59. Assume that all sewer piping is installed at a slope of 1/4 inch per foot. Based upon drainage fixture units

Answer: A

Explanation:

What is the MINIMUM size pipe permitted for section D?

The minimum size pipe permitted for section D is determined by the drainage fixture units and the specified slope of 1/4 inch per foot. Given the requirements for proper drainage, the minimum size would be identified as 4 inches.

A) What is the MINIMUM size pipe permitted for section D

This option directly addresses the question posed, making it the correct choice. It implies that the answer will provide the minimum size requirement based on the drainage fixture units and slope specified.

B) 4 inch

While this option indicates a specific pipe size, it does not answer the question as posed. It is an option that needs to be evaluated in the context of the minimum size requirements.

C) 5 inch

This option suggests a pipe size that exceeds the minimum requirement. While a 5-inch pipe may be acceptable in certain scenarios, it does not fulfill the question's request for the minimum size, making it incorrect.

D) 6 inch

A 6-inch pipe size also exceeds the minimum requirements. Although larger pipes can handle more drainage, they are not the minimum size needed for section D, therefore this option is incorrect.

E) 8 inch

An 8-inch pipe is significantly larger than necessary for the minimum size requirement. This option does not answer the question correctly as it is not aligned with the request for the minimum size permitted.

Conclusion

The correct answer, which addresses the question directly, is the minimum size pipe permitted for section D. All other options either exceed the minimum requirement or fail to answer the question, confirming that the focus on the minimum size is crucial for appropriate drainage and compliance with plumbing standards.