Refresher Practical Problems Test 2025 – 400 Free Practice Questions to Pass the Exam

Galvanized steel is commonly used for fire sprinkler pipes due to its durability and resistance to corrosion. The galvanization process, which involves coating steel with a layer of zinc, enhances its ability to withstand moisture and various chemicals that may be present in environments where fire suppression systems are installed. This material can endure high pressures and temperatures, making it suitable for the demands of a fire sprinkler system. Moreover, galvanized steel maintains structural integrity over time, supporting the reliable operation of the fire protection system.

In contrast, plastic, while lighter and resistant to corrosion, may not handle extreme temperatures as effectively as galvanized steel, which can be crucial in a fire scenario. Copper, on the other hand, is often used in other plumbing applications due to its excellent heat conducting properties but is generally more expensive than galvanized steel for large-scale fire systems. Wood is unsuitable because it is combustible and poses a significant fire hazard, making it an impractical choice for any fire suppression application.