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

Correct Answer: Ignition of the charge before the passage of flame front

The auto ignition in a spark ignition engine means Ignition of the charge before the passage of flame front
Bissoy MCQ
#Mechanical Engineering #Automobile Engineering

Related Questions

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
In order to prevent knocking in spark ignition engines, the charge away from the spark plug should have
A Low density
B Low temperature
C Long ignition delay
D All of these
The advancing of spark timing in spark ignition engines will _________ knocking tendency.
A Increase
B Reduce
C Not effect
D None of these
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
If 'blue' means 'green', green' means 'yellow' 'yellow' means 'orange', 'orange' means 'black', 'black' means 'white', 'white' means 'red', 'red' means 'pink', 'pink' means 'brown', 'brown' means 'grey', than what is the color of human blood?
A black
B red
C white
D orange
The ignition of the charge by some hot surface within the engine before the passage of spark is called
A Pre-ignition
B Detonation
C Ignition delay
D Auto-ignition
Which of the following does not relate to a spark ignition engine?
A Ignition coil
B Spark plug
C Carburettor
D Fuel injector
The method of determination of indicated power of a multi cylinder spark ignition engine is by the use of
A Morse test
B Prony brake test
C Motoring test
D Heat balance test
If the air-fuel mixture in a spark ignition engine is too rich, then air-fuel ratio is about
A 17 : 1
B 15 : 1
C 13 : 1
D 10 : 1

Next steps