2-stroke engine can run in any direction
In 4-stroke engine, a power stroke is obtained in 4-strokes
thermal efficiency of 4-stroke engine is more due to positive scavenging
petrol engines occupy more space than diesel engines for same power output.
homogeneous
heterogeneous
both (a) and (b)
laminar
5-10 kg/cm2
20-25 kg/cm2
60-80 kg/cm2
90-130 kg/cm2
0.15 kg
0.2 kg
0.25 kg
0.3 kg
80°C
120°C
180°C
240°C