MGVCL Exam Paper (30-07-2021 Shift 1)
Recently, Dr. Subir Vithal Gokarn passed away due to illness. He is a/an ___

Former Finance Minister
Former RBI Deputy Governor
Former Chief Minister of Gujarat
Former IAS Officer

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MGVCL Exam Paper (30-07-2021 Shift 1)
In underground cables, the electrostatic stress is ___ at contactor surface and ___ at the sheath.

zero, zero
minimum, maximum
minimum, maximum
zero, minimum

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MGVCL Exam Paper (30-07-2021 Shift 1)
Determine the ohmic value of the current limiting reactor per phase external to a 30 MVA, 11 kV, 50 Hz, three phase synchronous generator which can limit the current on short circuit of 5 times the full load current. The reactance of the synchronous generator is 0.05 pu.

0.805 Ω
0.605 Ω
0.405 Ω
0.305 Ω

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MGVCL Exam Paper (30-07-2021 Shift 1)
___ is the rms value of the total current comprising the AC and DC components of the current in the circuit breaker pole at the instant of contact separation.

Making current
Symmetrical short circuit current
Asymmetrical breaking current
Symmetrical breaking current

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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?

32.7 m
327 m
3.27 m
0.327 m

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