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Internal Combustion Engines

Internal Combustion Engines
The fuel in diesel engine is normally injected at pressure of

5-10 kg/cm²
60-80 kg/cm²
20-25 kg/cm²
90-130 kg/cm²

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Internal Combustion Engines
The reference fuels for knock rating of spark ignition engines would include

Iso-octane and alpha-methyl naphthalene
Normal octane and aniline
Normal heptane and iso-octane
Iso-octane and normal hexane

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Internal Combustion Engines
The probability of knocking in diesel engines is increased by

Higher viscosity
All of these
Low volatility
High self ignition temperature

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Internal Combustion Engines
The pressure and temperature at the end of compression stroke in a petrol engine are of the order of

4-6 kg/cm² and 200-250°C
20-30 kg/cm² and 450-500°C
6-12 kg/cm² and 250-350°C
12-20 kg/cm² and 350-450°C

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

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

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Internal Combustion Engines
In petrol engines, advancing of the spark timing will ___ the knocking tendency.

Increase
Not effect
Decrease
None of the listed here

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MORE MCQ ON Internal Combustion Engines

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