IndiaBIX

Mechanical Engineering - IC Engines and Nuclear Power Plants

Exercise : IC Engines and Nuclear Power Plants - Section 4
11.
The ignition quality of diesel oil is expressed by
cetane number
octane number
calorific value
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
In a four stroke cycle petrol engine, the expansion
starts at top dead centre and ends at bottom dead centre
starts at 30° before top dead centre and ends at 50° before bottom dead centre
starts at 30° after top dead centre and ends at 50° after bottom dead centre
may start and end anywhere
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
A fuel of an octane number rating of 75 matches in knocking intensity as a mixture of
75% iso-octane and 25% normal heptane
75% normal heptane and 25% iso-octane
75% petrol and 25% diesel
75% diesel and 25% petrol
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
A two stroke cycle engine gives __________ the number of power strokes as compared to the four stroke cycle engine, at the same engine speed.
half
same
double
four times
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
By higher octane number of spark ignition fuel, it is meant that the fuel has
higher heating value
higher flash point
lower volatility
longer ignition delay
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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