Correct option is A
A rack and pinion is a gear system where a small gear (pinion) meshes with a straight, infinitely large gear (rack).
· A rack is essentially a gear with an infinitely large pitch circle radius, meaning it is a straight-line version of a gear.
· The pinion is a small rotating gear that moves the rack linearly.
· This system is used to convert rotational motion into linear motion.
Applications of Rack and Pinion:
· Steering systems in automobiles.
· CNC machine tool drives.
· Railway track switching mechanisms.
· Elevators and sliding gates.
