For which of the following reasons is a linear actuator fitted with a cushioning device?

Correct Answer: Option B — To slow the action of the piston preventing shock and damage due to hammering effects.

Cushioning devices utilize a tapered plunger or needle valve at the end of a cylinder stroke to restrict fluid exhaust. This creates backpressure, decelerating the piston gradually to prevent mechanical impact, shock loading, and potential structural damage to the actuator or connected machinery components.