Question

During a static leakage test, the maximum leakage rate for a double combination vehicle is:

Answers

3 psi in one minute.

6 psi in one minute.

8 psi in one minute.

4 psi in one minute.

Explanation

When performing a static leakage test on a double combination vehicle with air brakes, the leakage rate should be no more than 3 psi in one minute. If air leaks from the air brake system at a quicker rate, the vehicle should not be driven because something likely needs to be repaired.

This questions appears in the following tests:

Colorado Air Brakes

Connecticut Class A Knowledge Test

Georgia Class B Knowledge Test