Which statement best describes a mechanical drawing?

• A. It Focuses On The Foundation And Framing.
• B. It Shows The Arrangement Of Electrical Outlets And Lighting.
• C. It Depicts HVAC Systems And Related Equipment.
• D. It Documents The Routing Of Water Supply And Drainage.

Answer: (C)

The main concept being tested is what a mechanical drawing focuses on in building plans. A mechanical drawing shows the HVAC system and related equipment—the layout of heating, ventilation, and air conditioning components, including equipment like furnaces, boilers, chillers, air handlers, as well as the ductwork, vents, and associated piping and controls. This helps installers and coordinators know where these systems go and how they run through the building. The other descriptions pertain to different trades: structural drawings cover foundation and framing; electrical drawings depict outlets and lighting; plumbing drawings show water supply and drainage.