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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.

Not effected
None of these
Decrease
Increase

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Internal Combustion Engines
When a body, floating in a liquid, is given a small angular displacement, it starts oscillating about a point known as

Centre of buoyancy
Metacentre
Centre of pressure
Centre of gravity

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Internal Combustion Engines
A higher compression ratio causes

Acceleration in the rate of combustion
Pre-ignition
Increase in detonation
Any one of these

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Internal Combustion Engines
The mean effective pressure obtained from engine indicator indicates the

Maximum pressure developed
Instantaneous pressure at any instant
Average pressure
Minimum pressure

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Internal Combustion Engines
A petrol engine has compression ratio from

10 to 15
25 to 40
6 to 10
15 to 25

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Internal Combustion Engines
An engine indicator is used to determine the following

m.e.p. and I.H.P.
Temperature
Speed
Volume of cylinder

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MORE MCQ ON Internal Combustion Engines

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