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Internal Combustion Engines

Internal Combustion Engines
The ignition quality of diesel oil is expressed by

Cetane number
None of the listed here
Calorific value
Octane number

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Internal Combustion Engines
In order to eliminate knocking in compression ignition engines, there should be

High self ignition temperature of fuel
Late auto-ignition
Low compression ratio
Short delay period

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Internal Combustion Engines
The reason for supercharging in any engine is to

Effect fuel economy
Increase efficiency
Increase power
Reduce weight and bulk for a given output

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Internal Combustion Engines
All heat engines utilize

Low heat value of oil
High heat value of oil
Calorific value of fuel
Net calorific value of oil

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Internal Combustion Engines
The ignition of the charge by some hot surface within the engine before the passage of spark is called

Auto-ignition
Detonation
Ignition delay
Pre-ignition

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

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

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MORE MCQ ON Internal Combustion Engines

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