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Internal Combustion Engines

Internal Combustion Engines
A supercharged engine as compared to an ordinary engine

Is lighter
Consumes less lubricating oil
All of these
Requires smaller foundation

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Internal Combustion Engines
In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of

250°C
500°C
1000°C
2000°C

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Internal Combustion Engines
Supercharging is the process of supplying the intake air to the engine cylinder at a density ___ the density of the surrounding atmosphere.

Equal to
Less than
None of the listed here
Greater than

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Internal Combustion Engines
The thermal efficiency of diesel engines on weak mixtures is

Higher
Unaffected
Dependent on other factors
Lower

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Internal Combustion Engines
The fuels in order of decreasing knock tendency for spark ignition engines are

Paraffin, napthene, aromatic
Napthene, paraffin, aromatic
Napthene, aromatics, paraffin
Paraffin, aromatic, napthene

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Internal Combustion Engines
In case of gas turbines, the gaseous fuel consumption guarantees are based on

Calorific value
Low heat value
Net calorific value
High heat value

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MORE MCQ ON Internal Combustion Engines

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