In carrier current protection, the purpose of the wave trap is for

DGVCL Exam Paper (11-12-2011)
In carrier current protection, the purpose of the wave trap is for

Trapping power frequency waves

Trapping high frequency waves entering into generator/transformer unit.

All of these

Tripping fault current

Trapping power frequency waves

Trapping high frequency waves entering into generator/transformer unit.

All of these

Tripping fault current

ANSWER DOWNLOAD EXAMIANS APP

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

Universal motor

Capacitor start motor

Capacitor start capacitor run motor

Split phase motor

Universal motor

Capacitor start motor

Capacitor start capacitor run motor

Split phase motor

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

80 %

90 %

More than 90%

Less than 90%

80 %

90 %

More than 90%

Less than 90%

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

Shakle type

Pin type

Suspebsion type

Strain type

Shakle type

Pin type

Suspebsion type

Strain type

ANSWER DOWNLOAD EXAMIANS APP

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

ANSWER DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)
In which of the following motors, the stator and rotor magnetic fields rotate at the same speed?

Induction motor

Synchronous motor

Reluctance motor

Universal motor

Induction motor

Synchronous motor

Reluctance motor

Universal motor

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011) In carrier current protection, the purpose of the wave trap is for

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

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

DGVCL Exam Paper (11-12-2011)
In carrier current protection, the purpose of the wave trap is for

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

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