IPC 3B

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. One-half-inch CPVC water pipe installed horizontally shall be supported at maximum intervals of __________ feet.

• 6
• 5
• 4
• 3

04. Support hangers for 10-foot lengths of cast-iron soil pipe suspended from a ceiling

• 2.5
• 5
• 7.5
• 10

05. PVC pipe installed vertically requires a guide installed midway between required

• 1
• 3
• 2
• 44869

06. Which of the following is not specifically allowed for sealing around a pipe that

• flashing
• caulk
• foam sealant
• gasketing system

07. When located in a flood hazard area, the top of a potable water well casing without a

• 6
• 12
• 18
• 24

08. When performing an air test on cast iron drain, waste and vent (DWV) piping at a

• 0.1
• 0.2
• 0.5
• 1

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