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Internal Combustion Engines

Internal Combustion Engines
The thermal efficiency of a petrol engine is _________ as compared to diesel engine.

Less
More
Same
None of these

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

120
100
50

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Internal Combustion Engines
The two reference fuels used for cetane rating are

Cetane and normal heptane
Cetane and tetra ethyl lead
Cetane and iso-octane
Cetane and alpha-methyl naphthalene

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Internal Combustion Engines
Does the supply of scavenging air at a density greater than that of atmosphere mean engine is supercharged?

No
Unpredictable
Yes
To some extent

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Internal Combustion Engines
In a petrol engine, if diesel is used, then the engine will

Not run
Run more efficiently
Run at high speed
Explode

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Internal Combustion Engines
The working cycle in case of four stroke engine is completed in following number of revolutions of crankshaft

4
2
1
43832

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MORE MCQ ON Internal Combustion Engines

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