Download Sprinkler Fitter Test Study Guide 2024-2025. Questions and Correct Answers. Graded A+ and more Exams Engineering in PDF only on Docsity! Sprinkler Fitter Test Study Guide 2024- 2025. Questions and Correct Answers. Graded A+ "This type of head has been specifically studied for its ability to control fires in rooms of origin." - ANS(Residential Sprinklers) (True or false) Double interlock systems can be gridded - ANSFalse (True or false) schedule 10 pipe can be threaded - ANSFalse • What are the degrees for Intermediate heads? - ANS175 - 225 1. What is the Minnesota, state fire protection statue code? - ANS299M 25. In a kitchen a hood and vent duct must have a sprinkler installed, so what size head orfice must be used? - ANSNot less than 1/4" and no more than 1/2 " 3.What square footage is extra hazard? - ANS25,000 sq. ft 53) How shall above ground piping be hydrostatically tested? - ANS(200 psi for 2 hours without loss) 7.When installing a dry system in a refrigerated area, the piping must be pitched to what specific specs? - ANS4" for branch lines and " for mains. this is under an exception 700 heads in a warehouse. How many extra heads are required? - ANS12 A contractor has 4 different projects all within a block of each other. How many licensed journeyman are required? - ANS(4) A fast response sprinkler has an RTI of what? - ANS(50 or less) A manifold has 4 wet zones. All the gauges read 60 psi. You test one system against a calibrated gauge and the calibrated gauge reads 54 psi. What is the correct action? - ANSReplace all gauges A paddle type flow switch is acceptable in a dry system riser. - ANS(False) A pre action system contains supervisory air in pilot lines and heat detection wire run adiacent to the lines, what kind of pre action system is this? - ANS(Double Interlock) A pressure tank should be at least how full? - ANS2/3 A relief valve shall be set to relieve pressure at what PSI? - ANS10 psi A sidewall installed in a soffit is 5" from the above ceiling to deflector, what is the maximum depth of the soffit? - ANS(9") Bathroom. - ANSWithin a dwelling unit, any room or com- partment containing a lavatory dedicated to personal hygiene, or a water closet, or bathing capability such as a shower or tub, or any combination of facilities thereof. Branch Lines. - ANSThe pipes supplying sprinklers, either di- rectly or through sprigs, drops, return bends, or arm-overs. Can cpvc be layered with blown insulation to prevent it from freezing? - ANS(No, as this will actually prevent heat from reaching the pipe. Solid insulation may be laid over sprinkler pipe) Can quick response and standard response heads be used in the same room? - ANS(No) Ceiling Height. - ANSThe distance between the floor and the underside of the ceiling above (or roof deck) within the area. Cellophane bags may be placed over heads in a paint booth. - ANS(True if the bags are of a thickness of no more than 0.003") Characteristics of CMSA sprinklers? - ANS(Large droplets) Circulating Closed-Loop Sprinkler System. - ANSA wet pipe sprinkler system having non-fire protection connections to automatic sprinkler systems in a closed-loop piping arrange- ment for the purpose of utilizing sprinkler piping to conduct water for heating or cooling, where water is not removed or used from the system but only circulated through the piping system. Combined Dry Pipe-Reaction Sprinkler System. - ANSAsprin- kler system employing automatic sprinklers attached to a pip- ing system containing air under pressure with a supplemental detection system installed in the same areas as the sprinklers. Operation of the detection system actuates tripping devices that open dry pipe valves simultaneously and without loss of air pressure in the system. The detection system also serves as automatic fire alarm system. Compartment. - ANSAspace completely enclosed by walls and a ceiling. The compartment enclosure is permitted to have open- ings in walls to an adjoining space if the openings have a mini- mum lintel depth of 8 in. (203 mm) from the ceiling and the openings do not exceed 8 ft (2.44 m) in width. A single opening of 36 in. (914 mm) or less in width without a lintel is permitted when there are no other openings to adjoining spaces. Concealed Sprinkler. - ANSA recessed sprinkler with cover plate. Continuous Obstruction. - ANSAn obstruction located at or below the level of sprinkler deflectors that affect the discharge pattern of two or more adjacent sprinklers. Control Mode Density/Area (CMDA) Sprinkler. - ANSA type of spray sprinkler intended to provide fire control in storage applications using the design density/area criteria described in this standard. Control Mode Specific Application (CMSA) Sprinkler. - ANSA type of spray sprinkler that is capable of producing characteristic large water droplets and that is listed for its capability to provide fire control of specific high-challenge fire hazards. Control valves supplying sprinklers must be locked or secured in the open position in all cases except? - ANS(When in a locked or secured room only accessible to essential personnel) Corrosion-Resistant Sprinkler. - ANSA sprinkler fabricated with corrosion-resistant material, or with special coatings or platings, to be used in an atmosphere that would nor- mally corrode sprinklers. Cross Mains. - ANSThe pipes supplying the branch lines, ei- ther directly or through riser nipples. Deluge Sprinkler System. - ANSA sprinkler system employing open sprinklers or nozzles that are attached to a piping system that is connected to a water supply through a valve that is opened by the operation of a detection system installed in the same areas as the sprinklers or the nozzles. When this valve opens, water flows into the piping system and discharges from all sprinklers nozzles attached thereto. Distance above a heat duct for a sprinkler head? - ANSMore than 2 ft 6 Does FDC piping need to be hydrostatically tested? - ANS(Piping between FDC inlet and FDC check valve must be hydrostatically tested in the same manner as the rest of the system) Dpuble-Check Backflow prevent - ANS(cross contamination) Drain valves at least—— from outside to prevent freezing - ANS4-0 Flexible Listed Pipe Coupling. - ANSA listed coupling or fitting that allows axial displacement, rotation, and at least 1 degree of angular movement of the pipe without inducing harm on the pipe. For pipe diameters of 8 in. (200 mm) and larger, the angular movement shall be permitted to be less than 1 degree but not less than 0.5 degree. Flush Sprinkler. - ANSA sprinkler in which all or part of the body, including the shank thread, is mounted above the lower plane of the ceiling. Fuel-Fired Heating Unit. - ANSAn appliance that produces heat by burning fuel. General - ANSThe definitions contained in this chapter shall apply to the terms used in thisstandard. Where terms are not defined in this chapter or within another chapter, they shall be defined the contest in which uning their they are used. ondinarily accepted source for the ordinarily Mema-Widater Calliate meanings within Ihetionary Ildh edition, shall be the accepted meaning. General Sprinkler Characteristics. - ANSThe following are characteristics of a sprinkler that define its ability to control or extinguish a fire. (1) Thermal sensitivity. A measure of the rapidity with which the thermal element operates as installed in a specific sprinkler or sprinkler assembly. One measure of thermal sensitivity is the response time index (RTI) as mea- sured under standardized test conditions. (a) Sprinklers de- fined as fast response have a thermal element with an RTI of 50 (meters-seconds) 1/2 or less. (b) Sprinklers defined as stan- dard response have a thermal element with an RTI of 80 (meters-seconds) 1/2 or more. (2) Temperature rating. (3) K-factor (see Chapter 6). (4) Installation orientation (see 3.6.2). (5) Water distribution characteristics (i.e., application rate, wall wetting). (6) Special service conditions (see 3.6.3). Glycerine is used for plastic pipe only - ANSTrue Graphic of a branch line from a pipe schedule system converted to a hydraulic system with a 1.5 x 1.5 x 1/2 on the run tee which used to have an upright head but now has a 1/2 riser nipple increasing to 1" after the nipple and then going to two 1" pendant drops. Is this allowed? - ANS(Yes, if the 1/2" riser nipple is an 0-4 or less and the calcs work out) Grid System Must Have - ANS(Relief Valve) Gridded Sprinkler System. - ANSA sprinkler system in which parallel cross mains are connected by multiple branch lines, causing an operating sprinkler to receive water from both ends of its branch line while other branch lines help transfer water between cross mains. High Volume Low Speed Fan. - ANSA ceiling fan that is approximately 6 ft (1.8 m) to 24 ft (7.3 m) in diameter with a rotational speed of approximately 30 to 70 revolutions per minute. Horizontal Ceiling. - ANSA ceiling with a slope not exceeding 2 in 12. Hose valves have what type of threads - ANSNh standard threads How far (at least) below large drop sprinklers shall storage be? - ANS36 inches, for regular sprinkler heads - 18 inches How far apart can hangers be spaced on 3 inch or less thin wall pipe? - ANS12 ft How far should the hanger be spaced on 1 " CPVC Pipe? - ANS6' How long for an air compressor to fill a dry system in a refrigerated space? - ANS(60 minutes) How long for an air compressor to fill a dry system? - ANS(30 minutes) How long shall an electric fire pump run for during a no flow test? - ANS(10 minutes) How long should it take to restore air pressure? - ANS30 min How long should the water supply be capable of when all exposure sprinklers go off simultancously against a fire? - ANS60 minutes How many heads can you take off a cold weather valve? - ANS10 How many heads can you take out of a cold weather valve? - ANS10 How many heads per pre-action valve? - ANS(1000) How many spare heads in head box? - ANS(Minimum 6. If system has 1 - 300 heads you need 6, 300 - 1000 you need 12, 1000+ heads in system you need 24) How much clearance around pipe in pump house passing through walls? - ANS1 inch How shall underground mains be tested? - ANS(200 psi or +50 over working pressure for 2 hours with +/- 5 psi) How should fire pump sensing lines be piped? - ANS(Corrosion resistant pipe minimum 1/2" with two check valves 5' apart with flow direction facing away from controller, Note: galvanized pipe is not corrosion resident enough) Hydraulically Designed System. - ANSA calculated sprinkler system in which pipe sizes are selected on a pressure loss basis to provide a prescribed water density, in gallons per minute per square foot (mm/min), or a prescribed minimum dis- charge pressure or flow per sprinkler, distributed with a reasonable degree of uniformity over a specified area. Hydrostatic test for a standpipe with static pressure at 170 PSI. What is the testing pressure? - ANS220 (50 lbs over) Image of a control valve asking you to identify it. - ANS(Butterfly, butterball, PIV, OS&Y) Image of a drum drip with the two valves in various positions asking which is correct? - ANS(Top valve open, lower valve closed, plug in bottom of lower valve) Image of a triangle where they give you the hypotenuse length and one leg length and ask for the third dimension. - ANS(a^2 + b^2 c^2) Image of Standard response sprinkler head and they ask you to correctly identify it. - ANS(Large bulb). In a fire rated stairwell of limited or non combustible construction, where must sprinkler heads be placed? - ANS(Top landing and bottom of shaft) In lieu of a full trip test, how shall a dry valve be tested? - ANS(40 psi for 2 hours with airlines closed with a maximum loss of 3 psi) Inspect Dry System Gauges - ANS(Weekly) Inspect Wet Gauges - ANS(Monthly) Inspect wet gauges - ANSevery month-Dry weekly Inspection Underground must be at least below the frost line - ANS1-0 Institutional Sprinkler. - ANSA sprinkler specially designed for resistance to load- bearing purposes and with components not readily converted for use as weapons. Intermediate Level Sprinkler/Rack Storage Sprinkler. - ANSA sprinkler equipped with integral shields to protect its oper- ating elements from the discharge of sprinklers installed at higher elevations. Is a control valve allowed in FDC piping? - ANS(No) is no longer acceptable in underground bracing - ANSWood is no longer used in underground piping - ANSSteel Limited-Combustible (Material). - ANSRefers to a building construction material not complying with the definition of noncombustible material that, in the form in which it is used, has a potential heat value not exceeding 3500 Btu/b (8100 kJ/kg), where tested in accordance with NFPA 259, and includes either discharge pattern of two or more adjacent sprinklers. Listed. - ANSEquipment, materials, or services included in a list published by an organization that is acceptable to the au- thority having jurisdiction and concerned with evaluation of products or services, that maintains periodic inspection of production of listed equipment or materials or periodic evaluation of services, and whose listing states that either the equip- ment, material, or service meets appropriate designated stan- dards or has been tested and found suitable for a specified purpose. Looped Sprinkler System. - ANSA sprinkler system in which multiple cross mains are tied together so as to provide more than one path for water to flow to an operating sprinkler and branch lines are not tied together. lWhat type of head in heater zone? - ANS(High) color-Blue Max coverage ordinary hazard - ANS130 sq. feet Max distance from building for a fire hydrant? - ANS(100') Max number of heads off 1 1/2" - ANS(Max 5 Heads) Max Spacing - ANS(400 sq.t.) Portable fire extinguishers are in a general storage building. What % of portable fire extinguishers can be omitted in storage areas where fixed hose lines (1 ½) are available to reach all portions of the storage area? - ANSUp to 50% Powder driven studs or welded studs must have a coupling to attach to the rod? - ANSTrụe Preaction Sprinkler System. - ANSA sprinkler system employing automatic sprinklers that are attached to a piping system that contains air that might or might not be under pressure, with a supplemental detection system installed in the same areas as the sprinklers. Premixed Antifreeze Solution. - ANSSolution. A mixture of an anti- freeze material with water that is prepared and factory- mixed by the manufacturer with a quality control proce- dure in place that ensures that the antifreeze solution remains homogeneous and that the concentration is as specified. Quick response sprinklers must be tested how often? - ANS(20 years) Quick-Response (QR) Sprinkler. - ANSA type of spray sprinkler that has a thermal element with an RTI of 50 (meter-seconds) 1/2 or less and is listed as a quick- response sprinkler for its intended use. Quick-Response (QR) Sprinkler. - ANSA type of spray sprinkler that has a thermal element with an RTI of 50 (meter-seconds) 1/2 or less and is listed as a quick- response sprinkler for its intended use. Quick-Response Early Suppression (QRES) Sprinkler - ANSA type of quick-response sprinkler that has a thermal element with an RTI of 50 (meter-seconds) 1/2 or less and is listed for its capability to provide fire suppression of specific fire hazards. Quick-Response Early Suppression (QRES) Sprinkler. - ANSA type of quick-response sprinkler that has a thermal with an RTI of 50 (meter-seconds) 1/2 or less and is listed for its capability to provide fire suppression of specific fire hazards. Quick-Response Extended Coverage Sprinkler. - ANSA type of quick-response sprinkler that has a thermal element with an RTI of 50 (meter-seconds)/2 or less and complies with the extended protection areas defined in Chapter 8. Raw Water Source. - ANSA water supply that has not been treated and could contain foreign material that could enter the sprinkler system. Recessed Sprinkler. - ANSA sprinkler in which all or part of the body, other than the shank thread, is mounted within a recessed housing. Requirements to utilize small room rule? - ANS(800 sq ft + light hazard) Residential Sprinkler. - ANSA type of fast-response sprinkler having a thermal element with an RTI of 50 (meters- seconds) 1/2 or less that has been specifically investigated for its ability to enhance survivability in the room of fire origin, and that is listed for use in the protection of dwelling units. Riser Nipple. - ANSA vertical pipe between the cross main and branch line. Risers. - ANSThe vertical supply pipes in a sprinkler system. Shall. - ANSIndicates a mandatory requirement. Shop-Welded. - ANSAs used in this standard, shop in the term shop-welded means either (1) a sprinkler contractor's or fabricator's premise or (2) an area specifically designed or authorized for welding, such as a detached outside location, maintenance shop, or other area (either temporary or permanent) of noncombustible or fire-resistive construction free of combustible and flammable contents and suitably segregated from adjacent areas. Should. - ANSIndicates a recommendation or that which is advised but not required. Sidewall Sprinkler. - ANSA sprinkler having special deflectors that are designed to discharge most of the water away from the nearby wall in a pattern resembling one-quarter of a sphere, with a small portion of the discharge directed at the wall behind the sprinkler. Sloped Ceiling. - ANSA ceiling with a slope exceeding 2 in 12. Small Openings. - ANSOpenings in the ceiling or construction features of a concealed space that allow limited amounts of heat to enter the concealed space. Small Room. - ANSA compartment of light hazard occu- pancy classification having unobstructed construction and a floor area not exceeding 800 ft (74 m2). Smooth Ceiling. - ANSA continuous ceiling free from sig- nificant irregularities, lumps, or indentations. The code book 13R is used for? - ANSResidential occupancies up to and including buildings that are 4 stories. The system check valve can be installed before the underground has been flushed. - ANS(False) the unsupported between end sprinkler in pendant position or drop nipple and last on the branch line shall not exceed 12 inches, 6 inches for copper at what psi - ANSWhen system pressure exceeds 100 psi Thermal Barrier. - ANSA material that limits the average temperature rise of the unexposed surface to not more than 250°F (121°C) above ambient for a specified fire exposure duration using the standard time-temperature curve of ASTM El19, Standard Test Methods for Fire Tests of Building Construction and Materials. Tire storage> How wide are the piles of tires? - ANS25 ft or less Tlow are dry mains and branch lines to be pitched in refrigerated areas? - ANS(1/2" for BOTH) Trapped water drain requirements: - ANS5 gallons or less = 1/2" plug, 5 - 50 gallons = 3/4" nipple with hall valve and plug, 50 gallons or more = 1" nipple with ball valve and plug) Upright Sprinkler. - ANSA sprinkler designed to be in- stalled in such a way that the water spray is directed up-wards against the deflector. Using any component of a fire sprinkler system as grounding for electricity is acceptable. - ANS(False) Valves must be able to close within how many seconds? - ANS5 seconds Waterflow Alarm Device. - ANSAn attachment to the sprinkler system that detects a predetermined water flow and is connected to a fire alarm system to initiate an alarm condition or is used to mechanically or electrically initiate a fire pump or local audible or visual alarm. Wet Pipe Sprinkler System. - ANSA sprinkler system employing automatic sprinklers attached to a piping system containing water and connected to a water supply so that water discharges immediately from sprinklers opened by heat from a fire. What are flow requirements to flush a 6-inch underground system? - ANS880 gpm What are the parameters (distance) of a hose valve connection above the floor? - ANS3ft to 5ft What best fits extra hazard? - ANSParticle board What color is high temp ñead? - ANSblue What color of frames on an extra high sprinkler head? - ANSRED What is a contractor's certificate used for? - ANSYour test papers What is head in relation to a fire pump? - ANS(A measure of the energy imparted to water by the fire pump expressed in psi) What is mandatory on the pressure side or 2 fire pump? - ANSOS&Y What is mandatory on the supply side of a fire pump before the essentric reducer? - ANSOS&Y What is the largest size pipe lag screw rod can support? - ANS6 in. What is the max sq. ft. for Light Hazard, Ordinary Hazard, Extra Hazard, Rack Systems? - ANS(LH- 52,000 sq ft)(OH- 52,000 sq ft)(EH- 25,000 sq ft)(on non- calculated systems, 40,000 sq ft )(on calculated Racks- 40,000 sq ft) What is the maximum allowable overhang? - ANS1 inch pipe-36 inches (3ft), 1 4 inch pipe-48 inches (4ft), 1 % inch or larger-60 inches (5ft) What is the min height above grade for fire hydrant? - ANS18 inches What is the minimum maintained water pressure for a pressure tank? - ANS75 lbs What is the minimum PSI a sprinkler head will need to operate? - ANS7 PSI What is the minimum size drain on a 6-inch riser? - ANS2 inches When are return bends to be used? - ANSWhen fed from an unpotable water source When calculating a sprinkler system, what part is remote? - ANSFarthest When can a control valve supplying sprinklers be unmonitored? - ANS(When it supplies less than 20 sprinklers) When can Cpvc be run exposed? - ANS(in rooms 400 square feet or less per NFPA 13 2019 edition When do sprinkler systems need to be supervised? - ANSmore 20 sprinkler heads When does the license for journey man expire? - ANSJune 30th of each year When installing a antifreeze system the antifreeze solutions shall be in conformity with who? - ANSState and local health regulations When is a main drain test required? - ANS(Commissioning, annually, and every time the control valve is closed and reopened) When is a Quick Opening Device required? - ANS(On dry systems 750 gallons or more that cannot meet the 60 second water delivery time limit to inspectors test) When measuring deflector distance from corrugated deck, where do you measure from? - ANS(Lower rib, unless the denth of the corrugated deck is greater than 3". Then you measure from the recessed part of the deck) When measuring deflector distance from decks with insulation, where do you measure from? - ANS(The high nart of insulation) When should orange sprinkler guards be removed during install? - ANS(When majority of construction activities have ceased or the heads are higher than 10') When using a cement solvent as a bonding agent you must or must not put a sprinkler head in the fitting before you screw it on the pipe? - ANSYou must not put the head in prior to the fitting being cemented in to place. Where do you calculate a sprinkler system? - ANSHydraulically most demanding Where is the ball drip to be installed in FDC piping? - ANS(Lowest point of the FDC piping) Which type of pipe is not acceptable for stand pipes? - ANSDuct tile pipe Who invented pipe calculations? - ANS(Hazen-Williams) Why can't you use a butterfly valve be used to isolate a fire pump? - ANS(Leads to uneven distribution of water into the pump which can damage the pump)