A pinion gear, rack, dust boots, and tie rods are all components of what type of steering system?

The pinion gear, rack, dust boots, and tie rods are all integral parts of a rack and pinion steering system. In this system, the pinion gear converts the rotational motion of the steering wheel into the linear motion of the rack, which moves the tie rods and ultimately turns the wheels of the vehicle. The rack is a straight bar with teeth that engage with the teeth of the pinion gear, allowing for precise steering control.

Dust boots play a crucial role by protecting the tie rods and the rack and pinion assembly from dirt and moisture, thereby prolonging the life of the steering components. This configuration is widely used in modern vehicles due to its simplicity and effectiveness in providing quick and responsive steering.

The other types of steering systems mentioned do not incorporate these specific components in the same manner. For example, the power steering system refers to the overall mechanism that reduces the steering effort through hydraulic or electric assistance but does not inherently define the mechanical linkage of the rack and pinion. Similarly, I-Beam and parallelogram steering systems involve different configurations and linkages that do not utilize the pinion gear and rack setup. Therefore, the rack and pinion option accurately describes the specific components listed in the question.