Question

the movement of a piston from the top of its travel, to the bottom of its travel is referred to as:
a) compression
b) a cycle
c) a stroke
d) exhaust

Explanation:

In an engine, the movement of a piston from the top - dead center to the bottom - dead center is called a stroke. Compression is the process of reducing the volume of the combustion chamber. A cycle is a complete sequence of events in the engine. Exhaust is the process of expelling burned gases.

Answer:

C. A stroke