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Internal Combustion Engines

Internal Combustion Engines
In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency.

None of these
Not effected
Increase
Decrease

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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

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

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Internal Combustion Engines
Fuel oil consumption guarantees for I .C. engine are usually based on

Low heat value of oil
Net calorific value of oil
High heat value of oil
Calorific value of fuel

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Internal Combustion Engines
Number of working strokes per min. for a four stroke cycle engine are _________ the speed of the engine in r.p.m.

Equal to
Twice
One-half
Four-times

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Internal Combustion Engines
The thermodynamic cycle on which the petrol engine works, is

Otto cycle
Stirling cycle
Rankine cycle
Joule cycle

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Internal Combustion Engines
The air-fuel ratio of the petrol engine is controlled by

Carburettor
Governor
Fuel pump
Injector

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MORE MCQ ON Internal Combustion Engines

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