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2024 IRC—STORM DRAINAGE QUIZ
1. According to Section P3301.1, the provisions of Chapter 33 regulate which of the following?
A. Only subsoil drainage systems
B. Materials, design, construction, and installation of storm drainage
C. Residential roof water collection only
D. Sewage disposal systems
2. What is the minimum required diameter for subsoil drain pipes under Section P3302.1?
A. 2 inches
B. 3 inches
C. 4 inches
D. 6 inches
3. Where should subsoil drains discharge according to Section P3302.1?
A. Directly into the sanitary sewer system
B. Into a dry well, trapped area drain, sump, or approved location above ground
C. Below grade without any additional drainage system
D. Directly into the storm sewer without approval
4. Which of the following materials is not listed in Table P3302.1 as an approved subsoil drain pipe material?
A. Cast-iron pipe
B. Polyethylene (PE) plastic pipe
C. Copper pipe
D. Vitrified clay pipe
5. What is the minimum required depth for a sump pit under Section P3303.1.2?
A. 18 inches
B. 24 inches
C. 36 inches
D. 48 inches
6. According to Section P3303.1.2, sumps shall be constructed from which of the following materials?
A. Tile, steel, plastic, cast iron, concrete, or other approved materials
B. Only cast iron and plastic
C. PVC and steel only
D. Any available material without restrictions
7. What is the requirement for discharge piping under Section P3303.1.4?
A. It must be the same size as, or larger than, the pump discharge tapping
B. It must be no larger than 1 inch in diameter
C. It should be installed without a check valve
D. It must only be made of PVC
8. Which of the following applies to the electrical outlets used for sump pumps as per Section P3303.1.3?
A. They must comply with Chapters 34 through 43 of the IRC
B. They can be installed without GFCI protection
C. They should only be installed in wet locations
D. They can be connected to any available circuit
9. What is required to protect subsoil drains in areas subject to backwater conditions?
A. Installation of an accessibly located backwater valve
B. Use of larger drain pipes
C. Direct connection to the sewer system
D. No special requirements apply
10. According to Section P3303.1.1, what must the sump pump capacity and head be based on?
A. Standard manufacturer recommendations
B. Anticipated use requirements
C. The maximum water table depth
D. Local plumbing codes only
1. According to Section P3301.1, the provisions of Chapter 33 regulate which of the following?
A. Only subsoil drainage systems
B. Materials, design, construction, and installation of storm drainage
C. Residential roof water collection only
D. Sewage disposal systems
2. What is the minimum required diameter for subsoil drain pipes under Section P3302.1?
A. 2 inches
B. 3 inches
C. 4 inches
D. 6 inches
3. Where should subsoil drains discharge according to Section P3302.1?
A. Directly into the sanitary sewer system
B. Into a dry well, trapped area drain, sump, or approved location above ground
C. Below grade without any additional drainage system
D. Directly into the storm sewer without approval
4. Which of the following materials is not listed in Table P3302.1 as an approved subsoil drain pipe material?
A. Cast-iron pipe
B. Polyethylene (PE) plastic pipe
C. Copper pipe
D. Vitrified clay pipe
5. What is the minimum required depth for a sump pit under Section P3303.1.2?
A. 18 inches
B. 24 inches
C. 36 inches
D. 48 inches
6. According to Section P3303.1.2, sumps shall be constructed from which of the following materials?
A. Tile, steel, plastic, cast iron, concrete, or other approved materials
B. Only cast iron and plastic
C. PVC and steel only
D. Any available material without restrictions
7. What is the requirement for discharge piping under Section P3303.1.4?
A. It must be the same size as, or larger than, the pump discharge tapping
B. It must be no larger than 1 inch in diameter
C. It should be installed without a check valve
D. It must only be made of PVC
8. Which of the following applies to the electrical outlets used for sump pumps as per Section P3303.1.3?
A. They must comply with Chapters 34 through 43 of the IRC
B. They can be installed without GFCI protection
C. They should only be installed in wet locations
D. They can be connected to any available circuit
9. What is required to protect subsoil drains in areas subject to backwater conditions?
A. Installation of an accessibly located backwater valve
B. Use of larger drain pipes
C. Direct connection to the sewer system
D. No special requirements apply
10. According to Section P3303.1.1, what must the sump pump capacity and head be based on?
A. Standard manufacturer recommendations
B. Anticipated use requirements
C. The maximum water table depth
D. Local plumbing codes only