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Internal Combustion Engines

Internal Combustion Engines
Diesel as compared to petrol is

None of these
Less difficult to ignite
More difficult to ignite
Highly ignitable

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Internal Combustion Engines
The reason for supercharging in any engine is to

Increase efficiency
Increase power
Reduce weight and bulk for a given output
Effect fuel economy

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Internal Combustion Engines
The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called

Net efficiency
Overall efficiency
Relative efficiency
Efficiency ratio

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Internal Combustion Engines
Pre-ignition is caused by the spontaneous combustion of the mixture before the end of the compression stroke, and is due to

Red hot carbon deposits on cylinder walls
Any one of the listed here
Overheated spark plug points
Cylinder walls being too hot

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Internal Combustion Engines
Air fuel ratio for idling speed of a petrol engine is approximately

0.62569444444444
0.20902777777778
0.41736111111111
0.042361111111111

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Internal Combustion Engines
The increase in intake temperature of internal combustion engines will ___ efficiency.

Have no effect on
Decrease
Increase
None of the listed here

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MORE MCQ ON Internal Combustion Engines

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