Difficulty: Easy
Correct Answer: Copper tubing
Explanation:
Introduction / Context:Nonferrous materials contain little to no iron and often provide superior corrosion resistance and workability for certain services. Designers frequently choose among copper, aluminum, and plastics depending on pressure, temperature, and medium.
Given Data / Assumptions:
Concept / Approach:Copper tubing is a classic nonferrous choice: it resists corrosion in potable water systems, brazes/solders readily, and has predictable pressure ratings. It is stocked in standard sizes and compatible with a wide range of fittings and valves.
Step-by-Step Solution:
List nonferrous candidates in the options.Identify copper as the only nonferrous metal option listed that is routinely used as tubing for building services.Confirm suitability for common nonferrous applications (plumbing, HVAC).Select copper tubing.Verification / Alternative check:Check plumbing standards; copper tube types K, L, and M are widely specified for water services.
Why Other Options Are Wrong:
Common Pitfalls:Equating nonferrous strictly with nonmetallic; while plastics are nonferrous, the conventional interpretation in construction favors metals like copper for this phrasing.
Final Answer:Copper tubing
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