INTERNAL COMBUSTION ENGINES QUIZ

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

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

Starts at bottom dead centre and ends at top dead centre

May start and end anywhere

4-stroke cycle engines

2-stroke cycle engines

High efficiency engines

Aeroplane engines

To some extent

No

Unpredictable

Yes

Arrangement of the cylinders

Design of crankshaft

Number of cylinders

All of these

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

Induce secondary turbulence

Induce primary swirl

Control air flow

Enhance flow rate

None of these

Temperature

Volume

Density

Both Otto and Diesel cycles are, equally efficient

Diesel cycle is more efficient than Otto

Compression ratio has nothing to do with efficiency

Otto cycle is more efficient than the Diesel

Fuel pump

Carburettor

Fuel injector

Governor

May start and end anywhere

Fuel injection starts at just before top dead center and ends just after top dead center

Fuel injection starts at 10° before top dead center and ends at 20° after top dead center

Fuel injection starts at top dead center and ends at 20° after top dead center