Self-Test D-3.6 Sumps and Catch Basins

Complete Self-Test D-3.6 and check your answers.

1. Complete the following statement: “A catch basin is a form of ______.”
   1. Trap
   2. Fixture
   3. Interceptor
   4. Appurtenance

    

2. What is/are commonly used to bring the grate of a round concrete catch basin up to the desired final elevation?
   1. Extension rings
   2. Elevation fittings
   3. More grates
   4. Vertical pipe

    

3. What is commonly cast into concrete catch basins to be used as lifting eyes?
   1. Bolts
   2. Nuts
   3. Washers
   4. Wire rope

    

4. What is installed inside a catch basin that prevents floating debris from being carried into the outlet piping?
   1. Backwater valve
   2. Downturned 90
   3. Check valve
   4. Gate valve

    

5. What is often cast into a catch basin’s grate to alert the public of environmental concerns downstream?
   1. Red flag
   2. Fish icon
   3. Skull and crossbones icon
   4. “Danger do not operate” warning

    

6. What might be installed in front of a garage that is below the elevation of the adjoining street?
   1. Trough drain
   2. Sewage sump
   3. French drain
   4. Subsoil drain

    

7. Which one of the following statements is correct?
   1. A catch basin has no piping outlet.
   2. A sump needs to be pumped out.
   3. A sewage sump has an open top.
   4. A catch basin needs a vent.

    

8. Where a sump does not operate automatically, its capacity shall be sufficient to hold at least how many hours of liquid accumulation.
   1. 1
   2. 6
   3. 12
   4. 24

    

9. What is the name of a piping system that is too low to drain by gravity to a building drain?
   1. Sub-drainage system
   2. Sub-soil drainage system
   3. Continuous waste system
   4. Combined building drainage system

    

10. What is commonly attached to the cord of a float switch in a sump to allow it to operate properly?
    1. Sensor
    2. Circuit breaker
    3. Lead weight
    4. Steel coupling

     

11. What happens if float switch #3 in a sump containing two pumps becomes inverted?
    1. Nothing
    2. Both pumps will shut off.
    3. Both pumps will come on.
    4. An alarm will sound.

     

12. What is sometimes used instead of a common support bar and lead weights to ensure that the float switches in a sump will operate properly?
    1. Individual support bars
    2. Vertical pipe or pole
    3. Individual alarm panels
    4. Submerged pressure switch

     

13. What is the result of a float switch that is turned upside down vertically?
    1. Reverses polarity
    2. Nothing happens.
    3. “Breaks”
    4. “Makes”

     

14. Which one of the following choices is not referenced as a component of a rail and yoke system for a sump?
    1. Yoke
    2. Base fitting
    3. Ridged electrical conduit
    4. Hinged connection with rubber seals

     

15. A sump with two pumps would be what type of system?
    1. Duplex
    2. Simplex
    3. Cineplex
    4. Complex

     

16. How many float switches are found in a residential packaged sump system?
    1. 1
    2. 2
    3. 3
    4. 4

     

17. How many openings are required in the lid of a packaged sump?
    1. 1
    2. 2
    3. 3
    4. 4

     

18. What are toilets that have a self-contained sump with a pump known as?
    1. Washdown
    2. Washout
    3. Siphon jet
    4. Macerating

     

19. What is the main installation consideration for installing bathtubs and showers that drain into an above-grade sump?
    1. Must be white
    2. Must be made of plastic
    3. Must be elevated on platforms
    4. Must not be used in any basement

     

20. What are the voltage and current values for the electrical circuit that powers a residential sump?
    1. 120 volt, single-phase direct current
    2. 208 volt, three-phase alternating current
    3. 120 volt, single-phase alternating current
    4. 240 volt, three-phase alternating current

     

Answer Key: Self-Test D-3.6 is on the next page.