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

Cold reserve

Spinning reserve

Firm power

Hot reserve

Cold reserve

Spinning reserve

Firm power

Hot reserve

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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

Less than 90%

90 %

80 %

More than 90%

Less than 90%

90 %

80 %

More than 90%

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

Low voltage

Low copper loss

Low iron loss

Low copper as well as iron loss

Low voltage

Low copper loss

Low iron loss

Low copper as well as iron loss

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DGVCL Exam Paper (11-12-2011)
The effect of electric shock on the human body depends on

All of these

Current

Voltage

Duration of contact

All of these

Current

Voltage

Duration of contact

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DGVCL Exam Paper (11-12-2011)
Which lightning stroke is most dangerous?

Direct stroke on line conductor

Indirect stroke on conductor

Direct stroke on ground wire

Direct stoke on tower top

Direct stroke on line conductor

Indirect stroke on conductor

Direct stroke on ground wire

Direct stoke on tower top

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DGVCL Exam Paper (11-12-2011)
Hysteresis in an instrument means

The change in the same reading when the input is first increased and then decreased

The reliability of the instrument

The inaccuracy due to change in temperature

The repeatability of the instrument

The change in the same reading when the input is first increased and then decreased

The reliability of the instrument

The inaccuracy due to change in temperature

The repeatability of the instrument

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DGVCL Exam Paper (11-12-2011)

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) 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) Distribution transformers have good all day efficiency due to

DGVCL Exam Paper (11-12-2011) The effect of electric shock on the human body depends on

DGVCL Exam Paper (11-12-2011) Which lightning stroke is most dangerous?

DGVCL Exam Paper (11-12-2011) Hysteresis in an instrument means

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)
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)
Distribution transformers have good all day efficiency due to

DGVCL Exam Paper (11-12-2011)
The effect of electric shock on the human body depends on

DGVCL Exam Paper (11-12-2011)
Which lightning stroke is most dangerous?

DGVCL Exam Paper (11-12-2011)
Hysteresis in an instrument means