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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 _____

CO
All of these
SO₂
NOx

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DGVCL Exam Paper (12-06-2016)
A relay used for protection of motors against overload is :

Thermal relay
Impedance relay
Electromagnetic attraction type
Buchholz's relay

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DGVCL Exam Paper (12-06-2016)
The rating of fuse wire is always expressed in _____

Ampere-volts
Ampere-hours
Amperes
kWh

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Equipment :
Rating Fuse : Ampere
Transformer : kVA
Alternator : kVA
Motor : kW/HP
Battery : ampere-hour

DGVCL Exam Paper (12-06-2016)
In a transmission line if booster transformers are to be used, preferred location will be

At the intermediate point
At the receiving end
Anywhere in the line
At the sending end

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DGVCL Exam Paper (12-06-2016)
The transformer works on the principle of:

Mutual induction
Mutual capacitance
All of these
None of these

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Transformer is static device.
two or more stationary electrical circuit mutually linked by magnetic circuit.
assumptions of ideal transformer:
1. there are no losses.
2. whole magnetic flux constant no leakage.
3. permeability of core is infinite.

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

Exciter
Conservator
Breather
Buchholz Relay

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Exciter is used in alternator for field supply.

MORE MCQ ON DGVCL Exam Paper (12-06-2016)

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