Exercise: Ic Engines And Nuclear Power Plants

Questions for: Ic Engines And Nuclear Power Plants

The knocking tendency in spark ignition engines may be decreased by
A:
controlling the air-fuel mixture
B:
controlling the ignition timing
C:
controlling the exhaust temperature
D:
reducing the compression ratio
Answer: D
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The mean effective pressure of a diesel engine having fixed compression ratio will __________ if cut off ratio decreases.
A:
increase
B:
decrease
C:
D:
Answer: B
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The air standard efficiency of an I.C. engine depends on
A:
fuel used
B:
speed of engine
C:
compression ratio
D:
none of these
Answer: C
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Number of working strokes per min. for a four stroke cycle engine are __________ the speed of the engine in r.p.m.
A:
equal to
B:
one-half
C:
twice
D:
four-times
Answer: B
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In a petrol engine, if diesel is used, then the engine will
A:
not run
B:
run more efficiently
C:
run at high speed
D:
explode
Answer: A
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