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.Management Sciences
A. to provide free passage to the cooling oil
B. to insulate the coils from each other
C. both A. and (b)
D. none of the above
Related Mcqs:
- The no-load current drawn by transformer is usually what per cent of the full-load current ?
- A. 0.2 to 0.5 per cent B. 2 to 5 per cent C. 12 to 15 per cent D. 20 to 30 per cent...
- In the transformer the function of a conservator is to_______________?
- A. provide fresh air for cooling the transformer B. supply cooling oil to transformer in time of need C. protect the transformer from damage when oil expends due to heating D. none of the above...
- The leakage flux in a transformer depends upon______________?
- A. load current B. load current and voltage C. load current, voltage and frequency D. load current, voltage, frequency and power factor...
- The efficiency of a transformer, under heavy loads, is comparatively low because_______________?
- A. copper loss becomes high in proportion to the output B. iron loss is increased considerably C. voltage drop both in primary and secondary becomes large D. secondary output is much less as compared to primary input...
- For a transformer, operating at constant load current, maximum efficiency will occur at______________?
- A. 0.8 leading power factor B. 0.8 lagging power factor C. zero power factor D. unity power factor...
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