MGVCL Exam Paper (30-07-2021 Shift 2)
Operating system is

a program that runs during log off
a program that runs for short duration
a program that runs during log off
a layer between the user and the hardware

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MGVCL Exam Paper (30-07-2021 Shift 2)
A three-phase 400 V, 6-pole, 50 Hz squirrel-cage induction motor is running at a slip of 5%. The speed of rotor with respect to stator magnetic field and speed of the stator magnetic field with respect to rotor magnetic field are

950 rpm, zero
950 rpm, 1000 rpm
-50 rpm, zero
-50 rpm, 1000 rpm

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

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

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MGVCL Exam Paper (30-07-2021 Shift 2)
In a typical DC micro grid, hybrid storage system is a combination of

Lead acid battery and Capacitor
None of these
Lead acid battery and ultra capacitor / super capacitor
Lead acid battery and Lithium ion battery

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