MGVCL Exam Paper (30-07-2021 Shift 1)

MGVCL Exam Paper (30-07-2021 Shift 1)
The miniature circuit breaker (MCB) shown in figure is

four pole MCB

five pole MCB

three pole MCB

two pole MCB

four pole MCB

five pole MCB

three pole MCB

two pole MCB

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MGVCL Exam Paper (30-07-2021 Shift 1)
An RC series circuit with R = 150 Ω and C = 2 μF is excited by a DC source of 15 V by closing the switch at t = 0 with an initially uncharged capacitor. The initial and final voltages across the capacitor respectively are

0 V, 15 V

0 V, 10 V

10 V, 15 V

15 V, 10 V

0 V, 15 V

0 V, 10 V

10 V, 15 V

15 V, 10 V

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MGVCL Exam Paper (30-07-2021 Shift 1)
1 terabyte is equal to

1024 gigabytes

None of these

1024 bytes

1024 kilobytes

1024 gigabytes

None of these

1024 bytes

1024 kilobytes

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MGVCL Exam Paper (30-07-2021 Shift 1)
A transformer designed for operation at 60 Hz supply is working at 50 Hz supply system without changing its voltage and current ratings. Compared to the full load efficiency at 60 Hz, the full load transformer efficiency at 50 Hz.

decreases marginally

remains unaltered

increases by 30%

increases marginally

decreases marginally

remains unaltered

increases by 30%

increases marginally

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MGVCL Exam Paper (30-07-2021 Shift 1)
The operating time of an inverse definite minimum time (IDMT) overcurrent relay corresponding to plug-setting multiplier (PSM) = 1 and time-multiplier setting (TMS) = 1 will be

infinite

3 sec

zero

1 sec

infinite

3 sec

zero

1 sec

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MGVCL Exam Paper (30-07-2021 Shift 1)
The single line diagram of the simple system is shown in figure the corresponding reactance diagram is

B

A

C

D

B

A

C

D

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