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)
An AC series circuit has R = 6 Ω, XL = 20 Ω and Xc = 12 Ω. The ciruit power factor will be

0.8 lagging

0.6 leading

0.5 leading

0.6 lagging

0.8 lagging

0.6 leading

0.5 leading

0.6 lagging

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DGVCL Exam Paper (11-12-2011)
In a power plant, a reserve generating capacity which is not in service but is in operation is known as

Firm power

Spinning reserve

Cold reserve

Hot reserve

Firm power

Spinning reserve

Cold reserve

Hot reserve

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DGVCL Exam Paper (11-12-2011)
Transposition of transmission line is done to

Reduce line loss

Reduce skin effect

Reduce corona

Balance line voltage drop

Reduce line loss

Reduce skin effect

Reduce corona

Balance line voltage drop

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

Split phase motor

Capacitor start motor

Capacitor start capacitor run motor

Universal motor

Split phase motor

Capacitor start motor

Capacitor start capacitor run motor

Universal motor

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DGVCL Exam Paper (11-12-2011)
Which of the following power distribution system gives better reliabity ?

DC 3 wire system

Ring main system

Radial system

None of these

DC 3 wire system

Ring main system

Radial system

None of these

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DGVCL Exam Paper (11-12-2011)
Distribution transformers have good all day efficiency due to

Low copper as well as iron loss

Low iron loss

Low copper loss

Low voltage

Low copper as well as iron loss

Low iron loss

Low copper loss

Low voltage

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DGVCL Exam Paper (11-12-2011)

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

DGVCL Exam Paper (11-12-2011) Transposition of transmission line is done to

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

DGVCL Exam Paper (11-12-2011) Which of the following power distribution system gives better reliabity ?

DGVCL Exam Paper (11-12-2011) Distribution transformers have good all day efficiency due to

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

DGVCL Exam Paper (11-12-2011)
Transposition of transmission line is done to

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

DGVCL Exam Paper (11-12-2011)
Which of the following power distribution system gives better reliabity ?

DGVCL Exam Paper (11-12-2011)
Distribution transformers have good all day efficiency due to