MGVCL Exam Paper (30-07-2021 Shift 1)
While selecting the gas for a circuit breaker, the property of gas that should be considered is its
(i) dielectric strength
(ii) non-inflammability
(iii) non-toxicity

(i), (ii) and (iii)
(i) and (iii) only
(i) only
(i) and (ii) only

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MGVCL Exam Paper (30-07-2021 Shift 1)
The normal percentage bias setting of differential relay used for transformer protection will be

below 10%
above 75%
between 50% and 75%
between 10% and 50%

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MGVCL Exam Paper (30-07-2021 Shift 1)
For protection of inter-turn fault in transformer, the relays preferred are

Overcurrent relay and differential relay
Buchholz's relay, overcurrent relay and differential relay
Buchholz's relay and differential relay
Overcurrent relay and Buchholz's relay

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MGVCL Exam Paper (30-07-2021 Shift 1)
A 16 A, Type B Miniature Circuit Breaker (MCB) will disconnect a fault in 0.1s when the fault current is

less than 16 A
between 48 A and 80 A
greater than 32 A
less than 16 A

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MORE MCQ ON MGVCL Exam Paper (30-07-2021 Shift 1)