Which cylinder specification defines how far the piston can travel in one full cycle?

Which cylinder specification defines how far the piston can travel in one full cycle?

• A. Stroke
• B. Bore
• C. Rod length
• D. Capacitance

Answer: (A)

The main idea is the distance the piston moves between its extreme positions inside the cylinder. That distance is determined by the stroke. The piston travels from top dead center to bottom dead center (and back with the crank’s rotation), so the stroke sets how far it can move in each sweep of the cycle. In a four-stroke engine, a full operating cycle covers two revolutions of the crank, but the distance the piston moves in each sweep is defined by the stroke. Bore refers to the cylinder’s diameter and doesn’t set travel distance, rod length affects the motion geometry without changing how far the piston moves in a sweep, and capacitance is unrelated to piston travel. So the specification that defines how far the piston travels in one sweep (and thus per cycle) is the stroke.

The main idea is the distance the piston moves between its extreme positions inside the cylinder. That distance is determined by the stroke. The piston travels from top dead center to bottom dead center (and back with the crank’s rotation), so the stroke sets how far it can move in each sweep of the cycle. In a four-stroke engine, a full operating cycle covers two revolutions of the crank, but the distance the piston moves in each sweep is defined by the stroke. Bore refers to the cylinder’s diameter and doesn’t set travel distance, rod length affects the motion geometry without changing how far the piston moves in a sweep, and capacitance is unrelated to piston travel. So the specification that defines how far the piston travels in one sweep (and thus per cycle) is the stroke.