2024 P1 Residential Plumbing Inspector Exam Quiz

What is the minimum required interior cross-sectional area for a standard residential shower compartment?

Every building must have at least one main vent that extends to the outdoors. The vent terminal must extend at least ________ above the roof.

If a pipe passes through a framing member and the hole is within ________ of the exposed edge of the member, a steel shield plate must be installed to protect the pipe from screws and nails.

To protect against cross-connection, all outdoor hose bibbs must be equipped with a:

If the static water pressure at the building entrance exceeds ________, an approved pressure-reducing valve (PRV) must be installed.

Water service pipe shall be installed not less than ________ deep, or not less than 6 inches below the frost line, whichever is greater.

For horizontal drainage piping that is 2.5 inches in diameter or smaller, what is the minimum required uniform slope?

The standpipe serving a clothes washer must extend a minimum of ________ and a maximum of ________ above the trap weir.

What is the minimum required diameter for a residential water service pipe supplying a dwelling?

The discharge tube from a water heater temperature and pressure (T&P) relief valve must terminate no more than ________ above the floor or waste receptor.

A 1.5-inch fixture drain (trap arm) has a maximum allowable distance from the trap weir to the vent fitting of:

What is the maximum allowable distance between cleanouts on a horizontal drain line?

Slip joints are permitted to be used in residential plumbing systems ONLY on the:

When installing horizontal PVC piping for plumbing drainage, what is the maximum allowable distance between supports?

If a vent pipe terminates outside, it must be located at least ________ horizontally from any openable window or door, unless it is at least 3 feet above the opening.

Standard fixture traps must have a liquid seal depth of not less than ________ and not more than ________.

When an Air Admittance Valve (AAV) is used to vent a fixture, it must be installed a minimum of ________ above the horizontal branch drain or fixture drain being vented.

A cleanout must be installed at the base of every:

If a water heater is installed in a location where a leak could cause structural damage, a galvanized steel or plastic drain pan must be installed. The drain pipe from this pan must have a minimum inner diameter of:

A water closet must have a minimum clearance of ________ from its center to any side wall or partition.