Plumbing Code Quiz

What is the minimum required slope per foot for horizontal drainage piping with a diameter of 3 inches according to the 2018 Uniform Plumbing Code?

• 1/8 inch per foot

• 1/4 inch per foot

• 1/2 inch per foot

• 1 inch per foot

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According to the 2018 Uniform Plumbing Code, what is the minimum number of plumbing fixtures required for a restaurant with an occupant load of 90 people?

• 2 water closets for women

• 3 water closets for women

• 4 water closets for women

• 5 water closets for women

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What is the maximum allowable water pressure (in psi) for plumbing fixtures in residential buildings as per the 2018 Uniform Plumbing Code?

• 60 psi

• 80 psi

• 100 psi

• 120 psi

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Under the 2018 Uniform Plumbing Code, which of the following materials is NOT approved for use in water supply piping?

• Copper

• Galvanized steel

• Lead

• PVC

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What is the required minimum diameter of a building sewer serving 30 fixture units according to the 2018 Uniform Plumbing Code?

• 3 inches

• 4 inches

• 6 inches

• 8 inches

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According to the 2018 Uniform Plumbing Code, what is the minimum required ventilation for a bathroom containing a water closet and a shower?

• 20 CFM intermittent or 5 CFM continuous

• 50 CFM intermittent or 20 CFM continuous

• 70 CFM intermittent or 25 CFM continuous

• 100 CFM intermittent or 50 CFM continuous

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In the 2018 Uniform Plumbing Code, what is the minimum required clearance in front of a water closet?

• 15 inches

• 18 inches

• 21 inches

• 24 inches

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Which of the following is a requirement for hot water systems according to the 2018 Uniform Plumbing Code?

• Water temperature must not exceed 140°F at the outlet.

• Water temperature must not exceed 120°F at the outlet.

• Water temperature must not exceed 100°F at the outlet.

• Water temperature must not exceed 160°F at the outlet.

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According to the 2018 Uniform Plumbing Code, how often should grease interceptors be cleaned?

• Monthly

• Quarterly

• Semi-annually

• Annually

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What is the minimum required size for a shower floor area as per the 2018 Uniform Plumbing Code?

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