PPD PRACTICE TEST

Regarding the question below please, I don't understand why area drain would be a wrong answer?

Thank you

An architect is designing a children's playground in a residential development. The playground site is an open grass area that is prone to ponding rain water. The developer has asked the architect to reduce the ponding without regrading.

Which one of the following should the architect include in the playground design?

A.	Area drains
B.	Slotted concrete pavers
C.	Subsurface perforated piping
D.	Brick pavers with open joints

Your answer: A

Correct answer: C

CORRECT RESPONSE

Subsurface perforated piping

Subsurface perforated piping is used to control and remove soil moisture.

Victor Ralph Moreno January 17, 2023 01:21

An area drain handles a certain amount of square footage and requires many and then slope to each. The perf pipe has continuous subsurface drainage. This works best especially when you need to maintain a more level surface.

Adam D'Elia March 04, 2023 16:41 (Edited March 04, 2023 16:42)

Agreed Victor and to add...I believe there is a practical component to this question. It is a "children's playground", therefore exposed drains, concrete pavers, and brick pavers w/ open joints are all tripping hazards. The brick pavers open joints even hint at safety and ADA compliance.

Subsurface, or below grade drainage, satisfies/eliminates the civil engineering and saftey/ADA compliance messy stuff. Just my 2 cents.

PPD PRACTICE TEST

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