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Internal Combustion Engines

Internal Combustion Engines
The size of inlet valve of an engine in comparison to exhaust valve is

Less
More
Same
More/less depending on capacity of engine

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Internal Combustion Engines
A 75 cc engine has following parameter as 75 cc

Lube oil capacity
Swept volume
Cylinder volume
Fuel tank capacity

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Internal Combustion Engines
The operation of forcing additional air under pressure in the engine cylinder is known as

Turbulence
Pre-ignition
Scavenging
Supercharging

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Internal Combustion Engines
The knock in diesel engine occurs due to

Reduction of delay period
Instantaneous auto ignition of last part of charge
Instantaneous and rapid burning of the first part of the charge
Delayed burning of the first part of the charge

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Internal Combustion Engines
The knocking tendency in compression ignition engines for a given fuel will be

Dependent on other factors
Enhanced by increasing compression ratio
None of these
Enhanced by decreasing compression ratio

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Internal Combustion Engines
The thermal efficiency of diesel engines on weak mixtures is

Dependent on other factors
Unaffected
Higher
Lower

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MORE MCQ ON Internal Combustion Engines

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