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Internal Combustion Engines

Internal Combustion Engines
The correct mixture strength (by weight) for petrol is about

14.6 : 1
18.5 : 1
22.6 : 1
20.4 : 1

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Internal Combustion Engines
The higher combustion chamber wall temperature in compression ignition engines will _________ knocking tendency.

Not effect
Reduce
None of these
Increase

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Internal Combustion Engines
The following volume of air is required for consuming 1 liter of fuel by a four stroke engine

1 m3
5 m3
910 m3
56 m3

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Internal Combustion Engines
The combustion in compression ignition engines is

Heterogeneous
None of these
Both (A) and (B)
Homogeneous

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Internal Combustion Engines
For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of

0.75069444444444
0.62569444444444
0.37569444444444
0.50069444444444

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

Decrease
Not effect
None of these
Increase

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