MGVCL Exam Paper (30-07-2021 Shift 3)
If the velocity of wind is doubled then the power output will

reduced to half
increase by 8 times
doubled
increase by 6 times

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MGVCL Exam Paper (30-07-2021 Shift 3)
A single phase motor connected to 400 V, 50 Hz supply takes 25 A at a power factor of 0.75 lagging. Calculate the capacitance required in parallel with the motor to raise the power factor to 0.95 lagging.

62.55 pF
82.55 pF
72.55 pF
92.55 pF

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MGVCL Exam Paper (30-07-2021 Shift 3)
In two-part tariff, the ____ charges depend upon the maximum demand of the consumer and the ____ charges depend upon the number of units consumed by the consumer.

fixed, semi-fixed
fixed, running
semi-fixed, running
running, fixed

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MGVCL Exam Paper (30-07-2021 Shift 3)
કામકાજમાં ધ્યાન કન્દ્રિત કરજો'.
આ આજ્ઞાર્થ વાક્યની સંભાવનાર્થ વાક્યરચના કઈ હોઈ શકે?

હવે તો તમે કામકાજમાં ધ્યાન કેન્દ્રિત કરો.
કામકાજમાં ધ્યાન કેન્દ્રિત નથી કરવું?
કામકાજમાં ધ્યાન કેન્દ્રિત કરી લીધું છે.
હવે તો કામકાજમાં ધ્યાન કેન્દ્રિત કરશો ને?

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MGVCL Exam Paper (30-07-2021 Shift 3)
A 50 Hz synchronous generator is connected to an infinite bus through a line. The p.u. reactances of generator and the line are j0.4 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.

1.6 Hz
1.8 Hz
0.8 Hz
1.2 Hz

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