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.

Obecity

Abolishid

Syndrome

Seriuous

Obecity

Abolishid

Syndrome

Seriuous

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MGVCL Exam Paper (30-07-2021 Shift 3)
What are the main challenges that the electric grid faces?

Reliability and Power Quality is Declining

All of these

Increase in Energy Demand

Global rise in temperature

Reliability and Power Quality is Declining

All of these

Increase in Energy Demand

Global rise in temperature

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MGVCL Exam Paper (30-07-2021 Shift 3)
Consider the following statements associated with Buchholz’s relays.
Statement 1: Buchholz's relay is used for protection of a transformer against incipient faults.
Statement 2: Buchholz's relay can be installed on oil cooled transformers.

Both Statement 1 and Statement 2 are TRUE

Both Statement 1 and Statement 2 are FALSE

Statement 1 is TRUE and Statement 2 is FALSE

Statement 1 is FALSE and Statement 2 is TRUE

Both Statement 1 and Statement 2 are TRUE

Both Statement 1 and Statement 2 are FALSE

Statement 1 is TRUE and Statement 2 is FALSE

Statement 1 is FALSE and Statement 2 is TRUE

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MGVCL Exam Paper (30-07-2021 Shift 3)
A single phase full converter bridge, connected to 230 V, 50 Hz source is feeding a load R =10 Ω in series with a large inductance that makes the load current ripple free. For a firing angle of 450, calculate the rectification efficiency.

76.66%

63.66%

28.33%

50.55%

76.66%

63.66%

28.33%

50.55%

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MGVCL Exam Paper (30-07-2021 Shift 3)
A 3 pF capacitor is charged by a constant current of 2 pA for six seconds. The voltage across the capacitor at the end of charging will be

8 V

6 V

2 V

4 V

8 V

6 V

2 V

4 V

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MGVCL Exam Paper (30-07-2021 Shift 3)
A delta-connected balanced three-phase load is supplied from a three phase, 400 V supply. The line current is 20 Aand the power taken by the load is 10 kW. Find the power consumed if the same load is connected in star.

3.33 W

16.33 W

30 W

21.77 W

3.33 W

16.33 W

30 W

21.77 W

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