Energy Meter Multiple Choice Questions and Answers

36. In an energymeter braking torque is produceed to

   A.Safe guard it against creep

   B.Brake the instrument

   C.Bring energy meter to stand still

   D.Maintain steady speed and equal to driving torque

37. Various adjustments in an energy meter include

   A.Light load or friction

   B.Lag and creep

   C.Over load and voltage compensation

   D. Temperature compensation

   E. All of the above

38. Two power of a n-phase circuit can be measured by using a minimum of

   A.(n-1) wattmeter elements

   B.n wattmeter elements

   C.(n+1) wattmeter elements

   D.2n wattmeter elements

39. Two holes in the disc of energymeter are drilled at the opposite sides of the spindle to

   A.Improve its ventilation

   B.Eliminate creeping at no load

   C.Increase its deflecting torque

   D.Increase its barking torque

40. Energy meter installed at the residence of electric power consumers is

   A.Recording type instrument

   B.Indicating type instrument

   C.Indicating as well as recording type instrument

   D.None of the above

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