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Internal Combustion Engines

Internal Combustion Engines
The air-fuel ratio of the petrol engine is controlled by

Injector
Governor
Fuel pump
Carburettor

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Internal Combustion Engines
Alpha-methyl-naphthalene (C11H10) has a cetane number of

50
0
120
100

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

None of these
Increase
Not effect
Reduce

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Internal Combustion Engines
The probability of knocking in diesel engines is increased by

Low volatility
All of these
Higher viscosity
High self ignition temperature

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Internal Combustion Engines
The ignition quality of petrol is expressed by

Octane number
All of these
Calorific value
Cetane number

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Internal Combustion Engines
Supercharging is the process of supplying the intake air to the engine cylinder at a density ___ the density of the surrounding atmosphere.

Greater than
None of the listed here
Less than
Equal to

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