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Internal Combustion Engines

Internal Combustion Engines
A higher compression ratio causes

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

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Internal Combustion Engines
During idling, a petrol engine requires _________ mixture.

None of these
Lean
Rich
Chemically correct

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Internal Combustion Engines
Iso-octane (C₈H₁₈) has octane number of

0
120
50
100

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Internal Combustion Engines
Polymerization is a chemical process in which molecules of a compound become

Liquid
Smaller
Slowed down
Larger

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Internal Combustion Engines
Excess quantities of sulphur in diesel fuel are Objectionable because it may cause the following

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Internal Combustion Engines
Which of the following fuel has little tendency towards detonation?

Iso-octane
Normal heptane
Benzene
Alcohol

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