MGVCL Exam Paper (30-07-2021 Shift 2)
A THHN conductor will have a 60˚C termination on one end and a 75˚C termination on the other, which ampacity column will be used?

60˚C column
75˚C column
90˚C column
None of these

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

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

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

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MGVCL Exam Paper (30-07-2021 Shift 2)
A given solar cell has the following specifications:
Open-circuit voltage, Voc: 0.7 V
Short-circuit current, Isc: 3 A
Voltage at maximum power, Vmp: 0.5 V
Current at maximum power, Imp : 2.65 A
Calculate the fill factor.

0.63
1.23
1.58
0.81

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MGVCL Exam Paper (30-07-2021 Shift 2)
A 3-phase motor load has a p.f. of 0.397 lagging. The two wattmeter method used to measure power show the input as 30 kW. Find the reading on each wattmeter.

W1 = -10 kW and W2 = 40 kW
W1 = -5 kW and W2 = 35 kW
W1 = 10 kW and W2 = 20 kW
W1 = 5 kW and W2 = 25 kW

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