Which of the following is a pressure test point used in the pressure control service test?

• A. 90 PSI
• B. 150 PSI
• C. 250 PSI
• D. 350 PSI

Answer: (B)

In this test, the key idea is to use a standard reference pressure that represents normal operating conditions for the pressure control system, so you can check that the regulator can hold pressure and respond correctly to flow changes without stressing the components.

The pressure point chosen is 150 psi because it sits in the typical operating range for the pressure control circuit. It’s high enough to reveal whether the regulator maintains the set pressure and handles changes in demand, yet within safe limits for the equipment. Pressures that are too low, like 90 psi, wouldn’t adequately challenge the regulator, and pressures well above normal service levels, such as 250 or 350 psi, could exceed what the system is designed to test and risk damage or mislead results. So 150 psi is the appropriate standard test point for the pressure control service test.