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ME Set-1
IC Engines and Nuclear Power Plants
202

IC Engines and Nuclear Power Plants MCQ with Answers

202) A nuclear reactor is said to be critical when the neutron population in the reactor core is

rapidly increasing leading to the point of explosion

decreasing from the specified value

reduced to zero

constant

Answer is:

constant

IC Engines and Nuclear Power Plants MCQ with Answers

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Related IC Engines and Nuclear Power Plants MCQ with Answers

203) In diesel engines, the ignition takes place due to the heat produced in the engine cylinder at the end of compression.

Correct

Incorrect

Answer is:

Correct

204) The fuels in order of decreasing knock tendency for spark ignition engines are

paraffins, aromatics, napthenes

paraffins, napthenes, aromatics

napthenes, aromatics, paraffins

napthenes, paraffins, aromatics

Answer is:

paraffins, napthenes, aromatics

205) The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called

mechanical efficiency

overall efficiency

indicated thermal efficiency

volumetric efficiency

Answer is:

overall efficiency

206) Plutonium (Pu₂₃₉) is produced

artificially

by fission of Th₂₃₂

when U₂₃₈ is irradiated by neutrons

as basic raw material

Answer is:

when U₂₃₈ is irradiated by neutrons

IC Engines and Nuclear Power Plants MCQ with Answers

For more MCQ's Click Here

202) A nuclear reactor is said to be critical when the neutron population in the reactor core is

constant

IC Engines and Nuclear Power Plants MCQ with Answers

Related IC Engines and Nuclear Power Plants MCQ with Answers

203) In diesel engines, the ignition takes place due to the heat produced in the engine cylinder at the end of compression.

Correct

204) The fuels in order of decreasing knock tendency for spark ignition engines are

paraffins, napthenes, aromatics

205) The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called

overall efficiency

206) Plutonium (Pu239) is produced

when U238 is irradiated by neutrons

IC Engines and Nuclear Power Plants MCQ with Answers

206) Plutonium (Pu₂₃₉) is produced

when U₂₃₈ is irradiated by neutrons