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Mechanical Engineering - IC Engines and Nuclear Power Plants

Exercise : IC Engines and Nuclear Power Plants - Section 5
31.
A long delay period in compression ignition engines gives a more rapid rise in pressure which causes knocking.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
A fission chain reaction in uranium can be developed
by increasing the contents of U235
by slowing down fast neutrons so that U235 fission continues by slow neutron
both (a) and (b)
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Thermal efficiency of a two stroke cycle engine is __________ a four stroke cycle engine.
equal to
less than
greater than
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
A supercharged engine as compared to an ordinary engine
is lighter
requires smaller foundations
consumes less lubricating oil
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Which one of the following engines will have heavier flywheel than the remaining ones?
30 kW four-stroke petrol engine running at 1500 r.p.m.
30 kW two-stroke petrol engine running at 1500 r.p.m.
30 kW two-stroke diesel engine running at 750 r.p.m.
30 kW four-stroke diesel engine running at 750 r.p.m.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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