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Internal Combustion Engines

Internal Combustion Engines
In a diesel engine, the duration between the time of injection and ignition, is known as

Pre-ignition period
Delay period
Burning period
Period of ignition

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Internal Combustion Engines
Which of the following is false statement?

Detonation
Oil sludge in the engine crank case
Formation of hard coating on piston skirts
Piston ring and cylinder wear

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Internal Combustion Engines
The following volume of air is required for consuming 1 liter of fuel by a four stroke engine

56 m3
1 m3
5 m3
910 m3

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Internal Combustion Engines
The reflectivity depends upon

Energy of neutrons
All of these
Geometry of the reflector
Properties of the reflector

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Internal Combustion Engines
The air standard efficiency of an Otto cycle compared to diesel cycle for the given compression ratio is

Less
Same
More
More or less depending on power rating

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Internal Combustion Engines
Which of the following fuel has little tendency towards detonation?

Iso-octane
Normal heptane
Alcohol
Benzene

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