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INTERNAL COMBUSTION ENGINES

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

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

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Internal Combustion Engines
The mechanical efficiency (ηm) of the engine is given by

ηm = B.P/I.P
ηm = I.P/B.P
ηm = (B.P × I.P)/100
None of these

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

Supercharging
Turbulence
Pre-ignition
Detonation

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Internal Combustion Engines
High speed compression engines operate on

Dual combustion cycle
All of these
Otto cycle
Diesel cycle

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Internal Combustion Engines
The combustion in compression ignition engines is

Both (A) and (B)
Homogeneous
None of these
Heterogeneous

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