Mechanical Engineering - IC Engines and Nuclear Power Plants

11.
In petrol engines, using a fixed octane rating fuel, the increase in engine speed will decrease the knocking tendency.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.

12.
Materials which make good moderators do not make good reflectors.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.

13.
The ignition of the charge by some hot surface within the engine before the passage of spark is called
pre-ignition
detonation
ignition delay
auto-ignition
Answer: Option
Explanation:
No answer description is available. Let's discuss.

14.
Special reactors, called breeder reactors, supply a net gain of fissionable material.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

15.
The ratio of the indicated thermal efficiency to the air standard efficiency is known as
mechanical efficiency
overall efficiency
volumetric efficiency
relative efficiency
Answer: Option
Explanation:
No answer description is available. Let's discuss.