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DGVCL Exam Paper (12-06-2016)

DGVCL Exam Paper (12-06-2016)
The problematic pollutants in emission of coal based generating plants _____

All of these
CO
SO₂
NOx

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DGVCL Exam Paper (12-06-2016)
A Transformer _____

Changes AC to DC
Steps up or down DC Voltages & Current
Changes DC to AC
Steps up or down AC Voltages & Current

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DGVCL Exam Paper (12-06-2016)
_____ electric power is the most common method used by electrical grids to transfer power

Three-phase
None of these
One-phase
Two-phase

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

All of these
The tariff must be equitable amongst different consumers
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)
The permissible voltage variation in transmission and distribution system is:

± 1%
± 0.1%
± 25%
±10%

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This answer is as per official key of respective exam.

DGVCL Exam Paper (12-06-2016)
Reactance relay is used for protection against:

None of these
Over voltage fault
Earth fault
Phase fault

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