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Internal Combustion Engines

Internal Combustion Engines
The loud pulsating noise heard within the cylinder of an internal combustion engine is known as

Supercharging
Detonation
Turbulence
Pre-ignition

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

50
0
120
100

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Internal Combustion Engines
A diesel engine has compression ratio from

25 to 40
10 to 15
15 to 25
6 to 10

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Internal Combustion Engines
The knocking in spark ignition engines can be reduced by

Both (A) and (B)
Retarding the spark
None of these
Increasing the engine speed

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Internal Combustion Engines
For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of

0.75069444444444
0.50069444444444
0.37569444444444
0.62569444444444

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Internal Combustion Engines
The calorific value of gaseous fuels is expressed in terms of

kcal/kg
kcal/m3
kcal/m²
kcal

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MORE MCQ ON Internal Combustion Engines

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