Sample interview questions: Are you knowledgeable about different types of gas pipe materials and their advantages/disadvantages?
Sample answer:
Knowledge of Gas Pipe Materials
Copper
- Advantages:
- Durable and corrosion-resistant
- Malleable and easy to shape
- Long lifespan (50+ years)
- Disadvantages:
- Expensive
- Requires skilled installation
- Can become brittle over time
Galvanized Steel
- Advantages:
- Relatively inexpensive
- Strong and rigid
- Disadvantages:
- Susceptible to corrosion
- Can clog with rust and debris
- Shorter lifespan (20-30 years)
Black Steel
- Advantages:
- Durable and strong
- Less expensive than copper
- Disadvantages:
- Highly susceptible to corrosion
- Requires protective coatings or galvanization
- Difficult to work with and requires specialized tools
Polyethylene (PE)
- Advantages:
- Flexible and easy to install
- Corrosion-resistant
- Lightweight
- Disadvantages:
- Not as strong as metal pipes
- Can degrade under UV ligh… Read full answer
Source: https://hireabo.com/job/12_0_12/Gasfitter