Active Practice Session

Air Brakes #2

Question 9

For the S-cam drum brakes to work, they need air to be pushed into each brake chamber first. The force of the air pressure pushes the pushrod outward. The rod then moves _____, which makes ____ rotate.

A Pushrod; steering wheel B Kingpin; fifth wheel C Slack adjuster; brake camshaft D Slack adjuster; leaf spring

Select an answer to continue.