INTERNAL COMBUSTION ENGINES QUIZ

Induce primary swirl

Induce secondary turbulence

Control air flow

Enhance flow rate

At the crank shaft

None of these

At the crank pin

In the engine cylinder

Delayed burning of the first part of the charge

Instantaneous auto ignition of last part of charge

Instantaneous and rapid burning of the first part of the charge

Reduction of delay period

100

120

50

More efficient

Less efficient

None of the listed here

Equally efficient

Supercharging at high altitudes is essential

Supercharging results in fuel economy

Supercharging reduces knocking in diesel engines

There can be limited supercharging in petrol engines because of detonation

None of these

Decrease

Increase

Not effected

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

252 cm3

286 cm3

264 cm3

248 cm3