic for high values of the fault current

A definite time characteristic for low values of the failt current and an inverse characteristic for high values of the fault current

An inverse time current characteristic

A definite time cuttent characteristic

TRUE ANSWER : ?
YOUR ANSWER : ?

Which motor is used to start heavy loads?

Series motor

Shunt motor

Cumulatively compounded motor

Differentially compounded motor

TRUE ANSWER : ?
YOUR ANSWER : ?

The motor used in celling fans is

Capacitor start capacitor run motor

Universal motor

Capacitor start motor

Split phase motor

TRUE ANSWER : ?
YOUR ANSWER : ?

If the excitation of a synchronous generator fails, it acts as a

Synchronous generator

Synchronous motor

Induction motor

Induction generator

TRUE ANSWER : ?
YOUR ANSWER : ?

In which of the following motors, the stator and rotor magnetic fields rotate at the same speed?

Synchronous motor

Reluctance motor

Induction motor

Universal motor

TRUE ANSWER : ?
YOUR ANSWER : ?

In a power plant, a reserve generating capacity which is not in service but is in operation is known as

Hot reserve

Firm power

Cold reserve

Spinning reserve

TRUE ANSWER : ?
YOUR ANSWER : ?