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Internal Combustion Engines

Internal Combustion Engines
The frictional power (F.P.) is given by

F.P. = I.P. -
P. - I.P.
F.P. =
P.
P./I.P.
F.P. =
P.
F.P. = I.P./

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Internal Combustion Engines
Pre-ignition is caused by the spontaneous combustion of the mixture before the end of the compression stroke, and is due to

Overheated spark plug points
Cylinder walls being too hot
Any one of the listed here
Red hot carbon deposits on cylinder walls

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Internal Combustion Engines
Which of the following statement is correct regarding normal cetane?

It has long carbon chain structure
All of these
It is a standard fuel used for knock rating of diesel engines
Its chemical name is normal hexadecane

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Internal Combustion Engines
The process of breaking up or a liquid into fine droplets by spraying is called

Ionization
Carburetion
Vaporisation
Atomization

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Internal Combustion Engines
The effective inhibitor of pre-ignition is

Lead
Water
Alcohol
None of these

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Internal Combustion Engines
Number of working strokes per min. for a two stroke cycle engine is ____ the speed of the engine in r.p.m.

Twice
Equal to
Four-times
One-half

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