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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 65
Cetane number 35
Octane number 65
Octane number 35

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Internal Combustion Engines
The rating of a diesel engine, with increase in air inlet temperature, will

Decrease parabolically
Decrease linearly
Increase parabolically
Increase linearly

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Internal Combustion Engines
The voltage required to produce a spark across the gap, between the sparking points is

4000 to 6000 volts
2000 to 4000 volts
10,000 to 12,000 volts
6000 to 10,000 volts

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Internal Combustion Engines
In a petrol engine, the fuel supplied to the engine cylinder is mixed with required quantity of air and the mixture is ignited with a

Fuel injector
Fuel pump
Spark plug
None of these

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Internal Combustion Engines
Crankcase explosion in I.C. engines usually occurs as

First a big explosion followed by a mil explosion
Both mild and big explosions occurs simultaneously
First a mild explosion followed by a bi explosion
Never occurs

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Internal Combustion Engines
The knocking tendency in spark ignition engines may be decreased by

Reducing the compression ratio
Controlling the air-fuel mixture
Controlling the ignition timing
Controlling the exhaust temperature

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MORE MCQ ON Internal Combustion Engines

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