Plumbing Inspection Section#4 Plumbing Fixtures and Faucets Quiz#4

You should have finished Study Session 3 before starting this study session. This study session deals with bathtubs, tub and shower stall enclosures, and shower stall bases.

The estimated completion time is one and a half to two hours.

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

• List seven problems found with bathtubs.
• Describe in one sentence the risk of cross connection at faucets.
• List two problems found with tub and shower stall enclosures.
• List six problems found with shower stalls.
• Describe in two sentences the construction of tile enclosures.
• Describe in three sentences the construction of mortar bed tile shower stalls.
• Describe in one sentence how shower stall enclosures and bases fail.

• Question 1

  Needs Grading

  	Briefly describe a test used to determine if the tiles in an enclosure are bonded well to the backer material.
  	Selected Answer: Pushing and tapping on tiles, concentrating on areas around and below penetrations and at the top of the tub or shower base.  Correct Answer:   Tap or press on the tiles, looking for spongy areas or give in the tiles or tiles that sound loose and tinny. Response Feedback: [None Given]

• Question 2

  Needs Grading

  	Describe the components in a mortar bed tile shower stall base.
  	Selected Answer: 1. Mortar sub-base 2. Membrane-type liner 3. Top half of drain assembly 4. Mortar base on top of the lining 5. Tiles Correct Answer:   - sloped sub-base of mortar - membrane liner, of neoprene typically - another mortar base on top of the membrane - tiles on the mortar Response Feedback: [None Given]

• Question 3

  Needs Grading

  	List five specific areas where tile enclosures are vulnerable to leakage.
  	Selected Answer: 1. Poor grout work 2. Poor sealing of joints 3. Lack of maintenance 4. Building settlement Correct Answer:   1. Faucets 2. Soap dishes 3. Grab bars 4. Windows 5. Changes in direction or material Response Feedback: [None Given]

• Question 4

  Needs Grading

  	List four different types of backer material for a ceramic shower stall.
  	Selected Answer: 1. Lightweight concrete panels 2. Drywall 3. Moisture-resistant or modified drywall 4. Cementitious mud or mortar Correct Answer:   1. Cementitious mud or mortar over metal lath 2. Drywall 3. Moisture resistant or modified drywall 4. Cementitious backer panels Response Feedback: [None Given]

• Question 5

  Needs Grading

  	List seven common bathtub problems.
  	Selected Answer: 1. Leaks 2. Rust 3. Surface defects 4. Cross connection 5. Not level 6. Overflow leaking, disconnected or rusted 7. Loose or unstable 8. Slow drains Correct Answer: 1. Leaks 2. Rust 3. Surface defects 4. Cross connections 5. Not level 6. Overflow leaking, disconnected or rusted loose or unstable 7. Slow drains 8. Loose or unstable Response Feedback: [None Given]

• Question 6

  Needs Grading

  	What is the most leak-proof type of shower stall?
  	Selected Answer: Cementitious mud Correct Answer:   One-piece acrylic, fiberglass or laminated plastic. Response Feedback: [None Given]

• Question 7

  Needs Grading

  	Which way should a hinged shower door open in a shower stall?
  	Selected Answer: Side  Correct Answer:   Outward Response Feedback: [None Given]

• Question 8

  Needs Grading

  	Why are tile enclosures on exterior walls more vulnerable than ones on interior walls?
  	Selected Answer: Vapor barrier and insulation details are often poorly executed.  Correct Answer: The vapor barrier and insulation details are often poorly done. Condensation damage is common in this area, as warm house air leaks into the wall and vapor condenses in the cold exterior wall cavity. Response Feedback: [None Given]

• Question 9

  Needs Grading

  	Why does it not matter if the tub is slightly out of level?
  	Selected Answer: Won't leak Correct Answer: The apron is usually sloped slightly so that water will drain back into the tub. If the tub is not installed level, water on the apron may drain away from the tub, damaging walls or floors. Response Feedback: [None Given]

• Question 10

  0 out of 0 points

  	Is it possible to find a shower stall that has no sill or threshold?
  	Selected Answer:   No Answers:   Yes No Response Feedback: That's not correct

• Question 11

  0 out of 0 points

  	What is the minimum entrance width for shower stalls?
  	Selected Answer:   30 inches Answers: 18 inches   22 inches 26 inches 30 inches there is no minimum requirement Response Feedback: That's not correct

• Question 12

  0 out of 0 points

  	Because there is a watertight liner underneath the tiles in a shower stall base, the floor is not required to slope to drain.
  	Selected Answer:  False Answers: True  False Response Feedback: Good work

• Question 13

  0 out of 0 points

  	The purpose of the tile lip on an enamel steel bathtub is to prevent water leakage back behind the tiles.
  	Selected Answer:  True Answers: True  False Response Feedback: That's not correct