2021 IPC Chapter 3

For pipe sizes greater than ______________ inches, restraints shall be provided for drainpipes at all changes in direction and at all changes in diameter greater than two pipe sizes.

• 4

• 2

• 6

• 8

Where sheathing is used to prevent direct contact between copper piping and concrete walls and floors, the sheathing shall be plastic and have a thickness of not less than ________ inch.

• 0.008 (8mil)

• 0.002 (2mil)

• 0.015 (15mil)

• 0.025 (25mil)

Plumbing products and materials required to comply with a referenced standard shall be listed by a ________ - ________ __________ ____________ as complying with the referenced standards.

• third-party certification agency

• local plumbing inspector

• manufacturer's representative

• building owner

In a parallel water distribution system where hot water piping is bundled with cold water piping, hot water piping shall be ______________ in accordance with Section 607.5.

• insulated

• painted

• exposed

• buried

Exterior water supply system piping shall be installed not less than ______ inches below the frost line and not less than ______ inches below grade.

• 6, 12

• 4, 8

• 8, 16

• 10, 20

The maximum horizontal spacing to support copper or copper-alloy pipe is ________ feet.

• 12

• 6

• 8

• 16

For horizontal pipes, rigid support sway bracing shall be provided at changes in direction greater than 45 degrees for pipe sizes ________ inches and larger.

• 4

• 2

• 6

• 8

A thermal expansion tank shall be ____________ in accordance with the manufacturer’s instructions.

• supported

• painted

• buried

• disconnected

In concealed locations where piping is installed through holes or notches in studs, joists or rafters less than ________ inches from the nearest edge of the member, the pipe shall be protected by steel shield plates.

• 1 ¼

• 2

• 1 ½

• 2 ½

The final test of the completed drainage and vent system shall be ________ and in sufficient detail to determine compliance with the provisions of this code.

• visual

• audible

• manual

• chemical