MGVCL Exam Paper (30-07-2021 Shift 2)
In circuit breaker, the term MCCB stands for

moulded case circuit breaker
modern closed circuit breaker
miniature case circuit breaker
miniature compact circuit breaker

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MGVCL Exam Paper (30-07-2021 Shift 2)
The wind speed increases with height because of

enhancement of drag effect on the earth surface
reduction in the gravitational force
reduction in lift effect of the air
reduction of drag effect of the earth surface

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

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