Mechanical Engineering - IC Engines and Nuclear Power Plants

6.
A two stroke cycle engine gives __________ mechanical efficiency than a four stroke cycle engine.
higher
lower
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
The delay period in compression ignition engines depends upon
temperature and pressure in the cylinder at the time of injection
nature of the fuel mixture strength
relative velocity between the fuel injection and air turbulence pressure of residual gases
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

8.
Lubrication in I.C. engines dissipates the heat generated from the moving parts due to friction.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

9.
The ratio of the heat equivalent to one kW hour to the heat in fuel per B.P. hour is termed as brake thermal efficiency.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.

10.
The theoretically correct mixture of air and petrol is
10:1
15:1
20:1
25:1
Answer: Option
Explanation:
No answer description is available. Let's discuss.