MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of the following statement with respect to Aerial Bunched Cables (ABC) system is TRUE?

The overall cost of the ABC system is very high as compared to the bare conductor system.
ABC system totally eliminates the fault on lines and thereby improving the quality of supply.
ABC system requires more clearance, insulators and high maintenance.
ABC system is not suitable for rural electrification which are situated in difficult terrain, hills, forests and coastal areas.

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MGVCL Exam Paper (30-07-2021 Shift 2)
____are long-term (hours-long) voltage sags caused by system overload.

Brownouts
Black outs
Voltage dips
Voltage surges

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MGVCL Exam Paper (30-07-2021 Shift 2)
Which of the following does the term 'feeder automation' include?

substation reactive power control
automatic reclosing
All of these
feeder remote point voltage control

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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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