Mechanical Engineering - IC Engines and Nuclear Power Plants

31.
The advancing of spark timing in spark ignition engines will __________ knocking tendency.
increase
reduce
not effect
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
The knocking in spark ignition engines can be reduced by
retarding the spark
increasing the engine speed
both (a) and (b)
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

33.
An atom bomb utilises uncontrolled nuclear fission.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

34.
The ratio of the brake power to the indicated power is called
mechanical efficiency
overall efficiency
indicated thermal efficiency
volumetric efficiency
Answer: Option
Explanation:
No answer description is available. Let's discuss.

35.
The increase of efficiency of a compression ignition engine, as the load decreases, is due to
higher maximum temperature
qualitative governing
quantitative governing
hit and miss governing
Answer: Option
Explanation:
No answer description is available. Let's discuss.