Texas Plumbing Tradesman Questions with 100% Correct Answers

Access cover Correct Answer A removable plate, usually secured by bolts or screws, to permit access to a pipe or pipe fitting for the purpose of inspection, repair or cleaning. Air Admittance Valve (AAV) Correct Answer One-way valve designed to allow air to enter the plumbing drainage system when negative pressure develops in the piping system. Air Break (Drainage System) Correct Answer An arrangement in which a discharge pipe from a fixture, appliance or device drains indirectly into a receptor below the flood-level rim of the receptor, and above the trap seal. Air gap Correct Answer Indirect waste arrangement where the waste is discharged to the drainage system through piping that terminates at a specific distance above the flood level rim. ( 2 times the pipe size, never less than 1 inch) Area Drain Correct Answer A receptor designed to collect surface or storm water from an open area Backflow Correct Answer Unwanted reverse flow of contaminants through a cross-connection into a potable water system. It occurs when the pressure in the potable water supply drops below the pressure of the contaminated supply. Back siphonage Correct Answer backflow due to negative pressure Back water valve Correct Answer a device installed in a drainage system to prevent reverse flow . Branch Correct Answer any part of the piping system other than a main, riser or stack. Branch interval Correct Answer A VERTICAL LENGTH OF SOIL OR WASTE STACK at least 8 ft in height, between the connections of horizontal branches to a drainage system. Branch vent Correct Answer A vent connecting one or more individual vents with a vent stack or stack vent Building Drain Correct Answer That part of the lowest piping of a drainage system that receives the drainage from soil, waste, and other drainage pipes inside and extends 2 to 5 feet beyond the exterior of the building.