NFPA-99: Practice Test Questions and Answers complete

Under which of these conditions shall the instrument Air Reserve header cylinders be permitted to be stored with the instrument air compressor? A) the mechanical equipment room does not contain a boiler. B) the medical air compressors are in the same room. C) the only motor-driven machinery in the room is for instrument air equipment. D) the room is secured with lockable doors. - ANS- C) The only motor-driven machinery in the room is for the instrument air equipment Riser valves are those valves located where? A) adjacent to the main riser downstream of any zone valve. B) anywhere in the lateral branches of the piping system. C) in the mainline adjacent to the base of the riser. D) in the riser adjacent to the mainline. - ANS- D) In the riser adjacent to the main line When is the initial pressure test conducted by the installer? A) after blowdown of the distribution piping. B) after installation of alarm sensors. C) before blowdown of distribution piping. D) before installation of station rough in assembly. - ANS- A) After blow-down of the distribution piping. In those portions of systems intended to handle oxygen at pressure greater than 350 psi the inter connecting hose shall not contain what materials? A) brass. B) copper C) polymeric D) stainless steel - ANS- C) Polymeric The tool shown here allows the installer to mechanically limit the makeup depth of the fitting to be brazed. Under what condition is this method permitted for the installation of medical gas piping? A) only on final line connectors. B) only on vacuum systems. C) where only B cup 5 brazing rod is used D) where the limited makeup depth is not less than minimum cut depth her ANSI / ASME recommendations - ANS- D) Where the limited makeup depth is not less than minimum cup depth current ANSIASME recommendation What is the standard gauge pressure for nitrogen gas service? A) 15 - 30 B) 50 - 55 C) 162 185 D) it varies with system type. - ANS- C) 50 - 55 psi What is a NFPA 99 requirement for labeling of pipes in medical gas system? A) color coding B) fixed label with C) label shall wrap completely around pipe. D) reflective label - ANS- A) Color coding