INTERNAL COMBUSTION ENGINES QUIZ

Exhaust valve opens at bottom dead center and closes at top dead center

May open and close anywhere

Exhaust valve opens just after bottom dead center and closes just before top dead center

Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center

Less

Same

May be more or less depending on engine capacity

More

60 to 80

40 to 60

20 to 40

80 to 100

Dependent on other factors

Lower

Unaffected

Higher

0.08

0.14

0.04

0.02

Hit and miss governing

Higher maximum temperature

Qualitative governing

Quantitative governing

30 to 40%

60 to 70%

40 to 60%

75 to 90%

May increase or decrease depending on other factors

Decrease

Be independent

Increase

2V₀ / (V₀ + V₁)

V₁ / (V₀ + V₁)

V₀ / (V₀ + V₁)

2V₁ / (V₀ + V₁)

Clearance volume

Effective compression ratio

Volumetric efficiency

Ignition time