DGVCL Exam Paper (12-06-2016)
As per Electricity Act, _____ means a process which simultaneously produces two or more forms of useful energy (including electricity).

Power generation
Captive Power Plant
Cogeneration
None of these

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DGVCL Exam Paper (12-06-2016)
What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage:

Current will be too much high
Eddy Current and Hysteresis losses will be excessive
No effect
Transformer may start to smoke and burn

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DGVCL Exam Paper (12-06-2016)
A Step Up transformer :

Step up the level of Frequency
Steps up the level of Voltage
(a) and (b) only
Steps down the level of current

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