INTERNAL COMBUSTION ENGINES QUIZ

Cylinder walls being too hot

Overheated spark plug points

Red hot carbon deposits on cylinder walls

Any one of the listed here

Both (A) and (B)

Increasing the engine speed

Retarding the spark

None of these

May start and end anywhere

Starts at 15° before top dead center and ends at 30° after top dead center

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

Starts at 15° after top dead center and ends at 30° before bottom dead center

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

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

Higher heating value

Higher flash point

Longer ignition delay

Lower volatility

270°

130°

180°

230°

40 to 60%

30 to 40%

60 to 70%

75 to 90%

2000°C

250°C

1000°C

500°C

Acceleration in the rate of combustion

Increase in detonation

Any one of these

Pre-ignition

Controlling valve opening/closing

Injection

Governing

Carburetion