INTERNAL COMBUSTION ENGINES QUIZ

Starts at 40° after bottom dead centre and ends at 30° before top dead centre

Starts at bottom dead centre and ends at top dead centre

May start and end anywhere

Starts at 40° before bottom dead centre and ends at 30° after bottom dead centre

More

Same

Less

May be more or less depending on engine capacity

More than stroke volume

Less than stroke volume

Equal to stroke volume and clearance volume

Equal to stroke volume

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

It catches fire without external aid

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

Temperature at which it solidifies or congeals

Starts at top dead center and ends at bottom dead center

Starts at 30° before top dead center and ends at 50° before bottom dead center

May start and end anywhere

Starts at 30° after top dead center and ends at 50° after bottom dead center

Ensure that penetration is not high

All of these

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

Inject fuel at a high velocity to facilitate atomization

Half the operating speed

One fourth of operating speed

250 - 300 rpm

60 - 80 rpm

Cetane and normal heptane

Cetane and alpha-methyl naphthalene

Cetane and tetra ethyl lead

Cetane and iso-octane

Prony brake test

Morse test

Motoring test

Heat balance test

Violet

Black

White

Bluish