A. potential transformers
B. current transformers
C. power transformers
D. either of the above
E. none of the above
Related Mcqs:
- The stator of phase shifting transformer for use in conjunction with an A.C. potentiometer usually has a _________________?
A. single-phase winding
B. two-phase winding
C. three-phase winding
D. any of the above - A phase shifting transformer is used in conjunction with_______________?
A. D.C. potentiometer
B. Drysdale potentiometer
C. A.C. co-ordinate potentiometer
D. Crompton potentiometer - In an AC. co-ordinate potentiometer, the currents in the phase and quadrature potentiometer are adjusted to be_____________?
A. out of phase by 90°
B. out of phase by 60°
C. out of phase by 30°
D. out of phase by 0°
E. out of phase by 180° - In a single phase power factor meter the phase difference between the currents in the two pressure coils is___________________?
A. exactly 0°
B. approximately 0°
C. exactly 90°
D. approximately 90° - An induction meter can handle current up to_____________?
A. 10 A
B. 30 A
C. 60 A
D. 100 A - Induction type single phase energy meters measure electric energy in_______________?
A. kW
B. Wh
C. kWh
D. VAR
E. None of the above - An induction wattmeter can be used for_________________?
A. both D.C. and A.C.
B. D.C. only
C. A.C. only
D. any of the above - A potentiometer may be used for_________________?
A. measurement of resistance
B. measurement of current
C. calibration of ammeter
D. calibration of voltmeter
E. all of the above - In a low power factor wattmeter the pressure coil is connected_______________?
A. to the supply side of the current coil
B. to the load side of the current coil
C. in any of the two meters at connection
D. none of the above - Alternating current is measured by_______________?
A. induction ammeter
B. permanent magnet type ammeter
C. electrostatic ammeter
D. moving iron repulsion type voltmeter
