Which sprinkler type is installed on walls to improve coverage in certain layouts?

• A. Sidewall Sprinklers
• B. Pendent Sprinklers
• C. Upright Sprinklers
• D. Concealed Sprinklers

Answer: (C)

The concept being tested is how sprinkler mounting location affects coverage. Sidewall sprinklers are designed to be installed on walls so their spray is directed from the wall into the room. This wall-mounted arrangement helps achieve better coverage in layouts where ceiling-mounted sprinklers would leave gaps near walls, corners, or around room obstructions. They’re especially useful in spaces with furniture along the walls or irregular ceiling geometries because the spray can reach areas that pendent or upright sprinklers might miss.

In contrast, pendant sprinklers hang from the ceiling and spray downward into the space; upright sprinklers are mounted on top of the ceiling piping and spray upward; and concealed sprinklers are hidden behind a cover plate for aesthetics. So for improving wall-adjacent coverage, the wall-mounted option is the sidewall sprinkler.