Mechanical Engineering - IC Engines and Nuclear Power Plants

1.
If V1 is the jet velocity and V0 is the vehicle velocity, then propulsive efficiency of a turbo-jet engine is
Answer: Option
Explanation:
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2.
Theoretically, a four stroke cycle engine should develop __________ power as that of a two stroke cycle engine.
half
same
double
four times
Answer: Option
Explanation:
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3.
Light weight substances can not be effective moderators.
True
False
Answer: Option
Explanation:
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4.
The higher combustion chamber wall temperature in compression ignition engines will __________ knocking tendency.
increase
reduce
not effect
Answer: Option
Explanation:
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5.
The nuclear radiators produced in a reactor which must be sheilded are
electrons
α, β and γ rays
neutron and gamma rays
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.