- (A) Must be a good insulator
- (B) Should be non-evaporating
- (C) Should not have corrosive action upon the metal of the vane
- (D) The viscosity of the oil should not change with the temperature
- (E) All of the above
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- (A) potential transformers
- (B) current transformers
- (C) power transformers
- (D) either of the above
- (E) none of the above
- (A) Tangent galvanometer
- (B) Meggar
- (C) Current transformer
- (D) None of the above
- (A) kW
- (B) Wh
- (C) kWh
- (D) VAR
- (E) None of the above
- (A) by using a low resistance shunt
- (B) by using a high series resistance
- (C) by eliminating the control springs
- (D) by making control springs of large moment of inertia
- (A) mercury motor meters
- (B) commutator motor meters
- (C) induction type single phase energy meters
- (D) all of the above
- (A) 10 A
- (B) 30 A
- (C) 60 A
- (D) 100 A
- (A) Absolute
- (B) Indicating
- (C) Recording
- (D) Integrating
- (A) wattmeters
- (B) voltmeters
- (C) ammeters
- (D) ohmmeters and resistance bridges
- (E) all of the above
- (A) absolute
- (B) indicating
- (C) recording
- (D) integrating
- (E) none of the above
