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Internal Combustion Engines

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

Vaporisation
Atomization
Carburetion
Ionization

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

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

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Internal Combustion Engines
The thermal efficiency of diesel engines is about

0.15
0.3
0.5
0.7

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Internal Combustion Engines
The colour of exhaust from diesel engine is generally

Bluish
Black
Violet
White

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Internal Combustion Engines
During idling, a petrol engine requires _________ mixture.

Rich
Chemically correct
None of these
Lean

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Internal Combustion Engines
A diesel engine as compared to petrol engine (both running and rated load) is

Less efficient
Equally efficient
Other factors will decide it
More efficient

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MORE MCQ ON Internal Combustion Engines

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