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Internal Combustion Engines

Internal Combustion Engines
Alpha-methyl-naphthalene (C₁₁ H₁₀) has a cetane number of

100
50
0
120

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Internal Combustion Engines
Number of working strokes per min. for a two stroke cycle engine is ____ the speed of the engine in r.p.m.

Twice
Four-times
Equal to
One-half

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Internal Combustion Engines
If the temperature of intake air in internal combustion engine increases, then its efficiency will

Decrease
Remain same
Increase
None of the listed here

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

100
50
120

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Internal Combustion Engines
In a four stroke cycle petrol engine, the charge is ignited at

30° after top dead center
30° before top dead center
30° before bottom dead center
30° after bottom dead center

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Internal Combustion Engines
Theoretically, a four stroke cycle engine should develop _________ power as that of a two stroke cycle engine.

Four times
Half
Same
Double

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