Self-Test C-1.2: Fixture and Trim Installation

Complete Self-Test C-1.2 and check your answers.

1. What is backing?
   1. Material installed behind the finished wall used to support fixtures
   2. An internal frame built into each fixture
   3. Guards used to protect floor-mounted fixtures from damage
   4. Material used to hide drain piping behind fixtures

    

2. What support is designed to carry the weight of the fixture and the user?
   1. Fixture brackets
   2. Backing boards
   3. Fixture carriers
   4. Plywood framing

    

3. What fitting is used to rough-in the water supply for a shower head?
   1. Wing back
   2. Spout bracket
   3. Street tee
   4. Angle stop

    

4. What is the minimum length required for a clothes washer standpipe?
   1. 300 mm
   2. 450 mm
   3. 600 mm
   4. 1,200 mm

    

5. What classification system relates to the amount of time a barrier will hold back fire?
   1. Fire stop
   2. Smoke screen
   3. Heat barrier
   4. Blaze guard

    

6. If a wall stud is load-bearing, what is the maximum amount of stud that can be removed?
   1. One-half of the width
   2. One-third of the depth
   3. 50 mm of the width
   4. 40 mm of the depth

    

7. What must be done when piping travels through a firewall or horizontal fire separation?
   1. Be a minimum 300 mm above the finished floor
   2. Be within 5 m of a fire sprinkler
   3. Have a steel flange at the wall
   4. Have a seal that maintains the fire-stop rating

    

8. What do plumbing codes define?
   1. Suggested guidelines for installing fixtures
   2. Minimum requirements for installing fixtures
   3. Recommended design for installing fixtures
   4. Best practices for installing fixtures

    

9. Which set of drawings provides the dimensions for each room and identifies the arrangement of fixtures?
   1. Architectural
   2. Structural
   3. Mechanical
   4. Electrical

    

10. In installations where tolerances are narrow, what should be done before rough-in to confirm the dimensions on the rough-in documentation?
    1. Refer to previous installations.
    2. Measure the fixture.
    3. Ask the supervisor to check it.
    4. Look up dimensions online.

     

11. Most rough-in documents from manufacturers provide dimensions measured from what surfaces?
    1. Subfloor
    2. Rough studs
    3. Underside of joists
    4. Finished walls or floors

     

12. What is the correct flood level rim height for the wall-hung lavatory shown in the rough-in documentation in Figure 1?
    1. 187 mm
    2. 432 mm
    3. 546 mm
    4. 787 mm
       

       

     

13. What is the correct waste outlet centreline height for the wall-hung lavatory shown in the rough-in documentation in Figure 1?
    1. 241 mm
    2. 432 mm
    3. 546 mm
    4. 470 mm

     

14. What type of drawing would show the size of pipes and fittings and the connections between piping, including the path of travel?
    1. Piping isometric
    2. Architectural drawing
    3. Rough-in document
    4. Structural drawing

     

15. What should be done immediately after receiving a delivery of fixtures from a plumbing supplier?
    1. Take a coffee break.
    2. Uncrate all fixtures.
    3. Check fixtures for damage.
    4. Ask a supervisor to inspect the shipment.

     

16. What should not be used to tighten the locknut securing the drain plug fitting to a basin’s outlet?
    1. Adjustable wrench
    2. Pipe wrench
    3. Spud wrench
    4. Hex wrench

     

17. Who has the final word regarding the acceptance of plumbing fixture installations?
    1. Installer of the fixture
    2. Owner of the fixture
    3. Manufacturer of the fixture
    4. Authority having jurisdiction

     

Answer Key: Self-Test C-1.2 is on the next page.