Chapter 3 Question set (Sanitary Drainage, Vent, and storm water draining piping) exam questions fully solved & updated 2024

No water closet is permitted to discharge its waste into a horizontal drainage pipe less than ____" in diameter. 3 1 Drainage Fixture Unit (DFU) is equal to _____ gallons of water draining in one minute through a lavatory waste outlet. 7.5 No more than ____ water closets may drain into a 3" horizontal drainage pipe. 2 If a structure has three or more water closets, the building drain should not be less than _____" in diameter. 4 In a building with a plumbing system, it is required that the system be vented with a pipe that is at least _____ " in diameter or larger. 3 When venting a plumbing system for a building the stack should be located _________ where the building drain leaves the building. farthest from Horizontal drainage piping is graded ____ " per foot of run to provide adequate drainage. 1/4 In determining the best connections for changes in direction of the sanitary drainage system, it is important to remember that ___________ fittings reduce the probability of waste stoppage. Long-sweep Vent terminals typically extend at least _____ through the roof to prevent rainwater on the roof from draining into the terminals and to prevent objects on the roof from falling into and blocking the vent openings. 1' Vent terminals should be located at least _____ from windows, doors, or other ventilation openings. 10' The condition that may occur when a vent terminal becomes plugged as a result of frost build-up is termed ___________. trap seal loss In Rexburg, vent pipes passing through the roof should be at least ______ pipe. 2" A ___________ is the portion of a vent pipe through which liquid waste flows. wet vent