+1 vote
in Machine Dynamics by (34.3k points)
4 strokes engine have a lower thermal efficiency than 2 stroke engine.

(a) True

(b) False

The question was posed to me in homework.

This intriguing question comes from Turning Moment Diagram for a Four Stroke Cycle Internal Combustion Engine in division Turning Moment Diagrams and Flywheel of Machine Dynamics

1 Answer

0 votes
by (38.6k points)
The correct choice is (b) False

The best I can explain: 4-stroke IC engines despite having low power output per cycle have a higher thermal efficiency than a 2 stroke cycle because in 2 stroke engines, the fuel escapes with the exhaust.

Related questions

We welcome you to Carrieradda QnA with open heart. Our small community of enthusiastic learners are very helpful and supportive. Here on this platform you can ask questions and receive answers from other members of the community. We also monitor posted questions and answers periodically to maintain the quality and integrity of the platform. Hope you will join our beautiful community
...