Question

The driver of a truck with air brakes says it has poor stopping power. Any of these could be the cause EXCEPT:

(A) the quick release valve exhaust port is plugged.
(B) the air pressure is too low.
(C) the application line is restricted.
(D) the brakes are out of adjustment

Answer 1

The quick release valve exhaust port being plugged is NOT a cause of poor stopping power in a truck with air brakes. Potential causes of poor stopping power include low air pressure, a restricted application line, and brakes being out of adjustment.

Step-by-step explanation:

The driver of a truck with air brakes may experience poor stopping power due to various factors. However, the quick release valve exhaust port being plugged is NOT a cause of poor stopping power.

Some potential causes of poor stopping power in a truck with air brakes include:

1. The air pressure being too low
2. The application line being restricted
3. The brakes being out of adjustment

It is important to address these issues to ensure proper functioning of the air brakes.