A commercial building is being designed with a plumbing system. The building is located in a seismic zone. What is the minimum required pressure in the water supply system according to the 2021 IBC?

ICC B2 exam practice question · Building Planning

A commercial building is being designed with a plumbing system. The building is located in a seismic zone. What is the minimum required pressure in the water supply system according to the 2021 IBC?

A20 psi
B30 psi
C40 psi
50 psi

Exam tip

Be aware of the specific pressure requirements for plumbing systems in seismic zones.

Why D is correct

Section 403.1.1 of the 2021 IBC specifies that the minimum required pressure in the water supply system for buildings in seismic zones is 50 psi. Options A, B, and C are incorrect as they do not meet the minimum pressure requirement.

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A commercial building is being designed with a plumbing system. The building is located in a seismic zone. What is the minimum required pressure in the water supply system according to the 2021 IBC?

A commercial building is being designed with a plumbing system. The building is located in a seismic zone. What is the minimum required pressure in the water supply system according to the 2021 IBC?

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