A(n)_________is the lowest point on the interior of a horizontal pipe.

• Well

• Crown

• Invert

• Weir

Plumbing codes generally refer to building drain and waste piping, the "DW" of the DWV system, as the sanitary drainage system.

• True

• False

The size of a stack is based on the ___.

• amount of flow from the horizontal branches entering the stack

• number of horizontal branches entering the stack

• height of the stack

•  number of fixtures that contribute to stack piping

An air test forces air into a system until there is a uniform gauge pressure of 10 psi.

• True

• False

 

Branch connections are not allowed within ___' of the vertical offset fittings.

• 1ft

• 2ft

• 3ft

• 4ft

A(n) ____________________ is a quantity in terms of which the load producing effects on a plumbing system of different kinds of plumbing fixtures are expressed.

The penetration of plastic and copper pipe by nails, screws, or staples is very common.

• Never

• True

• False

Vent stacks must connect to the drainage stack at a point ___' above the lowest point of the drainage stack.

___ are basically a female threaded fitting with a plug.

A cleanout is required by the 2018 UPC for each aggregate horizontal change of direction exceeding ____________________°.