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.Management Sciences
A. Lightning arresters
B. Relays
C. Step-down transformer
D. Switchgear
Related Mcqs:
- 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...
- 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...
- H.R.C. fuses provide best protection against________________?
- A. overload B. reverse current C. open-circuits D. short-circuits...
- Bus coupler is very essential in arrangement______________?
- A. single bus B. double bus, double breaker C. main and transfer bus D. all of the above...
- The short circuit in any winding of the transformer is the result of_______________?
- A. mechanical vibration B. insulation failure C. loose connection D. impulse voltage...
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