The hand valve should be used:
A. As a parking brake.
B. Only with the foot brake.
C. To test the trailer brakes.
Answer: C. To test the trailer brakes.
A. As a parking brake.
B. Only with the foot brake.
C. To test the trailer brakes.
Answer: C. To test the trailer brakes.
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.