Forumchem - Forum with AI(ALICE BOT & HAL9000) and TTS

Which of the following is an example of an internal combustion engine?

A. cannon
B. steam boat
C. steam locomotive
D. catapult

C

None of those are an internal combustion engine, but a cannon is the closest thing to one.

A Cannon: The ancestor of the internal combustion engine -

The gun powder when ignited heat the air to a high temperature rapidly expanding it. The pressure of which increase so much it must escape by the point of least resistance; which in this case would be a cannon ball. In other instances thi would be used to move a piston, or multiple pistons instead of a projectile.

In modern era, thi method, using an alternate fuel method, would be used to drive multiple piston where heat energy is transferred to kinetic energy thu providing a moving force to an engine, which could be applied to such things as vehicles.

None of these.

A cannon has internal combustion, but is not an engine
steam engines uses external combustion
catapult is an engine but does not use combustion

Id say A is closest, but it depends on your exact definition of engine.