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)
Which one of these is not a monitoring and diagnostic test for transformer oil?

Dissolved Gas Analysis
Furanic Compound Analysis
Dissolved Metals Analysis
Volatility Level Analysis

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MGVCL Exam Paper (30-07-2021 Shift 2)
In a power network, 400 kV is recorded at a 415 kV bus. A 50 MVAR, 415 kV shunt reactor is connected to the bus. What is the reactive power absorbed by the shunt reactor?

66.45 MVAR
76.45 MVAR
56.45 MVAR
46.45 MVAR

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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
limit the main CT secondary current
increase the sensitivity of the relay
minimize the effect of saturation of the main CTs

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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
બધા જ કર્તરી વાક્ય પ્રયોગના છે
કુલ 1
કુલ 2

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