Which of the following statements is true regarding the adjustment for overpressure protection devices on LP-Gas systems?

The correct answer regarding the adjustment for overpressure protection devices on LP-Gas systems is that they must be adjusted to limit pressure to 2 PSI or less. This standard ensures safety by preventing excessive pressure that could lead to leaks or system failures. Overpressure protection devices, like relief valves, are critical components designed to monitor and manage pressure within LP-Gas systems.

Maintaining the pressure limit at or below 2 PSI is crucial for protecting both the system and users from potential hazards. When pressures exceed this limit, the integrity of the storage and distribution systems can be compromised, leading to dangerous situations such as explosions or equipment damage.

Other options suggest either inappropriate pressure limits or that no adjustments are necessary, which could jeopardize safety in LP-Gas systems. Properly adjusting these devices is essential to ensure compliance with regulations and to safeguard against risks associated with overpressure conditions.