MGVCL Exam Paper (30-07-2021 Shift 2)

MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of the following is the largest windfarm located in India?

Mundra

Muppandal

Talcher

Vindhayachal

Mundra

Muppandal

Talcher

Vindhayachal

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MGVCL Exam Paper (30-07-2021 Shift 2)
A circuit breaker is rated 2500 A, 2000 MVA, 33 kV, 3 sec, 3-phase oil circuit breaker. Determine the breaking current.

35 kA

25 kA

2500 A

350 kA

35 kA

25 kA

2500 A

350 kA

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MGVCL Exam Paper (30-07-2021 Shift 2)
The operating time of an inverse definite minimum time (IDMT) overcurrent relay is proportional to the plug-setting multiplier (PSM) andproportional to the time-multiplier setting (TMS).

inversely, inversely

directly, inversely

inversely, directly

directly, directly

inversely, inversely

directly, inversely

inversely, directly

directly, directly

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MGVCL Exam Paper (30-07-2021 Shift 2)
If the velocity of electromagnetic wave in free space is 3 × 10⁸ m/s, then the velocity in a medium with εr of 4.5 and μr of 2 would be

27 × 10⁸ m/s

9 × 10⁸ m/s

1 × 10⁸ m/s

3 × 10⁸ m/s

27 × 10⁸ m/s

9 × 10⁸ m/s

1 × 10⁸ m/s

3 × 10⁸ m/s

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MGVCL Exam Paper (30-07-2021 Shift 2)
A wire pilot is generally economical for distances up to

75 km to 100 km

20 to 25 km

30 km to 60 km

10 km to 15 km

75 km to 100 km

20 to 25 km

30 km to 60 km

10 km to 15 km

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MGVCL Exam Paper (30-07-2021 Shift 2)
The voltage applied to a transformer primary is increased keeping V/f constant. With this, the core loss and the magnetizing current (Im)

decreases, increases

increases, remains constant

remains constant, decreases

increases, increases

decreases, increases

increases, remains constant

remains constant, decreases

increases, increases

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