A pinion gear and rack are components of which type of steering system?

The correct answer is rack and pinion steering because this type of steering system specifically utilizes the mechanism of a pinion gear and a rack. In this system, the pinion gear is connected to the steering wheel and meshes with a linear gear called the rack. This unique setup converts the rotational motion of the steering wheel into linear motion, allowing for the wheels of the vehicle to turn.

Rack and pinion steering is widely used in most modern vehicles due to its simplicity, compact design, and efficiency in providing a direct steering response. It offers an accurate and responsive feel that is essential for steering control.

In contrast, power steering refers to systems that assist the driver with hydraulic or electronic assistance to make steering easier but does not inherently define the mechanism used for steering. Hydraulic steering involves a fluid-driven mechanism to enhance steering effort but may not employ a rack and pinion configuration specifically. Ball and socket steering is not a recognized term in the context of standard automotive steering systems and typically refers to joints rather than steering mechanisms.