Question 1

Which of the following venting methods is allowed by the IPC, but not by the UPC?&#10;A)circuit vent&#10;B)engineered vent systems&#10;C)wet vent, vertical&#10;D)waste stack

Accepted Answer

D

Question 2

A circuit vent is a vent connecting one or more individual vents with a vent stack or stack vent .

Accepted Answer

A circuit vent is a vent that serves two or more traps and extends from the front of the last fixture connection of a horizontal branch to the vent stack. It does not connect individual vents to a vent stack or stack vent.

Question 3

An air gap is an unobstructed vertical distance through the free atmosphere between the waste pipe outlet and the flood level rim of the receptacle into which the discharge is flowing.

Accepted Answer

An air gap is indeed defined as the unobstructed vertical distance through the free atmosphere between the outlet end of a waste pipe and the flood level rim of the receptacle (such as a sink, basin, or fixture) into which the waste or water is discharged. This prevents backflow or contamination from reaching the potable water supply.

Question 4

Proper placement and sizing of plumbing vents guard against a reduction of the trap seal .

Accepted Answer

Proper placement and sizing of plumbing vents are crucial because they prevent the siphoning of water from the trap, which maintains the trap seal and prevents sewer gases from entering the building.

Question 5

What is developed length?&#10;A)the length of a full trap before air could pass through the trap&#10;B)the highest edge of the receptacle from which water or waste flows into&#10;C)vertical distance between the weir and the top of the dip or trap&#10;D)the length of a pipeline measured along the centerline of the pipe and fittings

Accepted Answer

Developed length refers to the total length of a pipeline, including all its fittings and components, measured along the centerline of the pipe. This concept is important in plumbing and piping design to calculate pressure losses and ensure proper flow dynamics.

Question 6

Which term below is best described as a vent connected at the junction of two fixture drains and serving as a vent for both fixtures?&#10;A)continuous vent&#10;B)common vent&#10;C)dry vent&#10;D)individual vent

Accepted Answer

A common vent serves two fixtures that are located on the same level and connects at the junction of their fixture drains, acting as a vent for both.

Question 7

Which of the following is a group of two or more similar adjacent fixtures that discharge into a common horizontal waste or soil branch?&#10;A)battery of fixtures&#10;B)branch interval&#10;C)combination waste and vent system&#10;D)circuit vent

Accepted Answer

A battery of fixtures refers to two or more similar adjacent fixtures that discharge into a common horizontal waste or soil branch. This setup allows for efficient plumbing configurations, especially in commercial or multi-unit residential buildings.

Question 8

Which type of vent is one from pneumatic sewage ejectors, or similar equipment, which terminates separately to the open air?&#10;A)vent stack&#10;B)sump vent&#10;C)circuit vent&#10;D)relief vent

Accepted Answer

Sump vents are specifically designed for pneumatic sewage ejectors or similar equipment, providing a separate termination to the open air to ensure proper ventilation and prevent negative pressure or vacuum conditions in the system.

Question 9

According to code, drainage stacks are to be provided with a relief vent for the purpose of relieving pressure surges from tall stacks once a building reaches how many stories?&#10;A)15&#10;B)10&#10;C)5&#10;D)20

Accepted Answer

According to plumbing codes, a relief vent should be added to drainage stacks in buildings that are 10 stories or higher. This is to prevent pressure surges that can occur in tall stacks, ensuring the proper function of the drainage system.

Question 10

Which of the following is a vertical vent pipe installed to provide for the circulation of air to and from the drainage system?&#10;A)trap arm&#10;B)stack venting&#10;C)pressure valves&#10;D)vent stack

Accepted Answer

A vent stack is specifically designed to provide the circulation of air to and from a building's drainage system, ensuring proper ventilation and preventing negative pressure from hindering water flow.

Question 11

Which of the following is a one-way check valve that allows air to flow into the piping system without letting any of the sewer gasses leave the DWV system?&#10;A)air break&#10;B)air gap&#10;C)AAV&#10;D)dry vent

Accepted Answer

The answer of Which of the following is a one-way...

Question 12

What kind of venting is used for single waste fixtures where the conventional vertical rise of a vent is impractical?&#10;A)island fixture venting&#10;B)horizontal wet venting&#10;C)circuit venting&#10;D)dry venting

Accepted Answer

The answer of What kind of venting is used for...

Question 13

What is a drain pipe extending laterally from a soil or waste stack or building drain which receives discharge from one or more fixture drains?&#10;A)horizontal branch&#10;B)flood level rim&#10;C)condensate drain&#10;D)stump drain

Accepted Answer

The answer of What is a drain pipe extending laterally...

Question 14

Which of the following is best described as a vent that does not receive the discharge of any sewage or waste?&#10;A)circuit vent&#10;B)individual vent&#10;C)dry vent&#10;D)relief vent

Accepted Answer

The answer of Which of the following is best described...

Question 15

Which of the following venting methods is allowed by the UPC, but not the IPC:&#10;A)combination drain and vent system&#10;B)suds pressure&#10;C)individual vent&#10;D)wet vent, horizontal

Accepted Answer

The answer of Which of the following venting methods is...

Deck 19: Plumbing Codes: Vents