DGVCL Exam Paper (12-06-2016)
The main objectives in framing tariff are:

The tariff must be equitable amongst different consumers
All of these
Tariffs can be modified from time to time
The consumers must readily understand the tariffs

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DGVCL Exam Paper (12-06-2016)
Step-down transformer converts high voltage and low current into:

Low voltage and high current
How voltage and high current
High voltage and low current
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:

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

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