2018 ICC P1 Residential Plumbing Inspector Exam Quiz Welcome to your free 2018 ICC P1 Residential Plumbing Inspector Exam Quiz REQUIRED - Enter your email address and receive a printable copy of your test results. 1. A Type B or L gas vent must terminate not less than __________ in vertical height above the highest connected appliance draft hood or flue collar. 1 feet 3 feet 5 feet 7 feet 2. Where plumbing fixtures are installed, the water distribution system and drainage system of any building or premises must be connected to a public sewer system or water supply __________? if available if no private system is available if the owner wants public utilities unless the property already has an approved well and septic system 3. When testing a DWV system, each section must be filled with water to at least __________ feet above the highest point in the completed section, or the highest fitting connection in that section. 5 feet 8 feet 10 feet 12 feet 4. The centerline of bidets or water closets must be at least __________ inches from partitions or walls adjacent to it. 12 Inches 15 Inches 18 Inches 24 Inches 5. A water heater with an ignition source must be elevated so that the ignition source above the floor by at least __________ inches. (Exception ignored.) 12 inches 18 inches 24 inches 30 inches 6. If a water supply outlet is providing water to a water closet with a flushometer tank, what is the required gpm flow rate, at the point of outlet discharge? 1 gpm 1.6 gpm 2.5 gpm 2.75 gpm 7. A water service pipe must be at least __________ inch(s) in diameter. 1/2 inch 3/4 inch 1 inch 11 1/2 inch 8. The drainage fixture unit value (d.f.u.) of a kitchen group with a dishwasher and sink with or without a garbage grinder would be __________? 2 d.f.u 4 d.f.u 6 d.f.u 8 d.f.u 9. The minimum distance that an open vent terminal from a drainage system is ___________ horizontally from any door, openable window or other air intake opening. (Exceptions ignored.) 2 feet 5 feet 10 feet 12 feet 10. If a vent terminal extends through a wall it must terminate at least __________ feet above the highest surrounding grade within 10 feet of the vent terminal. 5 feet 10 feet 15 feet 20 feet 11. What is the minimum expansion tank capacity to be used in a system where a forced hot water system has a system volume of 70 gallons and the system is a pressurized diaphragm type? 6.0 6.5 9.0 10.5 12. A single-wall metal pipe connector must have a clearance of at least __________ inches from combustible materials for a residential furnace with a listed draft hood and gas conversion burner. 6 inches 9 inches 12 inches 15 inches 13. When air testing DWV systems on completion of the rough piping, the portion under test must be maintained at a gauge pressure of 5 pounds per square inch (psi) for a period of __________. 5 minutes 10 minutes 15 minutes 20 minutes 14. Pipes must be protected from external corrosion by a protective __________, or some other means that will withstand any reaction from the lime and acid of cinder, concrete, or other corrosive material when they must pass through cinder or concrete walls and floors, cold-formed steel framing, or other corrosive material. duct tape metal sleeve plastic or metal sleeve sheathing 15. If the manufacturer’s instructions on a whirlpool bathtub pump are not specific about minimum size of field fabricated access openings and location, the access opening for the circulation pump must be at least__________? 8 x 8 inches 10 x 10 inches 12 x 12 inches 15 x 15 inches 16. The minimum sized trap to be used for a shower drainage system is __________? 1.25 inches 1.5 inches 2 inches 2.5 inches 17. A pressure-relief valve must have a setting to open when system pressure reaches no more than __________ psi, and never in excess of the working pressure of the tank. 120 psi 135 psi 150 psi 165 psi 18. One-quarter bends 3 inches in diameter are acceptable for water closet or similar connections, provided that a ___________ flange is installed to receive the closet fixture horn. 2-inch by 3-inch 3-inch by 3-inch 4-inch by 3-inch 5-inch by 3-inch 19. A horizontal combination waste and vent pipe must have a max. slope of __________. 1/2 unit vertical in 12 units horizontal 1 unit vertical in 12 units horizontal 1 1/2 unit vertical in 12 units horizontal 2 unit vertical in 12 units horizontal 20. The sump pit must be a minimum of __________ deep. 12 inches 18 inches 24 inches 30 inches