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Internal Combustion Engines

Internal Combustion Engines
The size of inlet valve of an engine in comparison to exhaust valve is

More
More/less depending on capacity of engine
Less
Same

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Internal Combustion Engines
For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of

0.50069444444444
0.62569444444444
0.37569444444444
0.75069444444444

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Internal Combustion Engines
The minimum cranking speed in case of petrol engine is about

One fourth of operating speed
250 - 300 rpm
Half the operating speed
60 - 80 rpm

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

A vacuum chamber
A centrifugal blower
A supercharger
An injection tube

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Internal Combustion Engines
In order to mix air and petrol in the required proportion and to supply it to the engine during suction stroke, then ___ is employed.

Injector
Carburettor
None of the listed here
Fuel pump

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Internal Combustion Engines
Gaseous fuel guarantees are based on

High heat value of oil
Calorific value of oil
Mean heat value of oil
Low heat value of oil

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MORE MCQ ON Internal Combustion Engines

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