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Internal Combustion Engines

Internal Combustion Engines
A mixture containing 65% of iso-octane and 35% of normal heptane will have

Cetane number 35
Cetane number 65
Octane number 65
Octane number 35

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Internal Combustion Engines
A higher compression ratio causes

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

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Internal Combustion Engines
The magneto in an automobile is basically

D.C. generator
Capacitor
Magnetic circuit
Transformer

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Internal Combustion Engines
In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.

Above
None of these
Equal to
Below

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Internal Combustion Engines
The firing order in an I.C. engine depends upon

All of these
Number of cylinders
Design of crankshaft
Arrangement of the cylinders

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Internal Combustion Engines
In a four stroke cycle, the minimum temperature inside the engine cylinder occurs at the

End of exhaust stroke
End of suction stroke
Beginning of suction stroke
Beginning of exhaust stroke

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