Electric Power Generation - EEE Questions and Answers

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Water is supplied to a boiler

A.

at atmospheric pressure

B.

at slightly more than atmospheric pressure

C.

at 100 cm/kg2

D.

at more than the steam pressure on the boiler

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As steam expands in turbine

A.

its pressure increases

B.

its pressure increases

C.

its boiling point increases

D.

its temperature increases

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Burning of low grade fuel can be improved by

A.

Blending with better quality

B.

Oil assisted ignition

C.

Pulverizing

D.

Any of the above

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When pulverized fuel is not used, the equipment used for supplying coal to the boiler is

A.

Heater

B.

Stoker

C.

Burner

D.

Skip hoist

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The p-region has a greater concentration of __________ as compared to the n-region in a P-N junction.

A.

holes

B.

electrons

C.

both holes & electrons

D.

phonons

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A p-type semiconductor material is doped with ____________ impurities whereas a n-type semiconductor material is doped with __________ impurities

A.

acceptor, donor

B.

acceptor, acceptor

C.

donor, donor

D.

donor, acceptor

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In the p & n regions of the p-n junction the _________ & the ___________ are the majority charge carriers respectively.

A.

holes, holes

B.

electrons, electrons

C.

holes, electrons

D.

electrons, holes