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

Restrike

Increase in size

Decrease in size

Extinguish

Restrike

Increase in size

Decrease in size

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DGVCL Exam Paper (11-12-2011)
The mutual inductance between two unity coupled coils of 9 H and 4 H is

2.2 H

13 H

6 H

36 H

2.2 H

13 H

6 H

36 H

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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

0.6 leading

0.5 leading

0.8 lagging

0.6 lagging

0.6 leading

0.5 leading

0.8 lagging

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DGVCL Exam Paper (11-12-2011)
DC series motors are best suited for traction work because

Its torque is proportional to the square of the armature current and speed is inversely proportional to torque

Torque and speed are inversely proportional to the square of the armature current

Torque and speed are proportional to the square of the armature current

Its torque is proportional to the square of the armature current and speed is directional proporational to torque

Its torque is proportional to the square of the armature current and speed is inversely proportional to torque

Torque and speed are inversely proportional to the square of the armature current

Torque and speed are proportional to the square of the armature current

Its torque is proportional to the square of the armature current and speed is directional proporational to torque

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)
The advantage of slipring induction motor over the squirrel cage induction motor is

It is suitable for higher speeds

It's power factor is higher

It has a higher efficiency

It can be started with the help of rotor resistances

It is suitable for higher speeds

It's power factor is higher

It has a higher efficiency

It can be started with the help of rotor resistances

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DGVCL Exam Paper (11-12-2011)
First zone distance relay protects the transmission line section upto

Its full length

50 % of its full length

80 % of its full length

25 % of its full length

Its full length

50 % of its full length

80 % of its full length

25 % of its full length

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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) The mutual inductance between two unity coupled coils of 9 H and 4 H is

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) DC series motors are best suited for traction work because

DGVCL Exam Paper (11-12-2011) The advantage of slipring induction motor over the squirrel cage induction motor is

DGVCL Exam Paper (11-12-2011) First zone distance relay protects the transmission line section upto

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)
The mutual inductance between two unity coupled coils of 9 H and 4 H is

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)
DC series motors are best suited for traction work because

DGVCL Exam Paper (11-12-2011)
The advantage of slipring induction motor over the squirrel cage induction motor is

DGVCL Exam Paper (11-12-2011)
First zone distance relay protects the transmission line section upto