IC Engines and Nuclear Power Plants MCQs
IC Engines and Nuclear Power Plants MCQs
Our team has conducted extensive research to compile a set of IC Engines and Nuclear Power Plants MCQs with Answers (FREE) MCQs. We encourage you to test your IC Engines and Nuclear Power Plants MCQs with Answers (FREE) knowledge by answering these multiple-choice questions provided below.
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1: The basic requirement of a good combustion chamber is
A. Low volumetric efficiency
B. Minimum turbulence
C. High thermal efficiency and power output
D. Low compression ratio
2: In a four stroke cycle petrol engine, the charge is compressed when both the valves (i.e. inlet valve and exit valve) are closed,
A. Disagree
B. Agree
3: Ordinary water is sometimes used as moderator when enriched uranium is used as a fuel in nuclear power plants.
A. No
B. Yes
4: High speed compression engines operate on
A. Dual-combustion cycle
B. Otto cycle
C. All of these
D. Diesel cycle
5: The brake power of a diesel engine, keeping other parameters constant, can be increased by
A. Decreasing the density of intake air
B. Increasing the pressure of intake air
C. Decreasing the pressure of intake air
D. Increasing the temperature of intake air
6: The diesel engines are also known as __________ engines.
A. Spark ignition
B. Compression ignition
7: The reference fuels for knock rating of spark ignition engines would include
A. Iso-octane and alpha-methyl naphthalene
B. Normal octane and aniline
C. Iso-octane and normal hexane
D. Normal heptane and iso-octane
8: The pressure at the end of compression, in diesel engines, is approximately
A. 25 bar
B. 35 bar
C. 10 bar
D. 20 bar
9: In a four stroke cycle, the minimum temperature inside the engine cylinder occurs at the
A. End of suction stroke
B. End of exhaust stroke
C. Beginning of exhaust stroke
D. Beginning of suction stroke
10: U233 is produced
A. When thorium is irradiated by neutrons
B. As basic raw material
C. By fission of U238
D. Artificially
11: The nuclear power station at Tarapur has the reactor of the __________ type.
A. Pressurized water
B. Gas cooled
C. Liquid metal cooled
D. Boiling water
12: A moderator generally used in nuclear power plants is
A. Graphite and concrete
B. Concrete
C. Heavy water
D. Graphite
13: Each fission of U235 produces on the average __________ fast neutrons as a product of reaction.
A. 24.6
B. 246
C. 2.46
D. 2460
14: A carburettor is used to supply
A. Petrol and lubricating oil
B. Petrol, air and lubricating oil
C. Air and diesel
D. Petrol and air
15: The pre-ignition occurs before the spark is produced whereas detonation develops after the introduction of spark.
A. Agree
B. Disagree
16: The thermal efficiency of diesel engines on weak mixtures is
A. Lower
B. Dependent on other factors
C. Higher
D. Unaffected
17: Where reactor operation is designed with fast neutrons such as in reactors using highly enriched fuel, the moderator used is
A. Carbon dioxide
B. Graphite
C. No moderator is needed
D. Heavy water
18: The thermal efficiency of a standard Otto cycle for a compression ratio of 5.5 will be
A. 25%
B. 50%
C. 70%
D. 100%
19: The detonating tendency in petrol engines increases with increase of compression ratio.
A. True
B. False
20: The predominent isotope of the naturally occuring element is
A. Pu239
B. Pu233
C. U238
D. U235
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IC Engines and Nuclear Power Plants MCQs
