Red Seal Sheet Metal Worker Practice Exam

What characteristic makes a material suitable for outdoor ductwork?

1. Corrosion resistance

2. Weather resistance

3. Lightweight design

4. Electrical conductivity

The correct answer is: Weather resistance

A material that is suitable for outdoor ductwork must possess certain characteristics to ensure it can withstand environmental challenges. Weather resistance is crucial as outdoor ductwork is directly exposed to various elements, including rain, snow, UV radiation, and temperature fluctuations. A weather-resistant material helps prevent degradation over time, ensuring durability and longevity in outdoor conditions. While corrosion resistance is also important, as it protects materials from rust and decay in moist environments, it is a more specific aspect of a broader weather resistance characteristic. Lightweight design can be advantageous in some cases, but it does not address the critical need to withstand the elements in outdoor environments. Electrical conductivity is not relevant for ductwork, as it primarily concerns non-electrical applications. Thus, the emphasis on weather resistance highlights its vital role in maintaining the integrity and function of outdoor ductwork.