Final answer:
The recommended slope for waste plumbing is typically ¼ inch per foot. This ensures proper wastewater flow to prevent clogs. Plumbing installation must adhere to this guideline for system efficiency. The correct answer is A.
Step-by-step explanation:
The recommended slope for waste plumbing is typically ¼ inch per foot (½ inch per foot). This slope ensures that wastewater moves through the pipes at the right speed, helping to prevent clogs and maintaining the flow so that the system works efficiently and effectively. It is essential to follow these guidelines during installation to avoid future plumbing problems.
When examining the physics behind the flow of water in pipes, one might consider the scenario where a horizontally oriented pipe with a diameter of 5.6 cm is filled with water. If a force of 440 N is applied by a plunger, the resulting water speed at the pipe's exit can be determined by applying principles of fluid dynamics. This involves calculations using the continuity equation and Bernoulli's principle, though the answer to the specific speed question provided is beyond the scope of plumbing slopes.