Mechanical Engineering - IC Engines and Nuclear Power Plants

36.
The air standard efficiency of an I.C. engine depends on
fuel used
speed of engine
compression ratio
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

37.
The mean effective pressure of a diesel engine having fixed compression ratio will __________ if cut off ratio decreases.
increase
decrease
Answer: Option
Explanation:
No answer description is available. Let's discuss.

38.
The knocking tendency in spark ignition engines may be decreased by
controlling the air-fuel mixture
controlling the ignition timing
controlling the exhaust temperature
reducing the compression ratio
Answer: Option
Explanation:
No answer description is available. Let's discuss.

39.
In a two stroke engine, the working cycle is completed in two revolutions of the crankshaft.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.

40.
A reactor capable of converting a fertile material into fissile isotopes is called regenerative reactor.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.