Plumbing Inspection Section#3 Drain, Waste and Vent Plumbing Quiz#2

You should have finished Study Session 1 before starting this study session. This study session deals with the common piping materials and their characteristics for drain, waste and vent piping.

The estimated completion time is 30 to 60 minutes.

Objectives
At the end of this study session, you should be able to:

• List seven different materials used for piping in drain, waste and vent systems.
• Describe in one sentence their characteristic colour and connection type.
• List their strengths and weaknesses.

• Question 1

  Needs Grading

  	Describe briefly how you can identify lead pipe in a drain, waste and vent system.
  	Selected Answer: From color, dull gray, shiny if scratched Correct Answer:   Lead is dull gray in color and is shiny if scratched. It is flexible, so there are no elbow or fittings. Response Feedback: [None Given]

• Question 2

  Needs Grading

  	Describe the construction of Orangeburg piping.
  	Selected Answer: It was used underground in the 1950s and 60s in some area. It is paper-based tube saturated with asphalt.  Correct Answer:   This is paper tubing saturated with asphalt Response Feedback: [None Given]

• Question 3

  Needs Grading

  	Describe the two methods of connecting cast iron pipe together in a drain, waste and vent system.
  	Selected Answer: 1. hubless 2. hub and spigot (bell and spigot) Correct Answer:   Bell and spigot with oakum and lead, or hubless with sleeve, gasket and clamps. Response Feedback: [None Given]

• Question 4

  Needs Grading

  	List seven different materials used for piping in drain, waste and vent systems.
  	Selected Answer: 1. Copper 2. ABS or PVC 3. Cast Iron 4. Lead 5. Galvanized steel 6. Brass 7. Clay Correct Answer:   - Copper - ABS plastic - PVC plastic - Cast iron - Lead - Galvanized steel - Brass - Clay Response Feedback: [None Given]

• Question 5

  Needs Grading

  	List three strengths of copper pipe as a drain, waste and vent material.
  	Selected Answer: 1. Smooth 2. Strong 3. Corrosion resistant Correct Answer:   1. Smooth 2. Strong 3. Corrosion resistant Response Feedback: [None Given]

• Question 6

  Needs Grading

  	List two weakness of ABS or PVC drain pipe.
  	Selected Answer: 1. Noisy 2. Combustible 3. Not as strong as metal piping 4. Attached by sunlight overtime Correct Answer:   1. Noisy 2. Combustible Response Feedback: [None Given]

• Question 7

  Needs Grading

  	What method is used to connect galvanized steel piping in drain, waste and vent system?
  	Selected Answer: threaded Correct Answer:   The joints are threaded Response Feedback: [None Given]

• Question 8

  Needs Grading

  	Why is brass piping easy to mistake for galvanized steel piping?
  	Selected Answer: similar color and connection types Correct Answer:   They both have threaded fittings Response Feedback: [None Given]

• Question 9

  0 out of 0 points

  	3 inch diameter copper pipe installed horizontally should be supported every:
  	Selected Answer:   10 feet Answers: 2 feet 4 feet 6 feet 8 feet   10 feet Response Feedback: Good work

• Question 10

  0 out of 0 points

  	Horizontal ABS pipe should be supported every:
  	Selected Answer:   4 feet Answers: 2 feet   4 feet 6 feet 8 feet 10 feet Response Feedback: Good work

• Question 11

  0 out of 0 points

  	Copper pipe can be connected in drain, waste and vent systems with crimp rings.
  	Selected Answer:  False Answers:  True False Response Feedback: That's not correct

• Question 12

  0 out of 0 points

  	PVC plastic pipe can be connected in drain, waste and vent systems with solder.
  	Selected Answer:  False Answers: True  False Response Feedback: Good work