MGVCL Exam Paper (30-07-2021 Shift 2)
If no load is connected to solar PV system,

its voltage will go on increasing till its breakdown
it will dissipate energy in the panel and increase its temperature
it will stop absorbing light
it will start reflecting the light

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MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of the following statement is TRUE?

Underground cables are laid at sufficient depth to avoid being unearthed easily due to removal of soil.
In the cables, the location of fault is usually found out by comparing the capacitances of insulated conductors.
In the cables, sheaths are used to provide enough strength.
The current carrying capacity of cables in DC is less than that in AC.

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MGVCL Exam Paper (30-07-2021 Shift 2)
The miniature circuit breaker (MCB) with Class D trip characteristics trips instantaneously when the current flowing through it reaches ____ the rated current.

between 5 to 10 times
between 10 to 20 times
between 3 to 5 times
between 2 to 3 times

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MGVCL Exam Paper (30-07-2021 Shift 2)
The magnitude of the generator earth-fault current is limited by

controlling field exciter
using higher rating CTs
inserting the stabilizing resistance in series with the relay
inserting suitable resistance in neutral grounding circuit

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