INTERNAL COMBUSTION ENGINES QUIZ

Indicated by 90% distillation temperature i.e., when 90% of sample oil has distilled off

It catches fire without external aid

Temperature at which it solidifies or congeals

Minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame

Heterogeneous

None of these

Homogeneous

Both (A) and (B)

Same

Variable

Less

More

0.25 kg

0.2 kg

0.15 kg

0.3 kg

Carburettor

Fuel injector

Fuel pump

Governor

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

Inject fuel at a high velocity to facilitate atomization

All of these

Ensure that penetration is not high

15 : 1

10 : 1

25 : 1

20 : 1

A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure

All of these

The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug

The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition

Cetane number 65

Octane number 65

Cetane number 35

Octane number 35

None of these

Decrease

Remain same

Increase