Plumbing Exam Questions with Complete Verified & Updated Solutions

Plumbing Exam Questions with Complete Verified & Updated Solutions A journeyman plumber and an apprentice, who are employed by a master plumber, are installing the DWV-system and water distribution system in a 2-½ story single family dwelling. QUESTION: What answer below shall be considered most correct to complete the following "Plumbing code knowledge" related statement: A trap that serves a single shower stall that is equipped with a hand shower, a rain head, and a standard shower head shall be no less than ________ in minimum diameter A) 1-½" B) 2" C) 2-½" D) 3" - ANSWER ️️ 2 inches A journeyman plumber and apprentice are installing 3-inch floor drains in an open- parking-garage that is subject to freezing temperatures. QUESTION: What answer below shall be considered most correct to complete the following "Plumbing code knowledge" related statement: The installation of traps at the floor drain locations which are found susceptible to freezing temperatures may be __________. A)Increased to 4-inch B) Eliminated C) Wrapped with freeze protection cable D) Insulated - ANSWER ️️ eliminated A journeyman plumber and apprentice are installing lab sinks with faucets that are connected to an acid waste system for-(special hazardous waste) in a medical lab. What answer below shall be considered most correct to complete the following "Plumbing code knowledge" related statement: Vacuum breakers shall be installed with the critical level at least _____-inches above the flood level rim of the fixture they serve and on the discharge side of the last control valve to the fixture. A) 12 B) 6 C) 18 D) 3 - ANSWER ️️ 6 inches What answer below shall be considered most correct to complete the following "Plumbing code knowledge" related statement: No plumbing permit shall be issued for cross connection installations that require ______________ until the application for a permit is accompanied by a letter of approval from the Massachusetts Department of Environmental Protection or its designee. A) RPBP B) A "critical level" height C) Atmospheric vacuum breakers D) Water recycling systems - ANSWER ️️ reduced pressure backflow preventer (RPBP) : What answer below shall be considered most correct to complete the following "Plumbing code knowledge" related statement: The waste discharge from safe waste pans serving water heaters or hot water storage tanks where there is _______ below and shall be piped indirectly to a properly trapped and vented fixture. A) People B) Occupancy C) Floors D) Plumbing connections - ANSWER ️️ occupancy GIVEN: A journeyman plumber and an apprentice, (who are employed by a master plumber), are installing the sanitary DWV and water distribution system in a five- story residential condominium complex. QUESTION: What answer below shall be considered most correct to complete the following "Plumbing code knowledge" related statement: CPVC-(Chlorinated Polyvinyl Chloride) pipe and fittings may be used provided that none of this material is located within ____-inches of any connection to a hot water tank as defined in MGL. c. 142, § 17 A) 12 B) 18 C) 20 D) 24 E) 30 - ANSWER ️️ 24 inches : A journeyman plumber and apprentice are roughing-in multiple fixtures in a new fitness center. The facility will include a juice bar, temporary daycare room, men's and women's toilet facilities and men's and women's locker rooms. QUESTION: What answer below shall be considered most correct to complete the following "Plumbing code knowledge" related statement: A ________-vent is a branch vent that serves two or more floor-outlet fixtures that are battery wasted. The vent extends from the top of the horizontal soil and/or waste branch in front of the last fixture waste and connects to a vent stack or stack vent that is adjacent to the down-stream end of the horizontal bra