A. current during abnormal condition
B. voltage during abnormal condition
C. constantly the electrical quantities which differ during normal and abnormal conditions
D. none of the above
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Related Mcqs:
- To protect most of the electrical equipment handling low power, the types of relays used are______________?
- A. thermocouple B. electronic and bimetallic C. both (A) and (B) D. none of the above...
- Overload relays are of_______________type
- A. induction B. solid state C. thermal D. electromagnetic E. all above...
- Thermal overload relays are used to protect the motor against over current due to____________?
- A. short-circuits B. heavy loads C. grounds D. all of the above...
- D.C. shunt relays are made of_____________?
- A. few turns of thin wire B. few turns of thick wire C. many turns of thin wire D. many turns of thick wire...
- Directional relays are based on flow of____________?
- A. power B. current C. voltage wave D. all of the above...
- Relays can be designed to respond to changes in________________?
- A. resistance, reactance or impedance B. voltage and current C. light intensity D. temperature E. all above...
- The inverse definite mean time relays are used for over current and earth fault protection of transformer against_________________?
- A. heavy loads B. internal short-circuits C. external short-circuits D. all of the above...
- The single phasing relays are used for the protection of_____________?
- A. single phase motors only B. two phase motors only C. two single phase motors running in parallel D. three phase motors...
- relays are used for phase faults on long line?
- A. Impedance B. Reactance C. Either of the above D. None of the above...
- Distance relays are generally_____________?
- A. split-phase relays B. reactance relays C. impedance relays D. none of the above...
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