Exercise: Ic Engines And Nuclear Power Plants

Questions for: Ic Engines And Nuclear Power Plants

Plutonium (Pu239) is produced
A:
artificially
B:
by fission of Th232
C:
when U238 is irradiated by neutrons
D:
as basic raw material
Answer: C
No answer description is available. Let's discuss.
The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called
A:
mechanical efficiency
B:
overall efficiency
C:
indicated thermal efficiency
D:
volumetric efficiency
Answer: B
No answer description is available. Let's discuss.
The fuels in order of decreasing knock tendency for spark ignition engines are
A:
paraffins, aromatics, napthenes
B:
paraffins, napthenes, aromatics
C:
napthenes, aromatics, paraffins
D:
napthenes, paraffins, aromatics
Answer: B
No answer description is available. Let's discuss.
In diesel engines, the ignition takes place due to the heat produced in the engine cylinder at the end of compression.
A:
Correct
B:
Incorrect
C:
D:
Answer: A
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A nuclear reactor is said to be critical when the neutron population in the reactor core is
A:
rapidly increasing leading to the point of explosion
B:
decreasing from the specified value
C:
reduced to zero
D:
constant
Answer: D
No answer description is available. Let's discuss.
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