INTERNAL COMBUSTION ENGINES QUIZ

Higher

Same

None of these

Lower

In the engine cylinder

At the crank pin

At the crank shaft

None of these

Increase efficiency

Effect fuel economy

Reduce weight and bulk for a given output

Increase power

Increase

Decrease

None of these

Remain same

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

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

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

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

0.4 to 0.9 mm

0.2 to 0.8 mm

0.6 to 1.0 mm

0.3 to 0.7 mm

Low compression ratio

High thermal efficiency and power output

Minimum turbulence

Low volumetric efficiency

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

Carburettor

Governor

Fuel pump

Injector

Supercharging

Detonation

Scavenging

Polymerisation