You have a major leak in the service line, and you apply the brakes. Service air pressure will escape and cause the
a) Tractor spring brakes to lock on
b) Trailer emergency brakes to come on
c) Trailer tank pressure to be lost
Answer: b) Trailer emergency brakes to come on
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.