BC Class 2 Bus Practice Questions - British Columbia Class 2 Commercial Bus Driver's License Knowledge Test Exam

What is the purpose of the tractor protection valve or supply valve in relation to a bus towing a trailer?

To increase the air pressure to the trailer brakes To protect the bus's air brake system by shutting off air flow to the trailer if a leak occurs in the trailer lines To control the slack adjusters on the trailer To prevent the trailer from jackknifing during braking

Correct Answer:

To protect the bus's air brake system by shutting off air flow to the trailer if a leak occurs in the trailer lines

Access more questions from this quiz

Continue to BC Class 2 Bus Practice Questions - British Columbia Class 2 Commercial Bus Driver's License Knowledge Test Exam for more practice questions and the full quiz experience.

Access More Questions