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Internal Combustion Engines

Internal Combustion Engines
Alpha-methyl-naphthalene (C₁₁ H₁₀) has a cetane number of

100
50
0
120

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Internal Combustion Engines
A diesel engine is ___ as compared to petrol engine, both running at rated load.

Less efficient
Equally efficient
More efficient
None of the listed here

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Internal Combustion Engines
All heat engines utilize

Net calorific value of oil
Calorific value of fuel
Low heat value of oil
High heat value of oil

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Internal Combustion Engines
The theoretically correct air fuel ratio for petrol engine is of the order of

0.37569444444444
0.50069444444444
0.25069444444444
0.62569444444444

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Internal Combustion Engines
The term scavenging is generally associated with

High efficiency engines
Aeroplane engines
2-stroke cycle engines
4-stroke cycle engines

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Internal Combustion Engines
The increase of cooling water temperature in petrol engine will _________ the knocking tendency.

None of these
Decrease
Not effect
Increase

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