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

Extinguish

Decrease in size

Increase in size

Restrike

Extinguish

Decrease in size

Increase in size

Restrike

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DGVCL Exam Paper (11-12-2011)
If the percentage reactance of the system upto the point of fault is 20% and the base kVA is 10,000 the short ciruit kVA is

20 MVA

50 MVA

10 MVA

60 MVA

20 MVA

50 MVA

10 MVA

60 MVA

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)
A 3 phase, 6 pole induction motor operates on 440 V, 50 Hz, supply. If the actual speed of the motor is 960 rpm the slip will be

5 %

4 %

6 %

0.4 %

5 %

4 %

6 %

0.4 %

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DGVCL Exam Paper (11-12-2011)
The purpose of embedding the damper winding in the pole face of a synchronous motor is to

Reduce winding losses

Reduce bearing friction

Eliminate hunting and provide adequate starting torque

Eliminate losses on account of fair friction

Reduce winding losses

Reduce bearing friction

Eliminate hunting and provide adequate starting torque

Eliminate losses on account of fair friction

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DGVCL Exam Paper (11-12-2011)
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 cuttent characteristic

An inverse time current characteristic

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

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 cuttent characteristic

An inverse time current characteristic

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

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DGVCL Exam Paper (11-12-2011)
An AC series circuit has R = 6 Ω, XL = 20 Ω and Xc = 12 Ω. The ciruit power factor will be

0.6 lagging

0.5 leading

0.6 leading

0.8 lagging

0.6 lagging

0.5 leading

0.6 leading

0.8 lagging

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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) If the percentage reactance of the system upto the point of fault is 20% and the base kVA is 10,000 the short ciruit kVA is

DGVCL Exam Paper (11-12-2011) A 3 phase, 6 pole induction motor operates on 440 V, 50 Hz, supply. If the actual speed of the motor is 960 rpm the slip will be

DGVCL Exam Paper (11-12-2011) The purpose of embedding the damper winding in the pole face of a synchronous motor is to

DGVCL Exam Paper (11-12-2011) An IDMT relay provides

DGVCL Exam Paper (11-12-2011) An AC series circuit has R = 6 Ω, XL = 20 Ω and Xc = 12 Ω. The ciruit power factor will be

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)
If the percentage reactance of the system upto the point of fault is 20% and the base kVA is 10,000 the short ciruit kVA is

DGVCL Exam Paper (11-12-2011)
A 3 phase, 6 pole induction motor operates on 440 V, 50 Hz, supply. If the actual speed of the motor is 960 rpm the slip will be

DGVCL Exam Paper (11-12-2011)
The purpose of embedding the damper winding in the pole face of a synchronous motor is to

DGVCL Exam Paper (11-12-2011)
An IDMT relay provides

DGVCL Exam Paper (11-12-2011)
An AC series circuit has R = 6 Ω, XL = 20 Ω and Xc = 12 Ω. The ciruit power factor will be