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Internal Combustion Engines

Internal Combustion Engines
Diesel as compared to petrol is

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

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Internal Combustion Engines
In order to prevent knocking in spark ignition engines, the charge away from the spark plug should have

All of these
Long ignition delay
Low density
Low temperature

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Internal Combustion Engines
The pressure at the end of compression, in diesel engines, is approximately

10 bar
20 bar
35 bar
25 bar

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

Reduce
Not effect
Increase
None of these

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Internal Combustion Engines
The working cycle in case of four stroke engine is completed in following number of revolutions of crankshaft

43832
4
1
2

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Internal Combustion Engines
The actual volume of fresh charge admitted in 4-stroke petrol engine is

Equal to stroke volume
More than stroke volume
Less than stroke volume
Equal to stroke volume and clearance volume

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