TIER 3 EXAM 1(BUILDING INSPECTION) 2024-2025 EDITION. ALL QUESTIONS & CORRECT ANSWERS. A+, Exams of Real Estate Management

Download TIER 3 EXAM 1(BUILDING INSPECTION) 2024-2025 EDITION. ALL QUESTIONS & CORRECT ANSWERS. A+ and more Exams Real Estate Management in PDF only on Docsity! TIER 3 EXAM 1(BUILDING INSPECTION) 2024-2025 EDITION. ALL QUESTIONS & CORRECT ANSWERS. GRADED A+ A "drinking fountain" is provided with a device defined as a _______ to provide an orifice elevation to assist in protecting the water supply A. Backflow preventer B. Stream projector C. Atmospheric vacuum breaker D. Check valve - ANSStream projector A commercial building renovation project requires the plumber/gasfitter to alter-(by cutting into) a 2-1/2" active gas main. The developed length of the main is 75-feet. A 2- ½-inch by 2-inch tee-(the 2" branch for new equipment) is to be installed. The gas is turned-off, so work can proceed. Prior to cutting into the main _______ A. The local fire department is to be notified B. The contents of the main are to be pressure purged to an outside location C. An electronic testing device shall be used to determine there is no residual gas in the main D. The pipe must be cut with an approved steel pipe cutter - ANSB. The contents of the main are to be pressure purged to an outside location A journeyman and apprentice plumber are completing the rough gas connections in a commercial warehouse. The low-pressure gas system install employs the use of schedule 40 black steel with threaded and welded joint connections. The piping that has been used ranges in sizes from ½" to 4-inch. The circumference of a schedule-40 black steel gas pipe with an I.D. of 3-inch and O.D. of 3.5 is approximately A. 9.62"' B. 9.42" C. 7.06" D. 11" - ANSD. 11" A journeyman plumber and apprentice are adding to a natural gas piping system in a residential condominium complex that is being renovated. The licensee shall check the existing piping in the building to determine whether it has adequate capacity. Where the capacity is inadequate, the existing system shall be enlarged as necessary, or separate gas piping of adequate capacity shall be run from the _______ to the appliance. - ANSPoint of delivery A journeyman plumber and apprentice are completing the finish plumbing and gas connections for plumbing fixtures and gas equipment that are being installed in a restaurant. Commercial dishwashing machines that discharge by gravity shall be indirectly connected, except when the machine is located above or within _______ feet of a trapped floor drain, the waste may be connected directly to the inlet side of a properly vented floor drain trap. A. 2 B. 3 C. 5 D. 10 - ANSC. 5 A journeyman plumber and apprentice are completing the finish plumbing and gas connections for plumbing fixtures and gas equipment that are being installed in a restaurant. True or False: In restaurants, pubs, and nightclubs where the total combined number of employees and patrons that can be accommodated at any one time is 20 individuals and the total gross space is more than 2,000 square feet, one gender neutral, handicapped accessible toilet facility for use by both employees and the patrons shall meet the minimum fixture requirements - ANSFalse A journeyman plumber and apprentice are completing the finish plumbing connections in core toilet facilities in a two-story office building. Note: Drinking fountains are required per each set of restrooms. True or False: Wherever drinking fountains are provided, a drinking fountain shall be accessible to the physically impaired - ANSTrue A journeyman plumber and apprentice are completing the rough and finish gas connections on a roof of a new warehouse condominium facility using. 1-1/2" and 2" corrugated-stainless-steel-tubing. The CSST being installed by the journeyman plumber and apprentice shall be supported on blocks which are spaced not more than ____ apart. A. 36 inches B. 4 feet C. 32 inches D. 2 feet - ANSB. 4 feet D. 60 - ANSB. 10 A journeyman plumber and apprentice are installing 1/2", 3/4", 1" and 1-½" schedule-40 steel gas piping in a building. Extending from the outlet of the meter, MegaPress® and threaded connections are the joining method being used to fasten pipe to fittings. Gas piping systems that extend from the outlet of the service meter assembly to the closed shutoff valve at each appliance shall withstand a pressure test of not less than ________ of mercury or three-PSIG for a period of not less than 10-minutes without showing any drop in pressure. A. 1 inch B. 2 inches C. 6 inches D. 14 inches - ANSC. 6 inches A journeyman plumber and apprentice are installing 1/2", 3/4", 1", 1-1/4", 1-1/2" and 2" schedule-40 steel gas piping in a commercial/industrial building. A portion of each size of piping will be required to be run horizontally and vertically. Hangers and supports for 1-½" steel gas piping installed vertically shall be placed at intervals of no more than ______ apart A. 6 feet B. 120 inches C. 8 feet D. Every floor level - ANSD. Every floor level A journeyman plumber and apprentice are installing ½ ½", 1" and 1-¼" schedule-40 steel gas piping in a building. Before any piping is concealed or placed into service a test of the piping is to be completed prior to a formal request for inspection by the local gas inspector. The test pressure that is used for any gas piping shall be measured with a mercury manometer, slope gauge or an equivalent device so calibrated as to read in increments of not more than ______ A. 1/2 PSIG B. 1-1/2 PSIG C. 3 PSIG D. 0.1 PSIG - ANSD. 0.1 PSIG A journeyman plumber and apprentice are installing ½", ¼", 1", 1-1/4", 1-½" and 2" schedule-40 steel gas piping in a commercial/industrial building. A portion of each size of piping will be required to be run horizontally and vertically. Hangers and supports for ¾" steel gas piping installed horizontally shall be placed at intervals of no more than apart. A. 6 feet B. 12 feet C. 8 feet D. 10 feet - ANSC. 8 feet A journeyman plumber and apprentice are installing ½", ¾", 1", 1-1/4", 1-1/2" and 2" schedule-40 steel gas piping in a commercial/industrial building. A portion of each size of piping will be required to be run horizontally and vertically. Hangers and supports for 2" steel gas piping installed horizontally shall be placed at intervals of no more than _______ apart. A. 8 feet B. 10 feet C. 6 feet D. 12 feet - ANSB. 10 feet A journeyman plumber and apprentice are installing 18 EHD CST tubing in a trench at the exterior of a building underground. The tubing will be conveying natural gas from a residential dwelling to a 399,000 BTU/hr. gas fired pool heater. The minimum depth for CSST buried gas tubing as described above is _______ inches from the top of grade. - ANS18 A journeyman plumber and apprentice are installing 3/4", 1", 1-¼", 1-½" and 2" schedule-40 steel gas piping in a building. The gas piping system is sized to provide 1,240 cu. ft. of gas for appliances and equipment being connected Gas dining systems in excess of one-million BIU/hr input shall be tested at a pressure not less than _____ times the proposed maximum working pressure of the gas system A. 2 B. 5 C. 6 D. 10 - ANSD. 10 A journeyman plumber and apprentice are installing ¾ inch polyethylene-plastic-tubing in a trench at the exterior of a building underground. The tubing will be conveying natural gas from a residential dwelling, to a 399,000 BTU/hr. natural gas fired pool heater. If external damage to the tubing from external forces is likely to result. The minimum cover over the tubing shall be increased to _______ inches. - ANS18 A journeyman plumber and apprentice are installing ¾", 1", 1-1/4", 1-½" and 2" schedule-40 steel gas piping in a building. The gas piping system is sized to provide 1,240 cu. ft. of gas for appliances and equipment being connected. The maximum test duration for the gas piping system identified above shall not exceed a ____ time period irrespective of the piping system design. A. 10 minute B. 12 hour C. 15 minute D. 24 hour - ANSD. 24 hour A journeyman plumber and apprentice are installing 6" diameter horizontal storm conductors in a commercial building. The conductor is being hung from steel I-beams and the hangers are being placed to provide a 1/8" slope. A 1/8-inch pitch per foot slope is equal to a ______ grade. A. 0% B. 2% C. 3% D. 1% - ANSD. 1% A journeyman plumber and apprentice are installing a 30-gallon category-1 natural gas fired water heater. A 3-inch diameter vent connector is being run horizontally to an existine masonry chimney. Seven-times the area of the 3-inch vent connector is approximately _____ sq. in. A. 22.00 B. 7.07 C. 12.56 D. 49.49 - ANSD. 49.49 A journeyman plumber and apprentice are installing a 6-inch diameter corrugated chimney liner The chimney liner is being dropped down an existing masonry chimney The area of a 6-inch corrugated chimney liner is approximately _____ square inches A. 3.1416 B. 7.07 C. 12.56 B. Continuous C. Stable D. Constant - ANSB. Continuous A journeyman plumber and apprentice are renovating the DWV and water connections in an existing Catholic Church. A public sanitary sewer, storm sewer and drywell are provided to receive the waste and other liquids generated in this facility. The liquid discharge from a _______ shall be conducted separately and directly to a drywell in the ground, and shall not be used for any other drainage purpose. A. Flushing rim sink B. Lavatory C. Cuspidor D. Sacrarium - ANSD. Sacrarium A journeyman plumber and apprentice are roughing in the drainage, waste, venting and water distribution system in a restaurant. The restaurant has been designed with a commercial kitchen and male and female toilet facilities. Plumbing fixtures include pot sinks, scullery sinks, grease separators, wall hung water closets, urinals, lavatories, trough drains and floor drains. Food handling establishments engaged in the storage, preparation, selling, serving, processing, or in any manner the handling of food shall provide indirect waste piping for A. Walk-in freezers B. Pot sinks C. Scullery sinks D. Floor drains - ANSA. Walk-in freezers A journeyman plumber and apprentice are roughing in the drainage, waste, venting and water distribution system in a restaurant. The restaurant has been designed with a commercial kitchen and male and female toilet facilities. Plumbing fixtures include. pot sinks, scullery. sinks. grease separators, wall hung water closets, urinals. lavatories, trough drains and floor drains. The design and installation of floor drains and trough drains shall be at a grade to enable _____ floor drainage from all directions. A. Accessible B. Complete C. Balanced D. Continual - ANSB. Complete A journeyman plumber and apprentice are roughing-in the drainage, waste venting and water distribution system in a newly constructed 3-story commercial office building. concrete and masonry walls are being used to separate toilet facilities and mecnanical areas Piping which is installed in and parallel to the faces of reinforced concrete or masonry walls shall be installed in adequately sized pipe ______ formed in the concrete or masonry walls. A. Channels B. Space chases C. Conduits D. Interval passages - ANSB. Space chases A journeyman plumber and apprentice are roughing-in the drainage, waste, vent and water distribution system in a three-story residential apartment building. hangers, fasteners and anchors that are being used shall be securely attached to the building at sufficiently close intervals to ______ A. Prevent strain and stress of the piping B. Hold the pipe in place while maintaining alignment C. Maintain proper pitch, grade, and slope D. Carry the weight of the pipe and it's contents - ANSD. Carry the weight of the pipe and it's contents A journeyman plumber and apprentice are roughing-in the drainage, waste, vent and water distribution system in a two-story residential dwelling. Schedule-40 PVC and ABS piping material shall be so anchored as to take the load off the _____ at the base A. Building drain B. Fixture drain C. Riser D. Stack - ANSD. Stack A journeyman plumber and apprentice are roughing-in the drainage, waste, vent and water distribution system in a two-story residential dwelling. The piping shall be installed with provisions, when necessary, for expansion _______ or structural settlement. A. Movement B. Vandalism C. Contraction D. Sagging - ANSC. Contraction A journeyman plumber and apprentice are roughing-in the drainage, waste. vent and water distribution system in new high school. The high school includes an athletic center that features a running track, a basketball court, a weight room, a swimming pool, restrooms and girls and boy's locker rooms. True or False: Pipes that convey waste water from swimming or wading pools including pool drainage. back wash from filters, water from scum gutter drains or floor drains which serve walks around pools, shall be installed as an indirect waste. - ANSTrue A journeyman plumber and apprentice are roughing-in the DWV and water distribution system in a 2-½-story 2,500-sq.-ft. single family dwelling. Chlorinated Polyvinyl Chloride-(CPVC) tubing in sizes 1/2", 3/4", 1" and 1-¼" is being used for the water distribution system throughout the building The 1" chlorinated polyvinyl chloride-(CPVC) tubing installed horizontally is to be secured rigidly to studs or joist with hangers and supports that enable adequate expansion and ease of movement at intervals or no more than _______ A. 24" B. 3 feet C. 42" D. 4 feet - ANSB. 3 feet A journeyman plumber and apprentice are roughing-in the DWV and water distribution system in a 2-½-story 2,500-sq.-ft. single family dwelling. Cross-linked polyethylene- (PEX) in sizes ½", 3/4" and 1" is being used for the water distribution system throughout the building The 3/4" cross-linked polyethylene-(PEX) tubing is to be secured rigidly to studs or joist with hangers and supports that enable adequate expansion and ease of movement at intervals of no more than A. 6 feet B. 32" C. 3 feet D. 24" - ANSB. 32" A journeyman plumber and apprentice are testing the natural gas piping system in a residential condominium complex that is being renovated. After the test of the rough gas piping. system, the gas piping system may be turned on and the appliance may be tested at normal operating pressure Following the successful testing and approval of a gas piping system, the inspector shall attach a _______ tag in a conspicuous place. - ANSPermanent C. Convey primary air to category 1 burner ports D. Supply combustion air - ANSD. Supply combustion air A journeyman plumber is installing a 40,000 BTU/hr. category-1 natural gas fired water heater that is located in the basement of a residential dwelling. Air for combustion ventilation and dilution of the flue gases produced by the water heater or other appliances installed in buildings shall be obtained by the introduction of indoor combustion air. When the introduction of adequate indoor combustion air is not possible ______ air shall be introduced to support combustion, ventilation and dilution. A. Primary B. Exhaust C. Secondary D. Outdoor - ANSD. Outdoor A journeyman plumber is installing a 50,000 BTU/hr. category-1 natural gas fired water heater. The water heater is located in a 4' X 4' X 7-6" mechanical closet enclosure. The closet does not provide sufficient air for combustion, ventilation, and dilution of the flue gases produced by the water heater. Indoor combustion air shall be obtained for this space by the introduction of air from other suitable spaces found on the same floor. Two permanent openings, one commencing within ______ inches of the top of the enclosure and one commencing within ____ inches of the bottom of the enclosure, shall be provided. A. 6(6) B. 6(12) C. 8(8) D. 12(12) - ANSD. 12(12) A journeyman plumber is installing a category-1 natural gas fired boiler that is in a space adjacent to a residential garage. The boiler is located in a separate, enclosed room having access only from outside of the garage. Single wall metal vent connector material is being used to run from the boiler to a vertical "gas vent"- (Type B vent connector) The category-1 boiler shall be permitted to be installed at _______ providing the required combustion air is taken from the exterior of the garage. A. 6 inches above the floor B. 12 inches above the floor C. 18 inches above the floor D. Floor level - ANSD. Floor level A journeyman plumber is installing a natural gas fired boiler that is located in a residential garage. Single wall metal vent connector material is being used to run from the draft hood of the boiler to a vertical "gas vent"- (Type B vent connector) Appliances in residential garages and in adjacent spaces that open to the garage and are not part of the living space of a dwelling unit shall be installed so that all burners and burner ignition devices are located not less than ______ above the floor. A. 1 foot B. 1.5 feet C. 24 inches D. 2.5 feet - ANSB. 1.5 feet A journeyman plumber is installing an 8" diameter storm drain underground. The storm drain is placed at a ¼" slope. The horizontal run of storm drain falls 27-inches before it reaches its point of connection with the exterior storm sewer. The horizontal run of storm drain is approximately _______ feet long. A. 95 B. 108 C. 142 D. 116 - ANSB. 108 A journeyman plumber is installing schedule-40 black metallic pipe in a five story, 28- unit, residential condominium building. A schedule-40 natural gas main is supplying gas appliances and equipment throughout the structure. The total developed "longest"- length of piping, as measured from the outlet of the gas meter to the farthest gas equipment shutoff valve is 135-feet. The code would require that a gas pipe which is a minimum size of _________ inch be installed to supply a single 85,000 BTU/hr. gas fired water heater. A. 1/2 B. 3/4 C. 1 D. 1-1/4 - ANSC. 1 A journeyman plumber is installing the gas connections to a gas fired furnace set-in- place by an HVAC-contractor in an attic space. Attic installation require the passageway and servicing area adjacent to the appliance shall be floored. An attic in which an appliance is installed shall be accessible through an opening and passageway at least as large as the largest component of the appliance and not less than ____ A. 22" x 22" B. 24" x 22" C. 22" x 30" D. 24" x 24" - ANSC. 22" x 30" A journeyman plumber is installing the gas connections to a gas fired furnace set-in- place by an HVAC-contractor in an attic space. The height along the attic space passageway to the furnace-(at its highest point) is 68 inches The distance from the passageway access to the appliance shall not exceed ______ feet measured along the centerline of the passageway. A. 6 B. 10 C. 15 D. 20 - ANSD. 20 A journeyman plumber is reviewing a set of construction documents-(blueprints) for a tenant space in a commercial office building. The 1,800 sq. ft space is for an insurance company and includes both plumbing and gas-fitting work. Six individuals will occupy this space during working hours. A core toilet facility is available for use on the same floor and is located 175-feet from the tenant space. True or False: The code would require that a minimum of one toilet room be installed and located within the insurance establishment for employee use - ANSFalse A journeyman plumber/gas-fitter has been contracted to remove a gas piping supply to a natural gas fired decorative gas log-set that had been installed in a masonry fireplace- (firebox). When a masonry fireplace is re-purposed for use with physical "solid fuel"-(such as wood) any ________ that are associated with the previous gas piping supply shall be removed. A. Piping B. Hangers C. Fittings D. Shutoffs - ANSD. Shutoffs A plumber and apprentice are completing the finish plumbing connections in a renovated apartment building. A kitchen and single bath is installed in each apartment. Two-piece water closets, lavatories with overflows and a 5-foot tub and shower unit are being completed The overflow from any fixture shall discharge into the drainage system on the _____ or fixture side of the trap finished interior dimension as the side of a rectangle, altitude of a triangle or diameter of a circle or other angular shape. A. 1,200 (24) B. 900 (30) C. 1,000 (18) D. 2,000 (24) - ANSB. 900 (30) A plumber is installing the water, waste and vent system in a laundry facility. (18)- Eighteen clothes washing machines will be installed using "stand-pipes" as receptors The (18)-stand-pipes shall connect to a drain of sufficient size to receive the simultaneous discharge of _______ of the clothes washing machines connected thereto. A. 13 B. 33% C. 14 D. 50% - ANSC. 14 A plumber is performing final connection to a grease interceptor that is part of a "dedicated grease system". The interior dimensions of the interceptor are 9'-long X 4'- 6"-wide X 5'- deep. Assume that the interceptor experiences a 20% freeboard. The approximate gallon capacity of the interceptor is _________ A. 1,214 to 1,216-Gals. B. 202 to 203-Gals. C. 1,517 to 1,519-Gals. D. 302 to 304-Gals. - ANSA. 1,214 to 1,216-Gals. A plumber/gasfitter is completing the rough and finish gas connections on a roof of a new warehouse condominium facility using CSST. CSST shall be installed for roof top equipment only when it is sunported or affixed to a wooden plank or a steel channel that is securely attached by an appropriate method every ______ to the roof structure A. 3 feet B. 72 inches C. 8 feet D. 120 inches - ANSB. 72 inches A plumber/gasfitter is completing the rough gas connections in a new superstore warehouse facility. The low-pressure gas system install employs the use of schedule 40 black steel with threaded and welded joint connections. The piping that has been used ranges in sizes from ¾" to 2-inch. 2-inch gas piping run horizontally 142-½-feet would have a total pitch of _______ A. 3/8" pitch every 10 feet B. 9-1/2" C. 1/2" pitch every 15 feet D. 2-3/8" E. No pitch is required - ANSD. 2-3/8" A plumber/gasfitter is installing CSST in a five story 28-unit residential condominium building. CSST home-runs-(dedicated supplies) are being run from manifolds at the 1st floor level to all-natural gas appliances/equipment. A _________-EHD tube size is required for a 15,000 BTU/hr. gas dryer that is placed on the 5th floor 135-feet away from the manifold A. 13 B. 15 C. 18 D. 19 - ANSC. 18 A team of plumbers and apprentices are installing the water, drainage, waste and vent piping in a non-denomination place of worship. This facility includes a congregation hall and other multipurpose areas that include offices, daycare and classroom space. When sufficient fixtures are installed to accommodate the total occupancy for the worship area the fixtures must be located within ___________ of toilet facilities in the same building A. The general area B. 300 feet C. Walking distance D. 2000 square feet - ANSB. 300 feet A team of plumbers are installing the water, waste and vent piping for a 5-story residential apartment complex. There are commercial laundry rooms provided on the 2nd and 4th floors of the complex. The minimum trap and standpipe diameter for each commercial clothes washing machine shall be no less than _______ A. 2 inches B. 3 inches C. 1.5 inches D. 2.5 inches - ANSA. 2 inches Acceptance of unlisted gas appliances, equipment, and accessories shall require _____ by the board A. Special permission B. Product acceptance C. A variance D. A test site evaluation - ANSC. A variance Commercial dishwashing machines that discharge by gravity shall be ________ connected, except when the machine is located above or within five feet of a trapped floor drain, the waste may be connected directly to the inlet side of a properly vented floor drain trap. - ANSIndirectly Expansion tanks, fire sprinkler systems, air conditioning equipment, drip or overflow pans, or similar devices that waste clear water only, shall discharge waste into the building storm drainage system. The clear water waste shall discharge through an indirect waste by means of an ________ - ANSAir gap in a newly constructed 3-story residential dwelling a journeyman plumber and apprentice are roughing-in the drainage, waste and venting with PVC and the water distribution system using copper tubing. Hangers being used to support 1-½" PVC horizontally are being placed at intervals of no more than _____ A. 12 inches B. 24 inches C. 36 inches D. 48 inches - ANSC. 36 inches In a newly constructed four-story, 8-Unit residential condominium building a journeyman plumber and apprentice are roughing-in the drainage, waste and venting with PVC and the water distribution system using CPVC tubing. Hangers being used to support 2"-PVC-DWV vertically are being placed at each story height, but not more than ______ foot intervals and elsewhere as required to maintain proper alignment. A. 5 B. 6 C. 8 D. 10 - ANSD. 10 C. One urinal flushometer D. 2 - ANSB. 1 Two plumber and two apprentice are roughing-in the drainage, waste, vent and water distribution system in a 4-story office building. Toilet facilities are being provide for the public on each floor level. Toilet facilities accessible to the public which have two or more toilets or urinals, or two or more thereof in any combination. shall provide a ______ A. Mop receptor B. Floor drain C. Trap standard D. Emergency wash station - ANSB. Floor drain Two plumbers and one apprentice are renovating the drainage, waste, vent and water distribution system in a 3-story industrial-building. Separate toilet facilities are being provided for workers of each sex in this building. An additional requirement regarding the toilet facilities accessible for each sex is that they shall ______ A. Be plainly designated male and female B. Apply non-absorbent ceramic tile to the walls prior to setting fixtures C. Be installed on every floor D. Incorporate a service sink - ANSA. Be plainly designated male and female Two plumbers and two apprentices are roughing-in the drainage, waste, vent and water distribution system in a 4-story oftice building In no case may a toilet facility be located more than ________ in developed direct distance away from the regular place of daily work activity of any person for whose use it is required A. One branch level B. 100 feet C. 3 floor levels D. 300 feet - ANSD. 300 feet Two plumbers and two apprentices are roughing-in the drainage, waste, vent and water distribution system in a K thru 6 grammar school renovation project. In kindergarten or primary grades, unisex toilet facilities may be installed for children _______ years of age or vounger. A. 2 B. 4 C. 5 D. 6 - ANSD. 6 Two, new, natural gas fired rooftop HVAC-unit are to be placed on roof-(curbs) in a single-story garden center. The curbs have been designed to receive the supply and return duct work for the structures cooling and heating requirements. A licensed journevman plumber will complete the gas piping connections to the units using ¾" and 1" black steel pipe and malleable fittings. The licensee shall also verity that at least-(no less than ______ feet of clearance shall be available between any part of the appliance and the edge of a roof or similar hazard A. 4 B. 6 C. 8 D. 10 - ANSB. 6 Unless an emergency exists, gas shall not be turned on and gas piping systems shall not be placed into service until the gas piping system shall be tested in the presence of the Inspector and _______ A. Passed B. Approved C. Allowed D. Accepted - ANSB. Approved When required by the inspector, a copy of the manufacturer's installation, operating, and maintenance instructions shall be provided within _______ prior to calling for a final Inspection. A. 24 hours B. 2 working days C. 48 hours D. 1 working day - ANSB. 2 working days Which of the following terms is the best match? Alternative technology toilet A. NSF-41 B. 20-patrons C. Anti-siphon D. Skating rinks - ANSA. NSF-41 Which of the following terms is the best match? Assembly (General) A. NSF-41 B. 20-patrons C. Anti-siphon D. Skating rinks - ANSD. Skating rinks Which of the following terms is the best match? Commercial food-waste grinders A. NSF-41 B. 20-patrons C. Anti-siphon D. Skating rinks - ANSB. 20-patrons Which of the following terms is the best match? Float valve or ballcock A. NSF-41 B. 20-patrons C. Anti-siphon D. Skating rinks - ANSC. Anti-siphon