MGVCL Exam Paper (30-07-2021 Shift 1)
Two-wattmeter method is used to measure the power taken by a 3-phase induction motor on no load. The wattmeter readings are 375 W and –50 W. Calculate the reactive power taken by the load.

425√3 VAR
425/√3 VAR
325√3 VAR
325/√3 VAR

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MGVCL Exam Paper (30-07-2021 Shift 1)
A grid interactive solar system:

works only when the grid fails
always supplies power to the grid
supplies power to as well as receives power from the grid as required
always receives power from the grid

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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)
As per ___ guidelines, if the ratio of carbon dioxide (CO₂) and carbon monoxide (CO) in dissolved gas analysis is ___, it is predicted that the condition of paper insulation inside the transformer is poor.

IEC-899, more than 11
IEC-599, more than 11
IEC-899, less than 11
IEC-599, less than 11

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