The insulation coordination for UHV lines (above 500 kV) is done based on

DGVCL Exam Paper (11-12-2011)
The insulation coordination for UHV lines (above 500 kV) is done based on

Switching surges

Lightning surges

Lightning and switching surges

Voltage level of the line

Switching surges

Lightning surges

Lightning and switching surges

Voltage level of the line

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DGVCL Exam Paper (11-12-2011)
If a 5 A fuse is blown frequently in a house lighting circuit, it is required to

Insert a fuse of higher current rating

Reduce the load

Insert a fuse of higher voltage rating

Check the load

Insert a fuse of higher current rating

Reduce the load

Insert a fuse of higher voltage rating

Check the load

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

Low copper loss

Low iron loss

Low voltage

Low copper as well as iron loss

Low copper loss

Low iron loss

Low voltage

Low copper as well as iron loss

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DGVCL Exam Paper (11-12-2011)
A device connected to the computer which converts digital signals to analog and vice-versa is

Keyboard

CPU

Modem

UPS

Keyboard

CPU

Modem

UPS

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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

None of these

Radial system

DC 3 wire system

Ring main system

None of these

Radial system

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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

90 %

More than 90%

Less than 90%

80 %

90 %

More than 90%

Less than 90%

80 %

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DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011) The insulation coordination for UHV lines (above 500 kV) is done based on

DGVCL Exam Paper (11-12-2011) If a 5 A fuse is blown frequently in a house lighting circuit, it is required to

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

DGVCL Exam Paper (11-12-2011) A device connected to the computer which converts digital signals to analog and vice-versa is

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

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)
The insulation coordination for UHV lines (above 500 kV) is done based on

DGVCL Exam Paper (11-12-2011)
If a 5 A fuse is blown frequently in a house lighting circuit, it is required to

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

DGVCL Exam Paper (11-12-2011)
A device connected to the computer which converts digital signals to analog and vice-versa is

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

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