Fire pump Exam Study Guide with Complete Solutions

Fire pump Exam Study Guide with Complete Solutions pumps other than those specified in this standard and having different design features shall be permitted to be installed where such pumps are listed by a testing laboratory. these pumps shall be limited to capacities of less than _____ gpm. - Answer️️ -500 Any source of water that is adequate in quality, quantity, and pressure shall be permitted to provide the supply for a fire pump. - Answer️️ -true Where maximum flow available from the water supply cannot provide a flow of 150 percent of the rated flow of the pump , but the water supply can provide the greater of _____ percent of rated flow or the maximum flow demand of the fire protection systems, the water supply shall be deemed to be adequate. in this case, the maximum flow shall be considered the highest flow that the water supply cannot achieve. - Answer️️ -100 acceptable drivers for pumps at a single installation shall be electric motors, diesel engines,_______, or a combination thereof. - Answer️️ - steam turbines A pressure gauge having a dial not less than_______ in diameter shall be connected near the discharge casting with a nominal .25 in. gauge valve. - Answer️️ -3.5" ©SOPHIABENNETT@ Saturday, August 24, 2024 8:52 AM 2 The dial on the gauge on the discharge side of the pump shall indicate pressure to at least twice the rated working pressure of the pump but not less than _____ psi. - Answer️️ -200 Where the minimum pump suction pressure is below 20 psi under any flow condition, the suction gauge shall be a __________ pressure and vacuum gauge. - Answer️️ -compound unless the requirements if 4.11.1.7 are met, each pump shall have an automatic relief valve listed for the fire pump service installed and set below the shutoff pressure at minimum expected suction pressure. I. 4.11.1.7 which pumps do not require automatic relief valve. - Answer️️ - Engine Driven The automatic relief valve shall have a nominal size of .75 in. for pumps with a rated capacity not exceeding 2500 gpm and have a nominal size of ______ for pumps with a rated capacity of 3000 gpm to 5000 gpm. - Answer️️ -1" Fire pump units that are outdoors shall be located at least ______ away from any buildings and other fire exposures exposing the building. - Answer️️ -50' Fire pump buildings or rooms enclosing diesel engine pump drivers and day tanks shall be protected with an automatic sprinkler system installed in accordance with NFPA 13, Standard for the installation of sprinkler systems. - Answer️️ -True ©SOPHIABENNETT@ Saturday, August 24, 2024 8:52 AM 3 Where the suction supply is of sufficient pressure to be of material value without the pump, the pump shall be installed with a ______. - Answer️️ - bypass A listed ______ gate valve shall be installed in the suction pipe. No other kind of valves shall be installed in the suction piping within 50' of the fire pump. - Answer️️ -OS&Y Where the suction pipe and pump suction flange are not of the same size, they shall be connected with an _______ tapered reducer or increase installed in such a way as to avoid air pockets. - Answer️️ -eccentric Where the water supply is obtained from an open source such as a pond or wet pit, the passage of materials that might clog the pump shall be obstructed. ____________ shall be provided at the suction intake. Screens shall be removable or an situ cleaning shall be provided. - Answer️️ - Double intake screens A listed ______ or backflow preventer shall be installed in the pump discharge assembly. - Answer️️ -check valve Where pumps are installed in a series, a __________ valve shall not be installed between pumps. - Answer️️ -Butterfly When a low suction throttling valve is used, it shall be installed according to manufacturers reccomendations in the piping between the pump and the discharge _________. - Answer️️ -check valve ©SOPHIABENNETT@ Saturday, August 24, 2024 8:52 AM 4 in fire pump assemblies a clearance of not less than _______ shall be provided around pipes that pass through walls or floors. - Answer️️ -1" Where a diesel engine fire pump is installed and where a total of 121 percent of the net rated shutoff (churn) pressure plus the maximum static suction pressure, adjusted for elevation, exceeds the pressure for which the system components are rated, a ________ shall be installed. - Answer️️ - pressure relief valve The relief valve shall be located between the pump and the pump discharge _________ and shall be so attached that it can be readily removed for repairs without disturbing the piping. - Answer️️ -check valve Where the supply of water to the pump is taken from a suction resevoir of limited capacity, the drain pipe shall discharge into the resevoir at a point _________ the pump suction as is necessary to prevent the pump from drafting air introduced by the drain pipe discharge. - Answer️️ -as far from No ___________ or pressure regulating valves shall be installed