Series capacitors are used to_________________?

Related Mcqs:

1. Series reactors should have________________?

   A. low resistance B. high resistance C. low impedance D. high impedance...

2. Thermal circuit breaker has____________?

   A. delayed trip action B. instantaneous trip action C. both of the above D. none of the above...

3. Circuit breakers are essentially____________?

   A. current carrying contacts called electrodes B. arc extinguishers C. circuits to break the system D. transformers to isolate the two systems E. any of the above...

4. The current zero interruption, in oil and air blast circuit breakers, is achieved by_______________?

   A. lengthening of the gap B. cooling and blast effect C. both A. and B D. deionizing the oil with forced air E. none of the above...

5. Overheating of relay contacts or contact born out is due to_______________?

   A. slow making and breaking of load circuit contacts B. foreign matter on the contact surface C. too low contact pressure D. all of the above...

6. H.R.C. fuses provide best protection against________________?

   A. overload B. reverse current C. open-circuits D. short-circuits...

7. The under voltage relay can be used for______________?

   A. generators B. busbars C. transformers D. motors E. all of the above...

8. Over voltage protection is recommended for______________?

   A. hydro-electric generators B. steam turbine generators C. gas turbine generators D. all of the above E. none of the above...

9. In a single bus-bar system there will be complete shut down when____________?

   A. fault occurs on the bus itself B. fault occurs on neutral line C. two or more faults occur simultaneously D. fault occurs with respect to earthing...

10. The fuse rating is expressed in terms of_____________?

    A. current B. voltage C. VAR D. kVA...