MGVCL Exam Paper (30-07-2021 Shift 1)
What is the largest thermal power plant in India?

Mundra Thermal Power Station
Sasan Ultra Mega Power Plant
Talcher Super Thermal Power Station
Vindhyachal Thermal Power Station

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MGVCL Exam Paper (30-07-2021 Shift 1)
For sea water with σ = 5 mho/m and ε_r = 80, what is the distance for which ratio signal can be transmitted with 90% attenuation at 25 kHz?

0.327 m
32.7 m
3.27 m
327 m

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MGVCL Exam Paper (30-07-2021 Shift 1)
___ is the short time reduction in the rms voltage between 0.1 to 0.9 p.u for a duration of ___

Voltage sag, greater than 1 minute
Voltage swell, greater than 1 minute
Voltage sag, 0.5 cycle to 1 minute.
Voltage swell, 0.5 cycle to 1 minute.

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MGVCL Exam Paper (30-07-2021 Shift 1)
Insulation Power Factor testing on an oil-filled transformer is not helpful in determining ___

Turns ratio values
Movement of the windings (change in capacitance)
Condition of paper insulation (change in watts losses)
Whether the oil test indicates moisture

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MGVCL Exam Paper (30-07-2021 Shift 1)
A single phase motor connected to 400 V, 50 Hz supply takes 30 A at a power factor of 0.7 lagging. Calculate the capacitance required in parallel with the motor to raise the power factor to 0.9 lagging.

89.5 μF
99.5 μF
79.5 μF
69.5 μF

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