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Internal Combustion Engines

Internal Combustion Engines
A higher compression ratio causes

Pre-ignition
Increase in detonation
Acceleration in the rate of combustion
Any one of these

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

0
100
120
50

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Internal Combustion Engines
The Cipoletti weir is a __________ weir.

Trapezoidal
Circular
Triangular
Rectangular

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Internal Combustion Engines
A diesel engine as compared to petrol engine (both running and rated load) is

More efficient
Less efficient
Equally efficient
Other factors will decide it

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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?

Yes
No
To some extent
Unpredictable

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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

43832
2
1
4

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