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DGVCL EXAM PAPER (12-06-2016)

DGVCL Exam Paper (12-06-2016)
The voltage of transmission can be regulated by

Use of capacitors to neutralize the effect of series reactance
Switching in shunt capacitors at the receiving end during heavy loads
Use of tap changing transformers
Any of the above methods

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DGVCL Exam Paper (12-06-2016)
Which of the following circuit breakers has high reliability & minimum maintenance?

Air blast CB
Bulk oil type CB
Vacuum CB
Sulphur hexafluoride CB

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DGVCL Exam Paper (12-06-2016)
True value has been 50 whereas measured value is 40 then the percentage error in the reading will be _____

0.5
0.2
0.4
0.3

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%error = 100 * (actual - measured )/ actual

DGVCL Exam Paper (12-06-2016)
The overall efficiency of Thermal Power Plant is equal to _____

Regenerative Cycle Efficiency
Renkine Cycle Efficiency
None of these
Carnot cycle efficiency

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Product of boiler efficiency, turbine efficiency and generator efficiency.

DGVCL Exam Paper (12-06-2016)
Which of the following is not a part of transformer installation?

Breather
Exciter
Buchholz Relay
Conservator

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Exciter is used in alternator for field supply.

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