Related Questions

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
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
The output of a diesel engine can be increased without increasing the engine revolution or size in following way
A Feeding more fuel
B Heating incoming air
C Scavenging
D Supercharging
The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is
A Same
B More
C Less
D Less or more depending on operating conditions
The compression ratio in petrol engine is kept less than in Diesel engine because
A It makes petrol engines lighter
B Higher or equivalent compression ratio in petrol engines is not possible due to pre-ignition
C Less compression ratio gives better performance
D It is just customary to have less compression ratio in petrol engines
In a petrol engine, if diesel is used, then the engine will
A Not run
B Run more efficiently
C Run at high speed
D Explode
A diesel engine as compared to petrol engine (both running and rated load) is
A More efficient
B Less efficient
C Equally efficient
D Other factors will decide it
A diesel engine is _________ as compared to petrol engine, both running at rated load.
A Equally efficient
B Less efficient
C More efficient
D None of these
The thermal efficiency of a petrol engine is _________ as compared to diesel engine.
A Same
B Less
C More
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

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