24) The primary fuel used in nuclear power plants is

U₂₃₅

U₂₃₈

Pu₂₃₉

Pu₂₃₃

Answer is:

U₂₃₅

IC Engines and Nuclear Power Plants MCQ with Answers

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25) In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will __________ the knocking tendency.

not effect

decrease

increase

none of these

Answer is:

increase

26) Ordinary water is sometimes used as moderator when enriched uranium is used as a fuel in nuclear power plants.

Correct

Incorrect

Answer is:

Correct

27) The compensating jet in a carburettor supplies almost constant amount of petrol at all speeds because the

jet area is automatically varied depending on the suction

the flow from the main jet is diverted to the compensating jet with increase in speed

the diameter of the jet is constant and the discharge coefficient is invariant

flow is produced due to the static head in the float chamber

Answer is:

flow is produced due to the static head in the float chamber

28) The effective inhibitor of pre-ignition is

alcohol

water

lead

none of these

Answer is:

water

IC Engines and Nuclear Power Plants MCQ with Answers

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24) The primary fuel used in nuclear power plants is

U235

IC Engines and Nuclear Power Plants MCQ with Answers

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25) In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will __________ the knocking tendency.

increase

26) Ordinary water is sometimes used as moderator when enriched uranium is used as a fuel in nuclear power plants.

Correct

27) The compensating jet in a carburettor supplies almost constant amount of petrol at all speeds because the

flow is produced due to the static head in the float chamber

28) The effective inhibitor of pre-ignition is

water

IC Engines and Nuclear Power Plants MCQ with Answers

U₂₃₅