Question

what component in the manual parking brake system presses the brake pads against the rotor in a thrust screw/ball type parking brake assembly?
a) brake lever
b) caliper piston
c) actuator lever
d) parking brake cable

Explanation:

In a thrust screw/ball - type manual parking brake system, the caliper piston is the component that presses the brake pads against the rotor. The brake lever is used to initiate the parking brake action by pulling the parking brake cable. The parking brake cable transmits the force from the brake lever to the parking brake assembly. The actuator lever may be part of the mechanism that converts the cable pull into rotational or linear motion for the parking brake, but it is the caliper piston that directly applies the force to the brake pads to press them against the rotor.

Answer:

B. Caliper piston