Which of the following meters are not used on D.C. circuits______________?

Related Mcqs:

1. Most common form of A.C. meters met with in every day domestic and industrial installations are______________?

   A. mercury motor meters B. commutator motor meters C. induction type single phase energy meters D. all of the above...

2. Induction type single phase energy meters measure electric energy in_______________?

   A. kW B. Wh C. kWh D. VAR E. None of the above...

3. In a 3-phase power measurement by two wattmeter method, both the watt meters had identical readings. The power factor of the load was___________?

   A. unity B. 0.8 lagging C. 0.8 leading D. zero...

4. Which of the following properties a damping oil must possess ?

   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...

5. The spring material used in a spring control device should have the following property?

   A. Should be non-magnetic B. Most be of low temperature co-efficient C. Should have low specific resistance D. Should not be subjected to fatigue E. All of the above...

6. Which of the following are integrating instruments ?

   A. Ammeters B. Voltmeters C. Wattmeters D. Ampere-hour and watt-hour meters...

7. Which of the following essential features is possessed by an indicating instrument ?

   A. Deflecting device B. Controlling device C. Damping device D. All of the above...

8. Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured ?

   A. Absolute instruments B. Indicating instruments C. Recording instruments D. Integrating instruments...

9. Which of the following is an essential part of a motor meter ?

   A. An operating torque system B. A braking device C. Revolution registering device D. All of the above...

10. Which of the following devices should be used for accurate measurement of low D.C. voltage ?

    A. Small range moving coil voltmeter B. D.C. potentiometer C. Small range thermocouple voltmeter D. None of the above...