ICC IPC Questions and Answers | Latest
Version | 2024/2025 | Graded A+
What is the purpose of the International Plumbing Code (IPC)?
✔✔ The purpose of the IPC is to establish minimum regulations for plumbing systems to ensure
public health, safety, and welfare.
How are plumbing fixtures defined in the IPC?
✔✔ Plumbing fixtures are defined as devices that receive water and waste and are designed for
use with the plumbing system, such as sinks, toilets, and showers.
What is the role of the plumbing vent system according to the IPC?
✔✔ The plumbing vent system allows for the equalization of pressure in the drainage system and
prevents the siphoning of trap seals, ensuring proper drainage.
How does the IPC address the installation of backflow prevention devices?
✔✔ The IPC requires the installation of backflow prevention devices to protect the potable water
supply from contamination due to backflow.
1
, What is the minimum slope for drainage pipes as specified by the IPC?
✔✔ The IPC specifies a minimum slope of 1/4 inch per foot for pipes 2 inches in diameter and
larger, and 1/8 inch per foot for pipes smaller than 2 inches.
How does the IPC regulate water supply systems in buildings?
✔✔ The IPC establishes requirements for the design, installation, and maintenance of water
supply systems to ensure adequate pressure, flow, and quality.
What is the significance of trap seals in plumbing systems?
✔✔ Trap seals prevent sewer gases from entering buildings by maintaining a water barrier in the
trap of plumbing fixtures.
How does the IPC define a sanitary drainage system?
✔✔ A sanitary drainage system is defined as a system that conveys waste and wastewater to a
treatment facility or disposal point.
What are the requirements for plumbing materials according to the IPC?
✔✔ The IPC requires that plumbing materials comply with specific standards for durability,
safety, and performance as established by recognized organizations.
2
Version | 2024/2025 | Graded A+
What is the purpose of the International Plumbing Code (IPC)?
✔✔ The purpose of the IPC is to establish minimum regulations for plumbing systems to ensure
public health, safety, and welfare.
How are plumbing fixtures defined in the IPC?
✔✔ Plumbing fixtures are defined as devices that receive water and waste and are designed for
use with the plumbing system, such as sinks, toilets, and showers.
What is the role of the plumbing vent system according to the IPC?
✔✔ The plumbing vent system allows for the equalization of pressure in the drainage system and
prevents the siphoning of trap seals, ensuring proper drainage.
How does the IPC address the installation of backflow prevention devices?
✔✔ The IPC requires the installation of backflow prevention devices to protect the potable water
supply from contamination due to backflow.
1
, What is the minimum slope for drainage pipes as specified by the IPC?
✔✔ The IPC specifies a minimum slope of 1/4 inch per foot for pipes 2 inches in diameter and
larger, and 1/8 inch per foot for pipes smaller than 2 inches.
How does the IPC regulate water supply systems in buildings?
✔✔ The IPC establishes requirements for the design, installation, and maintenance of water
supply systems to ensure adequate pressure, flow, and quality.
What is the significance of trap seals in plumbing systems?
✔✔ Trap seals prevent sewer gases from entering buildings by maintaining a water barrier in the
trap of plumbing fixtures.
How does the IPC define a sanitary drainage system?
✔✔ A sanitary drainage system is defined as a system that conveys waste and wastewater to a
treatment facility or disposal point.
What are the requirements for plumbing materials according to the IPC?
✔✔ The IPC requires that plumbing materials comply with specific standards for durability,
safety, and performance as established by recognized organizations.
2
