MGVCL Exam Paper (30-07-2021 Shift 2)
In a single phase energy meter, the shunt electromagnet is energized by a ____of ____

pressure coil, thick wire of few turns
current coil, thick wire of few turns
current coil, thin wire of more turns
pressure coil, thin wire of more turns

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MGVCL Exam Paper (30-07-2021 Shift 2)
A power factor less than unity results in which of the following disadvantages?
(i) Large kVA rating of equipment
(ii)Poor voltage regulation
(iii) Greater conductor size

(ii) and (iii) only
(i) and (ii) only
(i), (ii) and (iii)
(i) and (iii) only

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

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

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