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Internal Combustion Engines

Internal Combustion Engines
The pressure at the end of compression, in petrol engines, is approximately

25 bar
20 bar
35 bar
10 bar

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Internal Combustion Engines
The colour of exhaust from diesel engine is generally

Bluish
White
Violet
Black

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Internal Combustion Engines
The air standard efficiency of an I.C. engine depends on

Speed of engine
Compression ratio
Fuel used
None of these

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Internal Combustion Engines
The normal heptane (C₇H₁₆) is given a rating of ________ octane number.

50
120
100

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Internal Combustion Engines
The thermal efficiency of diesel engines on weak mixtures is

Lower
Higher
Dependent on other factors
Unaffected

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Internal Combustion Engines
Which of the following is false statement?Excess quantities of sulphur in diesel fuel are Objectionable because it may cause the following

Formation of hard coating on piston skirts
Piston ring and cylinder wear
Oil sludge in the engine crank case
Detonation

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