As a designer, it is important that your designs meet existing codes. Since the clients live in another town, what would the best option for you to ensure compliance with all applicable codes?

Check to see if there is local code enforcement

You will always be safe if you reference the IRC

Listed below are four things that are important in eliminating moisture and mold problems in the bath. Which one is the most important?

application of moisture resistant wall board

application of whole house moisture barrier

Your clients are in their late 60's and have asked you to design their bath to meet their needs for several years. Both are healthy but they plan to live in their home for a long time. You have suggested that they might want to make the space wheelchair accessible. They agree and ask for your advice. You suggest a space for a wheelchair to turn around without backing up. What is the shape & dimension of the space you recommend?

A circle with a diameter of 60"

A circle with a diameter of 54"

A "T" Shaped space with a dimension of 60" in length and 60" in width. The "legs" of the "T" must be at least 36" in width.

A space in front of the door at least 36" x 70".

You are placing a lav. across from a wall in a very small bath. You want to be sure there is room for your clients to wash their hands and face, but they also need a vanity as large as possible for storage in the small space. How much space is required in front of a lav. for the average person to stand and wash their face and hands?

18" for hand washing and 20" for face washing

21" for hand washing and face washing

18" for hand washing and 21" for face washing

20" for hand washing and 18" for face washing

18" for hand washing and 20" for face washing

A utility bath is planned for a new addition in the client's home. They would like to include a separate washer and dryer in the bath space. Both appliances are electric. What are the electrical requirements for these two appliances?

120 volt - 20 amp washer, 240 volt - 50 amp dryer

240 volt - 20 amp washer, 140 volt - 20 amp dryer

120 volt - 50 amp washer, 240 volt - 50 amp dryer

120 volt - 30 amp washer, 240 volt - 30 amp dryer

120 volt - 20 amp washer, 240 volt - 50 amp dryer

Your design includes a bathtub against an exterior wall with a window above. You are concerned about the distance from the standing surface of the tub to the glass. If it is too close you will need to replace the existing glass with tempered glass. What is the IRC requirement for this distance?

60" from standing surface to the bottom of the window.

54" from standing surface to the top of the window.

54" from standing surface to the bottom of the window.

60" from standing surface to the top of the window.

Nkba AKBD Bath Planning

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| Written by Jillianbrinkman

Jillianbrinkman

Community Contributor

Quizzes Created: 6 | Total Attempts: 626

Questions: 15 | Attempts: 73 | Updated: Jun 29, 2023

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Questions and Answers

1.

Plumbing codes are important when insuring the health, safety, and welfare of your clients. The Bureau of Standards for basic plumbing was the first attempt at any plumbing standards. When were they introduced in the US?
- A.
  
  1910
- B.
  
  1918
- C.
  
  1924
- D.
  
  1944
Correct Answer
C. 1924

Explanation
chapter 1

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2.

Linoleum replaced the white tile look in what decade?
- A.
  
  1940's
- B.
  
  1930's
- C.
  
  1920's
- D.
  
  1910'a
Correct Answer
A. 1940's

Explanation
chapter 1

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3.

As a designer, it is important that your designs meet existing codes. Since the clients live in another town, what would the best option for you to ensure compliance with all applicable codes?
- A.
  
  Use the NKBA guidelines
- B.
  
  Check local codes for the area
- C.
  
  Check to see if there is local code enforcement
- D.
  
  You will always be safe if you reference the IRC
Correct Answer
B. Check local codes for the area

Explanation
chapter 2

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4.

You are planning a 30" wide recessed medicine cabinet in a wall. The previous medicine cabinet was flush mounted. What is the most important thing the designer must consider with all applicable codes?
- A.
  
  Thickness of drywall
- B.
  
  Size of studs
- C.
  
  Access to electricity
- D.
  
  Load/non-load bearing wall
Correct Answer
D. Load/non-load bearing wall

Explanation
chapter 2

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5.

You are adding a new bath in a basement. The toilet will be 3" below the sewer line serving the home. Which one of the following toilets would you recommend?
- A.
  
  Wall hung
- B.
  
  Ejector
- C.
  
  Composting
- D.
  
  Reverse siphon
Correct Answer
B. Ejector

Explanation
chapter 2

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6.

Listed below are four things that are important in eliminating moisture and mold problems in the bath. Which one is the most important?
- A.
  
  Application of moisture resistant wall board
- B.
  
  Application of whole house moisture barrier
- C.
  
  Mildew resistant paint
- D.
  
  Good ventilation
Correct Answer
D. Good ventilation

Explanation
chapter 3

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7.

You are planning a powder room bath below a staircase leading to the upper level. You are concerned about the space in front of the lav. and toilet. According to the IRC, what is the minimum space (floor to ceiling) permitted over the two fixtures?
- A.
  
  72"
- B.
  
  78"
- C.
  
  80"
- D.
  
  96"
Correct Answer
C. 80"

Explanation
chapter 6

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8.

Your clients are in their late 60's and have asked you to design their bath to meet their needs for several years. Both are healthy but they plan to live in their home for a long time. You have suggested that they might want to make the space wheelchair accessible. They agree and ask for your advice. You suggest a space for a wheelchair to turn around without backing up. What is the shape & dimension of the space you recommend?
- A.
  
  A circle with a diameter of 60"
- B.
  
  A circle with a diameter of 54"
- C.
  
  A "T" Shaped space with a dimension of 60" in length and 60" in width. The "legs" of the "T" must be at least 36" in width.
- D.
  
  A space in front of the door at least 36" x 70".
Correct Answer
A. A circle with a diameter of 60"

Explanation
chapter 6

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9.

You are placing a lav. across from a wall in a very small bath. You want to be sure there is room for your clients to wash their hands and face, but they also need a vanity as large as possible for storage in the small space. How much space is required in front of a lav. for the average person to stand and wash their face and hands?
- A.
  
  21" for hand washing and face washing
- B.
  
  18" for hand washing and 21" for face washing
- C.
  
  20" for hand washing and 18" for face washing
- D.
  
  18" for hand washing and 20" for face washing
Correct Answer
D. 18" for hand washing and 20" for face washing

Explanation
chapter 6

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10.

Use the example above for this question. Since space is an issue, you decided to apply the code IRC dimension rather than the dimension recommended by the NKBA. What was your choice for the distance between the wall and lav.?
- A.
  
  20"
- B.
  
  21"
- C.
  
  27"
- D.
  
  30"
Correct Answer
B. 21"

Explanation
appendix a

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11.

Your design includes a transfer shower. What is the minimum size for this type of shower?
- A.
  
  36" x 36"
- B.
  
  36" x 42"
- C.
  
  42" x 42"
- D.
  
  36" x 60"
Correct Answer
A. 36" x 36"

Explanation
chapter 6

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12.

What is the minimum clear floor space in front of a transfer shower?
- A.
  
  36" x 36"
- B.
  
  36" x 42"
- C.
  
  36" x 48"
- D.
  
  36" x 60"
Correct Answer
C. 36" x 48"

Explanation
appendix a, page 386-7.

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13.

A utility bath is planned for a new addition in the client's home. They would like to include a separate washer and dryer in the bath space. Both appliances are electric. What are the electrical requirements for these two appliances?
- A.
  
  240 volt - 20 amp washer, 140 volt - 20 amp dryer
- B.
  
  120 volt - 50 amp washer, 240 volt - 50 amp dryer
- C.
  
  120 volt - 30 amp washer, 240 volt - 30 amp dryer
- D.
  
  120 volt - 20 amp washer, 240 volt - 50 amp dryer
Correct Answer
D. 120 volt - 20 amp washer, 240 volt - 50 amp dryer

Explanation
chapter 9

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14.

Your design includes a bathtub against an exterior wall with a window above. You are concerned about the distance from the standing surface of the tub to the glass. If it is too close you will need to replace the existing glass with tempered glass. What is the IRC requirement for this distance?
- A.
  
  60" from standing surface to the bottom of the window.
- B.
  
  54" from standing surface to the top of the window.
- C.
  
  54" from standing surface to the bottom of the window.
- D.
  
  60" from standing surface to the top of the window.
Correct Answer
A. 60" from standing surface to the bottom of the window.

Explanation
appendix a, page 405

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15.

Designer "L" is working with a client who would like a hanging light fixture placed over their whirlpool tub. The deck of the bathtub is 16" AFF. The fixture will hang down from the ceiling 30". If you are to meet the IRC requirement, the ceiling must be at least ___ high?
- A.
  
  8'-0"
- B.
  
  10'-0"
- C.
  
  12'-0"
- D.
  
  14'-0"
Correct Answer
C. 12'-0"

Explanation
appendix a, pg. 416

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Nkba AKBD Bath Planning

Plumbing codes are important when insuring the health, safety, and welfare of your clients. The Bureau of Standards for basic plumbing was the first attempt at any plumbing standards. When were they introduced in the US?

Linoleum replaced the white tile look in what decade?

As a designer, it is important that your designs meet existing codes. Since the clients live in another town, what would the best option for you to ensure compliance with all applicable codes?

You are planning a 30" wide recessed medicine cabinet in a wall. The previous medicine cabinet was flush mounted. What is the most important thing the designer must consider with all applicable codes?

You are adding a new bath in a basement. The toilet will be 3" below the sewer line serving the home. Which one of the following toilets would you recommend?

Listed below are four things that are important in eliminating moisture and mold problems in the bath. Which one is the most important?

You are planning a powder room bath below a staircase leading to the upper level. You are concerned about the space in front of the lav. and toilet. According to the IRC, what is the minimum space (floor to ceiling) permitted over the two fixtures?

Use the example above for this question. Since space is an issue, you decided to apply the code IRC dimension rather than the dimension recommended by the NKBA. What was your choice for the distance between the wall and lav.?

Your design includes a transfer shower. What is the minimum size for this type of shower?

What is the minimum clear floor space in front of a transfer shower?

A utility bath is planned for a new addition in the client's home. They would like to include a separate washer and dryer in the bath space. Both appliances are electric. What are the electrical requirements for these two appliances?

Your design includes a bathtub against an exterior wall with a window above. You are concerned about the distance from the standing surface of the tub to the glass. If it is too close you will need to replace the existing glass with tempered glass. What is the IRC requirement for this distance?

Designer "L" is working with a client who would like a hanging light fixture placed over their whirlpool tub. The deck of the bathtub is 16" AFF. The fixture will hang down from the ceiling 30". If you are to meet the IRC requirement, the ceiling must be at least ___ high?