Asked by Rebecca Shumate on Jun 22, 2024
Verified
When system air pressure is routed into the trailer hold-off circuit,the parking brakes are:
A) 50% applied
B) 100% applied
C) 50% released
D) fully released
Hold-Off Circuit
A type of circuit used to delay or prevent the activation of part of a system until certain conditions are met.
System Air Pressure
The pressure of the air in a pneumatic system, which is critical for the operation of air-powered tools or vehicles.
Parking Brakes
A mechanism in vehicles designed to keep the vehicle stationary by mechanically locking the wheels, also known as a handbrake or emergency brake.
- Understand the process of routing system air pressure into the trailer hold-off circuit.
Verified Answer
LN
Lovely Nessa GuminiguinJun 25, 2024
Final Answer :
D
Explanation :
When system air pressure is routed into the trailer hold-off circuit, the parking brakes are fully released. This is because the hold-off circuit is designed to counteract the spring pressure that applies the brakes, thus releasing them.
Learning Objectives
- Understand the process of routing system air pressure into the trailer hold-off circuit.