Which type of fire sprinkler system is used where damage from water to the contents or finishes of a building is a significant concern: A. wet-pipe B. dry-pipe C. pre-action D. deluge
What type of piling may be used as a ditch blocking or channel erosion control? A. Wood piles, B. Steel sheet piling, C. Plastic piling, D. Water inflated cofferdam, E. All of the above, F. None of the above
Unless stainless steel ties are specified, ACI (American Concrete Institute) recommends patching, partially filling or plugging the finished depression / holes left by form ties in the concrete surface. Why?