Plumbing Code Basics Quiz

What is the minimum number of water closets required in a dwelling unit according to plumbing fixture requirements?

• No water closets required

• 2 water closets per dwelling unit

• Depends on local plumbing codes

• 1 water closet per bedroom

How many lavatories are required in a dwelling unit as per plumbing fixture requirements?

• At least five

• At least three

• None are required

• At least one

What is the minimum size of a vent pipe for a bathroom group according to plumbing fixture requirements?

• 2 inches

• 3 inches

• 1 inch

• 1.5 inches

What are the commonly used materials for water supply pipes?

• Copper, PVC, PEX

• Rubber, Silicone, Nylon

• Wood, Concrete, Glass

• Steel, Aluminum, Brass

What is the recommended pipe size for a kitchen sink drain?

• 2 inches

• 3/4 inch

• 4 inches

• 1 1/2 inches

What type of material is commonly used for vent pipes?

• Aluminum

• Wood

• Rubber

• PVC

What is the minimum slope required for a horizontal drainage pipe according to drainage and waste disposal regulations?

• 1/2 inch per foot (4% slope)

• 1/4 inch per foot (2% slope)

• 1/8 inch per foot (1% slope)

• 1 inch per foot (8% slope)

What is the maximum distance a fixture trap can be located from the vent according to venting systems regulations?

• 6 feet

• 10 feet

• 15 feet

• 3 feet

What is the minimum size of a pipe for a shower drain according to plumbing fixture requirements?

• 1 inch

• 1.5 inches

• 2 inches

• 2.5 inches

What is the minimum size of a pipe for a bathtub drain according to plumbing fixture requirements?

• 1.5 inches

• 2 inches

• 2.5 inches

• 3 inches