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Internal Combustion Engines

Internal Combustion Engines
High speed compression engines operate on

All of these
Otto cycle
Diesel cycle
Dual combustion cycle

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Internal Combustion Engines
The ratio of the volume of charge admitted at N.T.P. to the swept volume of the piston is called

Mechanical efficiency
Volumetric efficiency
Relative efficiency
Overall efficiency

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Internal Combustion Engines
The two reference fuels used for cetane rating are

Cetane and normal heptane
Cetane and alpha-methyl naphthalene
Cetane and iso-octane
Cetane and tetra ethyl lead

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Internal Combustion Engines
The air requirement of a petrol engine during starting compared to theoretical air required for complete combustion is

Same
May be more or less depending on engine capacity
More
Less

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

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

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Internal Combustion Engines
The function of a distributor in a coil ignition system of I.C. engines is

To distribute power
To distribute current
To distribute spark
To time the spark

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MORE MCQ ON Internal Combustion Engines

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