Switchgear And Protection | Switchgear And Protection Objective Type Questions and answers

46.  The transient voltages that appears across the contacts at the instant of arc extinction is called ..............voltage

   A. Supply

   B. Recovery

   C. Restriking

   D. Peak

47.  The power loss is an important factor for the design of

   A. Transmission line

   B. Motor

   C. Generator

   D. Feeder

48.  SF₆ gas

   A. Is yellow in colour

   B. Is lighter than air

   C. Is non-toxic

   D. Has pungent small

49.  SF₆ gas is transported in

   A. Air cylinders

   B. Gas cylinders

   C. Liquid from in cylinders

   D. Solid form in boxes

50.  The short-circuit in any winding of the transformer is the result of

   A. Mechanical vibration

   B. Insulation failure

   C. Loose connection

   D. Impulse voltage

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