In a diesel engine, the duration between the time of injection and ignition, is known as

A Pre-ignition period
B Delay period
C Period of ignition
D Burning period

Correct Answer: Delay period

In a diesel engine, the duration between the time of injection and ignition, is known as Delay periodDelay period is defined as the time immediately following injection of the fuel during which the ignition process is being initiated and the pressure does not rise beyond the value it would have due to compression of air.
Bissoy MCQ
#Mechanical Engineering #Internal Combustion Engines (I.C. Engines)

Related Questions

In Diesel engines, the duration between the time of injection and the time of ignition is called
A Spill cut-off
B Delay period
C Injection period
D Ignition period
A basic difference between the spark ignition engine and the Diesel engine is that the
A Diesel engine compresses air alone instead of an air-fuel mixture
B Air temperature ignites the fuel in the Diesel engine
C Fuel is sprayed into the combustion chamber in the Diesel engine as the piston nears T.D.on the compression stroke
D All of the above
The most accurate ignition system of a spark ignition engine is
A Magneto system
B Battery system
C Electronic control unit system
D Magneto and electronic system
The ignition in a spark ignition engine takes place when the piston is
A Exactly at the T.D.C. position on its compression stroke
B Approaching the T.D.C. position on its compression stroke
C Leaving the T.D.position on its compression stroke
D Approaching the T.D.C. position on its exhaust stroke
The auto ignition in a spark ignition engine means
A Automatic ignition of the charge at the end of compression
B Ignition induced by the passage of a spark
C Ignition of the charge before the passage of flame front
D Ignition induced to supplement the process of normal combustion
In diesel engine, ignition is caused by
A Spark
B Automatic starter
C Compression
D Friction
Ignition of fuel in a diesel engine is by
A Spark
B Hot compressed air
C Fuel injection
D None of these
The injection pressure in a diesel engine is about
A 10 bar
B 100 bar
C 150 bar
D 500 bar
In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of
A 250°C
B 500°C
C 1000°C
D 2000°C
In a engineering, test, a rocket sled is propelled into a target. If the sled's distance d in meters from the target is given by the fomula d = - 1.5 t2+120, where t is the number of seconds after rocket ignition, then how many seconds have passed since rocket ignition when the sled is 10 meters from the target?
A 2.58
B 8.59
C 8.94
D 9.31

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