Asked by Sarah Holtby on Jun 22, 2024
Verified
Which types of foundation brakes are used on air-brake equipped trucks and trailers?
A) S-cam-actuated
B) air disc brakes
C) air wedge-actuated
D) all of the above
Foundation Brakes
The braking components downstream from the actuator that mechanically effect braking on a wheel. In a truck S-cam brake assembly, the foundation brakes consist of a slack adjuster, an S-camshaft, brake shoes, and a drum.
S-Cam-Actuated
Describes a type of brake system, particularly in heavy vehicles, where the braking action is initiated by the rotation of an S-shaped cam.
Air Disc Brakes
Air disc brakes are a type of brake system for heavy-duty vehicles that use air pressure to apply pressure to a disc, slowing or stopping the vehicle.
- Understand the foundational brake mechanisms used in trucks and trailers and how they are actuated.
Verified Answer
DO
Destanee ONeilJun 27, 2024
Final Answer :
D
Explanation :
All of the listed types, S-cam-actuated, air disc brakes, and air wedge-actuated, are types of foundation brakes used on air-brake equipped trucks and trailers.
Learning Objectives
- Understand the foundational brake mechanisms used in trucks and trailers and how they are actuated.