CDL Pre-trip Inspection Practice Exam

The power steering pump in a vehicle's power steering system is the component that is gear driven. It is responsible for circulating power steering fluid under pressure to the steering gear. This process enables easier steering by reducing the effort needed by the driver to turn the steering wheel. The pump's design typically incorporates gears, which create hydraulic pressure essential for the operation of the power steering system. This hydraulic assist helps in providing a smoother steering feel and aids in maneuverability, especially at lower speeds or when the vehicle is stationary. The other components, such as the power steering reservoir, power steering gear box, and power steering lines, serve different functions. The reservoir holds the power steering fluid, the gear box converts the hydraulic pressure into mechanical force to assist with steering, and the lines are responsible for transporting the fluid between these components. However, none of these components are gear driven like the power steering pump.