Plumbing Inspection Section#1 Supply Plumbing Quiz#3

You should have finished Study Session 2 before starting this study session. This study session deals with service piping, service entrance piping, or water entry piping.

The estimated completion time is one hour.

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

• List nine types of pipe which can be used as water service pipe.
• Describe in two sentences each the physical characteristics of each type of these pipes.
• List the common weaknesses of each type of pipe.
• List four problems found with water service pipes.
• Describe the function of a stop and waste valve.
• List seven problems found with shutoff valves.

• Question 1

  Needs Grading

  	List four reasons for low pressure with the water service piping.
  	Selected Answer: 1. The water meter presents a significant bottleneck in the supply system 2. The pipe may be corroded, especially if it's galvanized steel 3. The piping may be crimped, which is common with lead or copper 4. There may be obstructions in the piping 5. It may be small diameter piping 6. Occasionally, low pressure is due to a partly closed city valve Correct Answer: - The water meter may present a bottleneck in the supply system - The pipe may be corroded, especially if it is galvanized steel - The piping may be crimped, which is common with lead or copper - The may be obstructions in the piping - It may be small diameter piping - A partly closed city valve Response Feedback: [None Given]

• Question 2

  Needs Grading

  	List six different materials commonly used for water service piping.
  	Selected Answer: 1. Copper 2. Galvanized steel 3. Lead 4. PVC and CPVC plastic 5. Polyethylene plastic 6. Polybutylene plastic 7. Cast iron 8. Asbestos cement 9. Brass Correct Answer:   -Copper -Galvanized Steel -Lead -PVC Plastic -CPVC Plastic -Polyethylene Plastic -Polyputylene Plastic -Cast Iron -Asbestos Cement -Brass Response Feedback: [None Given]

• Question 3

  Needs Grading

  	What is the function of a stop and waste valve?
  	Selected Answer: The purpose of this stop and waste valve is to drain all the water out of the supply piping, for example, if the house is to be winterized.  Correct Answer:   A stop and waste valve shuts off the water supply and allows the system plumbing to be drained. Response Feedback: [None Given]

• Question 4

  Needs Grading

  	What is the one soil condition which causes problems with copper water service pipe?
  	Selected Answer: Highly acidic soils Correct Answer:   Highly acidic soil Response Feedback: [None Given]

• Question 5

  Needs Grading

  	What is the typical diameter of water service piping in modern construction?
  	Selected Answer: 3/4 inch Correct Answer:   3/4 inch Response Feedback: [None Given]

• Question 6

  Needs Grading

  	Where does galvanized steel piping typically fail first?
  	Selected Answer: Rust inside Correct Answer:   At the threaded connections Response Feedback: [None Given]

• Question 7

  Needs Grading

  	Why does plastic pipe need to be wrapped where it is exposed outside the building?
  	Selected Answer: To protect it from ultraviolet ligth and insulated where necessary to protect it from the cold.  Correct Answer:   To protect it from ultraviolet light Response Feedback: [None Given]

• Question 8

  0 out of 0 points

  	Brass water service piping was last commonly used in:
  	Selected Answer:   1935 Answers: 1900 1915   1935 1960 1990 Response Feedback: Good work

• Question 9

  0 out of 0 points

  	Lead content of solder is typically restricted to:
  	Selected Answer:   2/10 of 1% Answers: 1/100 of 1% 2/100 of 1% 1/10 of 1%   2/10 of 1% 1% Response Feedback: Good work

• Question 10

  0 out of 0 points

  	What is the one fixture in the house which should have an isolating valve?
  	Selected Answer:   toilet Answers: basin sink tub   toilet shower stall Response Feedback: Good work

• Question 11

  0 out of 0 points

  	Lead piping typically uses elbows.
  	Selected Answer:  False Answers: True  False Response Feedback: Good work

• Question 12

  0 out of 0 points

  	Stainless steel service piping is common in many areas.
  	Selected Answer:  True Answers: True  False