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Mechanical Engineering - IC Engines and Nuclear Power Plants

Exercise : IC Engines and Nuclear Power Plants - Section 4
26.
The fuel valve in a four stroke cycle diesel engine
opens at 15° after top dead centre and closes at 20° before bottom dead centre
opens at 15° before top dead centre and closes at 20° after top dead centre
opens at top dead centre and closes at bottom dead centre
may open and close anywhere
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
In petrol engines, advancing of the spark timing will __________ the knocking tendency.
not effect
decrease
increase
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
The knocking tendency in compression ignition engines for a given fuel will be
enhanced by decreasing compression ratio
enhanced by increasing compression ratio
dependent on other factors
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
In a four stroke cycle engine, the sequence of operations is
suction, compression, expansion and exhaust
suction, expansion, compression and exhaust
expansion, compression, suction and exhaust
compression, expansion, suction and exhaust
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Diesel as compared to petrol is
highly ignitable
more difficult to ignite
less difficult to ignite
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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