MGVCL Exam Paper (30-07-2021 Shift 2)
The wind speed increases with height because of

reduction in the gravitational force
reduction of drag effect of the earth surface
enhancement of drag effect on the earth surface
reduction in lift effect of the air

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

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