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Mechanical Engineering - IC Engines and Nuclear Power Plants

Exercise : IC Engines and Nuclear Power Plants - Section 1
6.
The ratio of the volume of charge admitted at N.T.P. to the swept volume of the piston is called
mechanical efficiency
overall efficiency
volumetric efficiency
relative efficiency
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
The exhaust valve in a four stroke cycle petrol engine
opens at 50° before bottom dead centre and closes at 15° after top dead centre
opens at bottom dead centre and closes at top dead centre
opens at 50° after bottom dead centre and closes at 15° before top dead centre
may open and close anywhere
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
Nuclear reactors are used
to produce heat for thermoelectric power
to produce fissionable material
to propel ships, submarines, aircrafts
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
A moderator generally used in nuclear power plants is
graphite
heavy water
concrete
graphite and concrete
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
The predominent isotope of the naturally occuring element is
U235
U238
Pu233
Pu239
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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