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Internal Combustion Engines

Internal Combustion Engines
In a naturally aspirated diesel engine, the air is supplied by

An injection tube
A supercharger
A vacuum chamber
A centrifugal blower

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Internal Combustion Engines
The ratio of the indicated thermal efficiency to the air standard efficiency is known as

Overall efficiency
Mechanical efficiency
Relative efficiency
Volumetric efficiency

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Internal Combustion Engines
A mixture containing 65% of iso-octane and 35% of normal heptane will have

Octane number 65
Octane number 35
Cetane number 65
Cetane number 35

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Internal Combustion Engines
Supercharging is essential in

Petrol engines
Diesel engines
Aircraft engines
Gas turbines

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

Carburetion
Turbulence
Delay period
Supercharging

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Internal Combustion Engines
Diesel as compared to petrol is

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

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MORE MCQ ON Internal Combustion Engines

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