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.Management Sciences
A. 90 to 95%
B. 85 to 90%
C. 80 to 85%
D. 65 to 75%
Related Mcqs:
- Ageing of a selenium rectifier may change the output voltage by__________?
- A. 5 to 10 per cent B. 15 to 20 per cent C. 25 to 30 per cent D. none of the above...
- Copper oxide rectifier is usually designed not to operate above___________?
- A. 10°C B. 20°C C. 30°C D. 45°C...
- It is the_________of the transformer on which the magnitude of angle of overlap depends?
- A. resistance B. capacitance C. leakage reactance D. any of the above...
- In a mercury pool rectifier, the voltage drop across its electrodes___________?
- A. is directly proportional to load B. is inversely proportional to load C. varies exponentially with the load current D. is almost independent of load current...
- The cathdde voltage drop, in a mercury arc rectifier, is due to_____________?
- A. expenditure of energy in ionization B. surface resistance C. expenditure of energy in overcoming the electrostatic field D. expenditure of energy in liberating electrons from the mercury...
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