When a fire protection system is completely out of service due to an unplanned condition, what color disk should be placed at the Fire Department Connection? {Ans: White}___________ above ceilings with cover plates are commonly found in many buildings. It provides a finished look and also protects the sprinkler heads from accidental contact and possible activation. {Ans: Concealed sprinkler heads}A ________ could be installed on the premises at the request of the owner to protect a large open area (auditorium, warehouse, factory), where a common smoke detector would not be appropriate. {Ans: Beam detector}The water flow alarms of a standpipe system must be tested ____________. (Refer to the Reference material) {Ans: Quarterly}Portable fire extinguishers with a gross weight of less than 40 pounds must be installed so that the top of the extinguisher is not located more than ____ feet above the floor. {Ans: 5}With a dry standpipe system, which of the following two quick opening devices are installed that would allow the clapper to open much quicker, and allow water to flow into the system? {Ans: Accelerator and exhauster}