Waste Classification and Plumbing Terms

Solid waste refers to waste discharged by water closet, while liquid waste comes from various fixtures.

The air gap provides an unobstructed vertical distance to prevent back flow of contaminated water into the potable water supply.

Back siphonage is the flow of contaminated water into the potable water supply due to negative pressure.

<p>A battery of fixtures refers to a group of similar adjacent fixtures discharging into a common horizontal waste pipe or soil branch.</p> Signup and view all the answers

<p>A branch vent connects one or more individual vents to a vent stack.</p> Signup and view all the answers

<p>A blind flange is a flange that closes the end of a pipe, with no opening for the passage of water.</p> Signup and view all the answers

<p>The diameter of a pipe or tube refers to the nominal internal diameter (ID), except for brass and copper tubes where it refers to the outside diameter (OD).</p> Signup and view all the answers

<p>A drainage system includes all piping within public or private premises that conveys sewage, rainwater, or other liquid waste to a legal point of disposal. It excludes mains of public sewer systems, private or public sewerage treatment, or disposal plants.</p> Signup and view all the answers

<p>A dry vent is a vent that does not carry water or water-borne wastes.</p> Signup and view all the answers

<p>An effective opening is the minimum cross-sectional area at the point of water supply discharge, measured or expressed in terms of the diameter of a circle.</p> Signup and view all the answers

<p>A fixture branch is a pipe connecting several fixtures.</p> Signup and view all the answers

<p>A fixture unit is a quantity that expresses the load-producing effects on the plumbing system of different kinds of plumbing fixtures on some arbitrarily chosen scale.</p> Signup and view all the answers

<p>To receive sub-surface or seepage water and convey it to a place of disposal.</p> Signup and view all the answers

<p>To provide a liquid seal that prevents the back passage of air without affecting the flow of sewage.</p> Signup and view all the answers

<p>To provide circulation of air to different parts of the drainage system.</p> Signup and view all the answers

<p>A waste pipe conveys liquid waste from fixtures, while a vent pipe provides air circulation to the drainage system.</p> Signup and view all the answers

<p>A sump is a pit or receptacle at a low point that receives liquid waste, which is then drained away.</p> Signup and view all the answers

<p>The trap seal is the maximum vertical depth of liquid that a trap will retain, measured between the crown weir and top of the dip of the trap.</p> Signup and view all the answers