INTERNAL COMBUSTION ENGINES QUIZ

The accumulation of carbon in a cylinder results in increase of

Volumetric efficiency

Clearance volume

Ignition time

Effective compression ratio

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following does not relate to a spark ignition engine?

Spark plug

Ignition coil

Fuel injector

Carburettor

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YOUR ANSWER : ?

A diesel engine as compared to petrol engine (both running and rated load) is

Less efficient

Equally efficient

More efficient

Other factors will decide it

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YOUR ANSWER : ?

The injection pressure in a diesel engine is about

100 bar

150 bar

500 bar

10 bar

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YOUR ANSWER : ?

If the speed of the engine is increased, the indicated power will

None of these

Remain same

Increase

Decrease

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The injector nozzle of a compression ignition engine is required to inject fuel at a sufficiently high pressure in order to

All of these

Inject fuel at a high velocity to facilitate atomization

Ensure that penetration is not high

Inject fuel in a chamber of high pressure at the end of compression stroke

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YOUR ANSWER : ?

Excess quantities of sulphur in diesel fuel are Objectionable because it may cause the following

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Supercharging is essential in

Aircraft engines

Diesel engines

Petrol engines

Gas turbines

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YOUR ANSWER : ?

A carburettor is used to supply

Petrol, air and lubricating oil

Air and diesel

Petrol and air

Petrol and lubricating oil

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YOUR ANSWER : ?

If the temperature of intake air in internal combustion engine increases, then its efficiency will

Remain same

Decrease

None of the listed here

Increase

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YOUR ANSWER : ?

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