Practice question

On a combination chamber, the service brake pushrod and the spring brake act through:

Completely separate, independent linkages to different wheels
Two different camshafts on the same wheel
A shared pushrod so either the service air or the power spring can apply the foundation brake
A hydraulic coupling

Answer: C — A shared pushrod so either the service air or the power spring can apply the foundation brake

The correct answer is shown above. Try the full quiz for additional practice.