INTERNAL COMBUSTION ENGINES QUIZ

Supercharging reduces knocking in diesel engines

Supercharging at high altitudes is essential

Supercharging results in fuel economy

There can be limited supercharging in petrol engines because of detonation

Lead

None of these

Alcohol

Water

1 - rγ - 1

None of these

1 - (1/rγ - 1)

1 + rγ - 1

Less than

Equal to

None of the listed here

Greater than

Speed of engine

Fuel used

Compression ratio

None of these

0.50069444444444

0.75069444444444

0.37569444444444

0.62569444444444

30 kW four-stroke petrol engine running at 1500 r.p.m.

30 kW two-stroke petrol engine running at 1500 r.p.m.

30 kW two-stroke diesel engine running at 750 r.p.m.

30 kW four-stroke diesel engine running at 750 r.p.m.

None of the listed here

Increase

Have no effect on

Decrease

Gasoline

Kerosene

Natural gas

Paraffin

V₀ / (V₀ + V₁)

2V₀ / (V₀ + V₁)

V₁ / (V₀ + V₁)

2V₁ / (V₀ + V₁)