Red Seal Steamfitter/Pipefitter Practice Exam

What is a key requirement for gas line testing before use?

1. Temperature testing to ensure proper heating

2. Leak testing to ensure safety and prevent gas escapes

3. Pressure testing to validate system durability

4. Visual inspection for corrosion

The correct answer is: Leak testing to ensure safety and prevent gas escapes

Leak testing is essential for gas line systems to ensure safety and prevent any potential gas escapes. Gas leaks can pose significant hazards, including explosions and health risks from inhalation, making it crucial that all gas lines are thoroughly tested for leaks before they are put into service. This testing typically involves pressurizing the system and monitoring for any pressure drops, which would indicate a leak. While other methods like pressure testing can validate the system's durability and visual inspections can identify visible damage or corrosion, the primary focus in the context of ensuring the safety of gas lines before use is on leak testing. This process is a regulatory and safety requirement to protect both the system's users and the surrounding environment.