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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

Detonation
Pre-ignition
Supercharging
Turbulence

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Internal Combustion Engines
The thermal efficiency of diesel engines is about

0.15
0.5
0.7
0.3

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Internal Combustion Engines
The self ignition temperature of petrol is _________ as compared to diesel oil.

Higher
None of these
Lower
Same

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

50
120
0
100

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Internal Combustion Engines
The Cipoletti weir is a __________ weir.

Rectangular
Circular
Triangular
Trapezoidal

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Internal Combustion Engines
Diesel engine can work on very lean air fuel ratio of the order of 30: 1. A petrol engine can also work on such a lean ratio provided

Best quality fuel is used
It is properly designed
Cannot work as it is impossible
Flywheel size is proper

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MORE MCQ ON Internal Combustion Engines

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