New Jersey Air Brakes Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Study for the New Jersey Air Brakes Test. Prepare with flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

At what pressure does the safety valve discharge automatically?

120 psi
130 psi
140 psi
150 psi

The correct answer is: 150 psi

The safety valve is a critical component in an air brake system designed to prevent over-pressurization by discharging air automatically at a predetermined pressure. For most air brake systems, the standard discharge pressure of the safety valve is set at 150 psi. This setting is crucial as it ensures that the system operates within safe limits, protecting against potential equipment damage and maintaining system integrity. When the pressure in the air brake system exceeds this level, the safety valve opens to release excess pressure, thereby preventing any risk of failure or malfunction. This automatic discharge feature helps maintain the balance necessary for effective braking performance, ensuring that the vehicle remains safe and operable. The specific discharge pressure of 150 psi reflects industry standards for air brake systems, established to ensure both safety and reliability in operation. Understanding this pressure setting is vital for anyone working with air brake systems, as it underlines the importance of regular maintenance and monitoring.