2018 IPC CH 3B Quiz

01. When installed horizontally, 11/4-inch polypropylene pipe and tubing shall be supportedat maximum intervals of __________.

• 32 inches
• 48 inches
• 8 feet
• 10 feet

02. A horizontal 4-inch PVC drainage pipe suspended from the ceiling requires ________ at a 90 degree turn.

• axial restraints
• sway bracing
• coupling restraints
• thrust blocks

03. 1/2" CPVC water pipe installed horizontally shall be supported at maximum intervals of __________ feet.

• 6.0
• 5.0
• 4.0
• 3.0

04. Support hangers for 10-foot lengths of cast-iron soil pipe suspended from a ceiling shall be spaced not more than __________ feet.

• 2.5
• 5.0
• 7.5
• 10.0

05. PVC pipe installed vertically requires a guide installed midway between required supports for pipe sizes __________ inch(es) and smaller.

• 1"
• 3"
• 2"
• 1-1/4"

06. Which of the following is not specifically allowed for sealing around a pipe that passes through an exterior wall?

• flashing
• caulk
• foam sealant
• gasketing system

07. When located in a flood hazard area, the top of a potable water well casing without a sealed cover shall extend not less than __________ inches above the design flood elevation.

• 6.0
• 12.0
• 18.0
• 24.0

08. When performing an air test on cast iron drain, waste and vent (DWV) piping at a pressure of 5 psi, the test gauge shall be marked at maximum __________ psi increments.

• 0.1
• 0.2
• 0.5
• 1.0

09. A water test on a building drain requires at least a __________ head of water.

• 5-foot
• 10-foot
• 12-foot
• 15-foot

10. The __________ is responsible for performing tests on plumbing piping systems.

• code official
• owner
• person doing the work
• permit holder