What is the purpose of obstruction guidelines in sprinkler placement?

• A. To ensure sprinklers are placed only for aesthetic reasons.
• B. To avoid obstructions that block the sprinkler spray pattern.
• C. To allow obstructions to reduce water damage.
• D. To require sprinklers in all closets.

Answer: (B)

The main concept is preserving the sprinkler’s spray distribution by keeping the area around the sprinkler clear. Obstructions near or in the spray path can block, deflect, or shadow part of the discharge, leading to uneven coverage or unprotected areas. Obstruction guidelines are there to ensure water from the sprinkler can reach the protected space as intended, so fire control is reliable.

The other options aren’t about this purpose. It isn’t about aesthetics, it isn’t about letting obstructions reduce water damage, and it doesn’t simply require sprinklers in all closets. The focus is on maintaining an unobstructed spray pattern to protect the space effectively.