Saskatchewan Air Brake Practice Questions - Saskatchewan Air Brake (Endorsement A) Exam

Air is thinner than hydraulic fluid; relay valves compress it further to speed up transmission Air takes time to flow through long lines; relay valves speed up application by using a small air signal to release high-pressure air locally at the axles Engine power loss slows down air transmission; relay valves use electric pumps to compensate The slack adjuster takes time to move; relay valves lubricate the camshaft