Plumbing III Exam Questions with 100% correct Answers

Plumbing III Exam Questions with 100% correct Answers Offsets in a stack vent installed for the waste stack shall be located a min. Of___ inches above the flood level of the highest fixture. - ANSWER ️️ 6" (3109.3) Where the developed length of a sump vent is 110', what is the min. Req. vent size for a dump with a sewage pump having a discharge capacity of 60 gallons - ANSWER ️️ 2" (PT 3113.4.1) A 2 1/2" diameter pipe use as a combination waste & vent shall serve a max. Of___, fixture unit where connected to a horizontal branch - ANSWER ️️ 6" (PT 311.3) A 3" waste stack vent may be use for a max. Total discharge to the stack of______ - ANSWER ️️ 24" D.F.U. (PT 3109.4) Where fixture drains connect at diff. Levels & the vent connects as a vertical extension of the vertical drain, the vertical drain pipe connecting the 2 fixture drains shall be consider the vent for the lower fixture drain. If the vent pipe size is 2", what is the max. Permitted discharge from the upper fixture drain? - ANSWER ️️ 4 dfu (PT 3107.3) A vertical wet vent shall have a a min. Pipe size of___ where serving a total fixture unit load of 9 d.f.u. - ANSWER ️️ 3" (PT 3108.3) Vents having a min. Developed length exceeding___ shall be increased by one nominal pipe size for the entire developed length of the vent pipe. - ANSWER ️️ 40' (P 3113.1) PB pipe shall be supported @ max. Intervals of ___ when installed horizontally - ANSWER ️️ 32" (PT 2605.1( What is the max. Number of fixtures connected to a horizontal branch drain that are permitted to be circuit vented? - ANSWER ️️ 8 (p3110.1) Vent pipes shall be a min. Of___ inches in diameter - ANSWER ️️ 1 1/4" (P 3113.1) An individual vent may vent a max. Of ___ trap(s) or trap fixture(s) - ANSWER ️️ 2 P(3107.1) Where buried, water service pipe shall be installed a min. Of__ - ANSWER ️️ 12" (P 2603.5)