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Internal Combustion Engines

Internal Combustion Engines
The pressure at the end of compression, in petrol engines, is approximately

35 bar
20 bar
25 bar
10 bar

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Internal Combustion Engines
As a result of detonation in an I.C. engine, following parameter attains very high value

Rate of rise of temperature
Peak pressure
Rate of rise of pressure
Peak temperature

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Internal Combustion Engines
In a naturally aspirated diesel engine, the air is supplied by

A vacuum chamber
An injection tube
A centrifugal blower
A supercharger

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Internal Combustion Engines
Scavenging is usually done to increase

Thermal efficiency
Speed
Fuel consumption
Power output

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Internal Combustion Engines
The injection pressure in a diesel engine is about

500 bar
150 bar
10 bar
100 bar

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

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