You cross the air lines when hooking up to an old trailer. What will happen?
a) The brake lights will come on when the brake pedal is pressed
b) The hand valve will apply the tractor brakes instead of the trailer brakes
c) If the trailer has no spring brakes, you will be able to drive away but you won't have trailer brakes
Answer: c) If the trailer has no spring brakes, you will be able to drive away but you won't have 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.