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

a program that runs for short duration
a program that runs during log off
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)
Interposing current-transformer (CT) is used in differential protection of a transformer to

match the standard ratio of CTs used on both sides of the transformer winding
minimize the effect of saturation of the main CTs
increase the sensitivity of the relay
limit the main CT secondary current

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MGVCL Exam Paper (30-07-2021 Shift 2)
A single phase motor connected to 415 V, 50 Hz supply takes 30 A at a power factor of 0.7 lagging. Calculate the capacitance required in parallel with the motor to raise the power factor to 0.9 lagging.

96.32 µF
66.32 µF
86.32 µF
76.32 µF

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MGVCL Exam Paper (30-07-2021 Shift 2)
A coil having an inductance of 100 mH is magnetically coupled to another coil having an inductance of 900 mH. The coefficient of coupling between the coils is 0.45. Calculate the equivalent inductance if the two coils are connected in series opposing.

1270 mH
730 mH
932 mH
1135 mH

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MGVCL Exam Paper (30-07-2021 Shift 2)
1. આપને મુખ્યમત્રીએ ખાસ કામ માટે નિયુક્ત કર્યા છે.
2. તેનાથી આંખો ઝીણી કરાઈ
3. પ્રધાનમંત્રીએ સ્કુલનું ઉદ્રઘાટન કર્યું.
આરોપીએ બધા ગુના કબુલ કરી લીધા.
ઉક્ત વાક્યોમાં કેટલા કર્મણી વાક્યો પ્રયોગના છે?

બધા જ વાક્યો કર્મણી વાક્ય પ્રયોગના છે
કુલ 2
બધા જ કર્તરી વાક્ય પ્રયોગના છે
કુલ 1

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