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Internal Combustion Engines

Internal Combustion Engines
A stoichiometric air-fuel ratio is

Lean mixture
Rich mixture for idling
Chemically correct mixture
Rich mixture for over loads

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Internal Combustion Engines
A carburettor is used to supply

Air and diesel
Petrol, air and lubricating oil
Petrol and air
Petrol and lubricating oil

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Internal Combustion Engines
If the temperature of intake air in internal combustion engine increases, then its efficiency will

Increase
Remain same
None of the listed here
Decrease

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Internal Combustion Engines
Which of the following fuel detonates readily?

Iso-octane
Alcohol
Normal heptane
Benzene

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Internal Combustion Engines
The working pressure and temperature inside the cylinder of an internal combustion engine is _________ as compared to a steam engine.

Very high
Very low
Low
High

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Internal Combustion Engines
The spark ignition engines are governed by

Combination of (B) and (C)
Hit and miss governing
Quantitative governing
Qualitative governing

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