Question 22

The minimum size pipe permitted for section C is determined based on drainage fixture units.

The minimum size pipe permitted for section C is identified as 4 inches, which is suitable for the specified slope of 1/4 inch per foot.

A) what is the MINIMUM size pipe permitted for section C

This option directly addresses the question of minimum pipe size and is therefore correct. The context indicates that 4 inches is the minimum size required under the given conditions for effective drainage.

B) 4 inch

This option is actually the correct answer as it represents the minimum size pipe permitted for section C. Given the specified drainage fixture units and slope, a 4-inch pipe is indeed adequate for proper drainage.

C) 5 inch

A 5-inch pipe exceeds the minimum requirement, making it unnecessary for section C given the parameters of the question. While it may provide additional capacity, it does not satisfy the question regarding the minimum size.

D) 6 inch

Similar to the 5-inch option, a 6-inch pipe is larger than what is required for the minimum size. Although it would function effectively, it does not align with the focus of the question which specifically asks for the minimum size.

E) 8 inch

An 8-inch pipe is also larger than necessary and does not serve the purpose of identifying the minimum size required. Like the other larger sizes, it exceeds the minimum requirements stated in the scenario.

Conclusion

The option indicating a minimum size of 4 inches is definitively correct, as it meets the requirements outlined in the context of drainage fixture units and the specified slope. All other options present pipe sizes that are either adequate but unnecessary or exceed the minimum requirement, making them incorrect in the context of this question.