Question

Each movement of the piston either up or down the cylinder is called a ____?

1) stroke
2) compression
3) combustion
4) exhaust

Answer 1

Each movement of the piston either up or down the cylinder in a four-stroke internal combustion engine is called a stroke. The four strokes are: intake, compression, power, and exhaust.

Step-by-step explanation:

Each movement of the piston either up or down the cylinder is called a stroke. In a four-stroke internal combustion engine, the piston goes through four strokes: intake, compression, power, and exhaust. During the intake stroke, air and fuel are mixed, while the compression stroke compresses the air-fuel mixture. In the power stroke, the mixture is ignited, which leads to a great increase in pressure. Finally, the exhaust stroke expels the hot gas to prepare the engine for another cycle.