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Internal Combustion Engines

Internal Combustion Engines
The loud pulsating noise heard within the cylinder of an internal combustion engine is known as

Detonation
Turbulence
Pre-ignition
Supercharging

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Internal Combustion Engines
The basic requirement of a good combustion chamber is

Minimum turbulence
Low volumetric efficiency
High thermal efficiency and power output
Low compression ratio

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Internal Combustion Engines
The brake power is the power available

None of these
At the crank pin
At the crank shaft
In the engine cylinder

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Internal Combustion Engines
The specific fuel consumption per B.P. hour for a diesel engine is about

0.3 kg
0.35 kg
0.2 kg
0.25 kg

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Internal Combustion Engines
The effective inhibitor of pre-ignition is

Alcohol
None of these
Lead
Water

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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
0.50069444444444
0.62569444444444
0.37569444444444

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