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Internal Combustion Engines

Internal Combustion Engines
The temperature of interior surface of cylinder wall in normal operation is not allowed to exceed

180°C
240°C
80°C
120°C

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Internal Combustion Engines
Thermal efficiency of a two stroke cycle engine is ___ a four stroke cycle engine.

Greater than
Equal to
None of the listed here
Less than

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Internal Combustion Engines
As a result of detonation in an I.C. engine, following parameter attains very high value

Peak temperature
Rate of rise of pressure
Peak pressure
Rate of rise of temperature

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Internal Combustion Engines
In compression ignition engines, swirl denotes a

None of the listed here
Radial motion of the gases in the chamber
Rotary motion of the gases in the chamber
Haphazard motion of the gases in the chamber

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

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

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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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