【Daily Question】Utilities - Water Supply and Drainage - 20191013
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To prevent insects from entering the water tank, a mesh cover or other protective measures should be installed at the ( ) of the potable water tank. A. Inlet pipe, vent pipe B. Outlet pipe, overflow pipe C. Inlet pipe, outlet pipe D. Vent pipe, overflow pipe Answer: D is the correct answer. The inlet and outlet pipes in options A, B, and C do not have exposed ends, so insects cannot enter the pool through these pipes. In option D, the openings of the vent pipe and overflow pipe are exposed; in accordance with Article 3.2.12, Paragraph 1 of the current \"Code for Design of Building Water Supply and Drainage\", a mesh cover or other protective measures should be installed.
D. Vent pipe, overflow pipe
D. Vent pipe, overflow pipe