Cooperative Personnel Services Firefighter (CPS) Practice Exam 2025 – The All-in-One Guide to Master Your Firefighter Exam Success!

Setting the pressure lower than the Maximum Allowable Working Pressure (MAWP) poses a significant safety hazard during operations. The MAWP represents the maximum pressure at which a system is designed to operate safely. If the set pressure is below the MAWP, it can lead to scenarios where the pressure could unexpectedly rise above the set pressure during operation, resulting in system overloads.

This situation can trigger safety devices or relief valves, leading to the potential for a failure or catastrophic event if the system components are unable to handle the excessive pressure. Moreover, if the safety devices don't activate properly, it could result in equipment ruptures, explosions, or other hazardous incidents. Therefore, maintaining proper set pressures in relation to the MAWP is crucial for ensuring safe operations in any firefighting, industrial, or safety-critical context.