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Mechanical Engineering - IC Engines and Nuclear Power Plants

Exercise : IC Engines and Nuclear Power Plants - Section 4
41.
During idling, a petrol engine requires __________ mixture.
lean
rich
chemically correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
In natural uranium, the constituents of three naturally occuring isotopes are
U234 = 0.006%, U235 = 0.712% and U238 = 99.282%
U234 = 0.712%, U235 = 0.006% and U238 = 99.282%
U234 = 99.282%, U235 = 0.006% and U238 = 0.712%
U234 = 0.006%, U235 = 99.282% and U238 = 0.712%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Stoichiometric ratio is
chemically correct air-fuel ratio by weight
chemically correct air-fuel ratio by volume
actual air-fuel ratio for maximum efficiency
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Which of the following fuel has little tendency towards detonation ?
Benzene
Iso-octane
Normal heptane
Alcohol
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
In a petrol engine, the fuel supplied to the engine cylinder is mixed with required quantity of air and the mixture is ignited with a
fuel pump
fuel injector
spark plug
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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