Mechanical Engineering - IC Engines and Nuclear Power Plants

1.
The cetane number of diesel oil, generally available, is
20 to 25
25 to 30
30 to 40
40 to 55
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
The object of providing masked inlet valve in the air passage of compression ignition engines is to
enhance flow rate
control air flow
induce primary swirl
induce secondary turbulence
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
During suction stroke of a four stroke petrol engine, the inlet valve opens and the charge is sucked into the cylinder as the piston moves upwards from the bottom dead centre.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
The power actually developed by the engine cylinder of an I.C. engine is known as
theoretical power
actual power
indicated power
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
A nuclear reactor is said to be critical when the neutron population in the reactor core is
rapidly increasing leading to the point of explosion
decreasing from the specified value
reduced to zero
constant
Answer: Option
Explanation:
No answer description is available. Let's discuss.