four ______ serve(s) 2 separate traps using a single common vent and waste line. A double fixture fitting (tee) Two wyes Two wyes with 1/8 bends A combo wye A wye with a 45-degree bend A food disposal unit installed in a set of restaurant sinks shall be connected to a ______. double trap separate trap diverter tee grease trap The clothes washer standpipe is ______ for the clothes washer. not the tailpiece the tailpiece considered to be a direct waste receptor limited by Chapter 7 of the UPC A domestic clothes washer ______ without a separate trap. may empty into a laundry tub (if the tube is next to the washing machine) may not empty into a laundry tub (never permitted) may only empty into the laundry tub if it is in an adjacent room may only empty into the laundry tub if the tub is constructed of fiber glass or plastic may not empty into a laundry tub (washing machine must have its own trap) The maximum length of a tailpiece measured between a fixture and the trap weir is ______. 30 inches 12 inches 18 inches 24 inches The maximum length of a tailpiece which has an offset is ______. 30 inches 12 inches 18 inches 24 inches One trap may serve a set of not more than ______ single compartment sink(s). two one three four The maximum distance between waste outlets on a 3-compartment sink is ______. 30 inches 12 inches 18 inches 24 inches The trap serving a 3-compartment sink must be ______. on the left on the centered none of the answers provided Quiz 2 Each plumbing fixture trap be protected against siphonage and backpressure by a/n ______. sanitary tee vent pipe air admittance device backflow preventer The maximum length of a 2-inch trap arm measured from the trap weir to the inner edge of the vent shall not exceed ______. 30 inches 42 inches 60 inches 72 inches 120 inches The maximum length of a 1½ inch trap arm measured from the trap weir to the inner edge of the vent shall not exceed ______. 30 inches 42 inches 60 inches 72 inches 120 inches The minimum distance of a trap to the vent for a 3-inch trap arm is ______. 3 inches
16 17 18 B & S Gauge is never allowed Quiz 3 No more than ______ approved slip fitting is/are permitted on the outlet side of trap. one two four No tubing trap shall be installed without a ______. listed trap adaptor slip joint union plumber Listed ______ may be used to connect listed metal tubing traps. male adaptors female adaptors PEX adaptors plastic trap adaptors The size of the trap connected to a fixture shall be sufficient to drain the fixture rapidly but ______. is in no case smaller than the fixture drain is not more than one pipe size larger than a fixture shall be the same size as trap arm all of the answers provided No trap shall be used that ______. depends on movable parts for sealing has, with some exceptions, concealed interior partitions is classified as an “S” trap or bell trap all of the answers provided No fixture shall ______. be made of stainless steel have a 20-inch tail have a trap 1 size larger than the tailpiece be double trapped A drum trap is ______. prohibited from use commonly used instead of “P” traps only installed for special conditions a replacement for an “S” trap The ______ may be installed for special conditions. “S” trap bottle trap bell trap vented trap A bottle trap may be installed only when ______. needed for space the lavatory sink requires it approved by the Authority Having Jurisdiction there is no “P” trap available Quiz 4 Each fixture trap shall have a water seal of not less than ______. 1 inch 2 inches 3 inches 4 inches 5 inches Each fixture trap shall have a water seal of not more than ______. 1 inch 2 inches 3 inches 4 inches 5 inches Trap shall be set true with respect to their liquid seals. True False The water seal of the trap shall be ______. protected from freezing 17-gauge brass 6 inches deep protected from hot water drains shall connect into a trap constructed so that it can be ______. accessible easily removed readily cleaned protected
sanitary drainage vent system The alternative termination for the vent or air of the flow control device would be ______. VTR a side wall vent into the free atmosphere inside the building all of the answers provided none of the answers provided Use the diagram below, a 3 compartment sink with each tub measuring 24” x 20” x 16,” to answer questions 19-21. The capacity of each compartment without the 75% correction factor is ______ to the nearest gallon). 10 gallons 27 gallons 33 gallons 39 gallons 47 gallons The total capacity of all 3 sinks without the 75% correction factor is ______ (round to the nearest gallon). 50 gallons 75 gallons 99 gallons 125 gallons If all 3 compartments were to drain into the interceptor at the same time with the 75% correction factor, the de-rated drainage load would then be ______. 50 gpm 74 gpm 100 gpm 125 gpm The total capacity in gallons of fixtures discharging into any hydromechanical grease interceptor shall not exceed ______ times the certified gpm flow rate of the interceptor. 1½ 2 2½ 3 The size of a grease inceptor with a 4-inch diameter waste pipe will need to have a capacity of ______ for a one-minute drainage period. 20 gpm 75 gpm 150 gpm 250 gpm 500 gpm Gravity grease interceptors shall be installed and connected so that they shall be easily accessible for inspection, cleaning, and removal of the intercepted grease. True False Gravity grease interceptors shall be placed as close as practical to the ______. fixtures they serve soil pipes system egress Quiz 7 Grease interceptors at all shall be ______ for inspection, cleaning and removal of grease. easily accessible labeled with instructions documented by the manufacturer open It is recommended that a ______ be located at the outlet end of all gravity grease interceptors. pH monitor CO monitor sight glass sample box The purpose of a gravity grease interceptor (GGI) sample box is to ______. add water into the GGI to assist with separation allow for inspection by the AJH to ensure it is operating properly provide means for cleaning and servicing the GGI
none of the answers provided The volume of the gravity grease interceptor be determined by using ______. 313.1 1014.2.1 Table 1014.3.6 Table 610.3 The Authority Having Jurisdiction has mandated a grease pre-treatment for the following fixtures: 4 floor drains = _____ DFUs 2 commercial food prep = _____ DFUs 1 service sink with a 3-inch trap = _____ DFUs 2 dishwashers discharging 20 gallons per minute each = DFUs 1014.3.6 – pages 139, 140 The minimum size gravity grease interceptor in gallons required would be ______. 500 750 1000 1250 If a 5-inch pipe leads into the inlet of a gravity grease interceptor, what is the size of the interceptor needed in gallons? 2500 4000 3000 5000 Abandoned grease interceptors shall be ______ as required for abandoned sewers and sewage disposal facilities. broken up and removed pumped and filled painted and sealed cleaned and reused FOG disposal systems shall be sized and installed ______. by a plumber in accordance with Table 1002.2 by a plumber in accordance with Table 1014.3.6 in accordance with the manufacturer’s installation instructions none of the answers provided A sand interceptor outlet pipe shall be ______ the inlet pipe. larger than the same size as smaller than none of the answers provided The sand interceptor shall have a minimum dimension of ______ for the net free opening of the inlet section and a minimum depth under the invert of the outlet pipe of ______. 1½ square feet – 1½ feet 2 square feet – 6 inches 2 square feet – 2 feet 3 square feet – 3 feet The outlet section shall be covered by a/n ______, set flush with the floor. solid removable cover floor sink open grate 4-inch cleanout The inlet section of a sand interceptor shall have a/n ______, set flush with the finished floor. cleanout 3-inch pipe open 3-inch trap Quiz 8 Oil and flammable liquid interceptors are required to be installed in ______. A. repair garages B. factories that have oily wastes C. apartment buildings with underground garages D. answers A and B E. answers B and C