The __________ provides all items necessary to test any of the plumbing drains or water lines within the building.

• A. Building inspector
• B. Plumbing contractor
• C. Municipal authority
• D. Architect

Answer: (B)

Testing a building’s plumbing network requires specific hardware and tools to verify that drains and water lines are leak-free and meet code. The person responsible for supplying those items and carrying out the tests is the plumbing contractor. They provide the necessary test fittings, caps, plugs, pressure gauges, and any special equipment needed to pressurize or seal sections of the system and demonstrate that each run holds pressure or water components as required. Building inspectors and municipal authorities oversee and enforce codes and perform inspections, but they don’t furnish the testing hardware. Architects design the system’s layout and details but do not supply test equipment. So, the plumbing contractor is the one who provides all items needed to test any of the plumbing drains or water lines within the building.