MGVCL Exam Paper (30-07-2021 Shift 3)

MGVCL Exam Paper (30-07-2021 Shift 3)
Find the word which is correctly spelt from the given options.

Profitable

Idantical

Clasification

Dimnished

Profitable

Idantical

Clasification

Dimnished

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MGVCL Exam Paper (30-07-2021 Shift 3)
The sending end and receiving end voltages of the short transmission line are 150 kV and 120 kV respectively. Calculate its percentage voltage regulation.

20%

30%

25%

40%

20%

30%

25%

40%

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MGVCL Exam Paper (30-07-2021 Shift 3)
A 10-pole induction motor is supplied by a 6-pole alternator, which is driven at 1400 rpm. If the motor runs with a slip of 5%, what is its speed?

1575 rpm

1425 rpm

882 rpm

798 rpm

1575 rpm

1425 rpm

882 rpm

798 rpm

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MGVCL Exam Paper (30-07-2021 Shift 3)
In transformer testing, Sweep Frequency Response Analysis (SFRA) testing is a tool to help locate ____

Winding damage

Short circuits

Core movement

All of these

Winding damage

Short circuits

Core movement

All of these

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MGVCL Exam Paper (30-07-2021 Shift 3)
If the velocity of wind is doubled then the power output will

increase by 8 times

doubled

increase by 6 times

reduced to half

increase by 8 times

doubled

increase by 6 times

reduced to half

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MGVCL Exam Paper (30-07-2021 Shift 3)
A conductor having surface density is embedded in a dielectric medium of permittivity. The electric field in the medium is E. If it is known that the pressure p on the conductor surface is equal to the electric energy density in the medium, then p (in SI unit)is given by

σ²/(2πε)

σ²/(4π)

σ/(4πε)

σ²/(2ε)

σ²/(2πε)

σ²/(4π)

σ/(4πε)

σ²/(2ε)

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