Sample interview questions: Can you explain the process of installing gas lines in new construction projects?
Sample answer:
Step 1: Design and Permitting
- Determine gas load and pipe sizing based on project specifications.
- Create detailed scale drawings as per local building codes and submit for permit approval.
Step 2: Material Preparation
- Gather necessary materials, including pipe (black steel or copper), fittings, valves, and appliances.
- Cut and thread pipes using power tools or hand tools as per specified lengths and angles.
Step 3: Rough-in
- Install pipe supports, clamps, and hangers to secure lines according to code.
- Run gas lines through studs, joists, and other framing members, ensuring proper support and concealment.
- Connect appliances, such as furnaces, water heaters, and ranges, temporarily using flexible gas connectors.
Step 4: System Pressure Test
- Presurize gas lines with nitrogen or air to test for leaks.
- Use a manometer to monitor pressure drop, indicating potential leaks.
Step 5: Gas Leak Detection
- Utilize a flammable gas detecto… Read full answer
Source: https://hireabo.com/job/12_0_12/Gasfitter