MGVCL Exam Paper (30-07-2021 Shift 2)
હુ ગીત ગાઈશ' ને કર્મણીમાં ફેરવો.

હુ ગીતને ગાઈશ
મારાથી ગીત ગવાશે
ગીતને હુ જ ગાઇશ
ગીતને હુ ગાઈશ

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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.

0.81
0.63
1.58
1.23

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MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of the following statement is TRUE?

In the cables, sheaths are used to provide enough strength.
In the cables, the location of fault is usually found out by comparing the capacitances of insulated conductors.
Underground cables are laid at sufficient depth to avoid being unearthed easily due to removal of soil.
The current carrying capacity of cables in DC is less than that in AC.

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MGVCL Exam Paper (30-07-2021 Shift 2)
A 50 Hz synchronous generator is connected to an infinite bus through a line. The p.u. reactances of generator and the line are j0.3 p.u. and j0.2 p.u. respectively. The generator no load voltage is 1.1 p.u. and that of infinite bus is 1.0 p.u. The inertia constant of the generator is 4 MW-sec/MVA. Determine the frequency of natural oscillations if the generator is loaded to 60% of its maximum power transfer capacity and small perturbation in power is given.

1.32 Hz
1.62 Hz
1.42 Hz
1.52 Hz

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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.

730 mH
1270 mH
932 mH
1135 mH

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