Plumbing

2-33 According to Code, the distance "X" across the 4-inch pipe shown in Figure 2-3 is defined as the:

• (A) circumference

• (B) diameter ☑

• (C) cross-section

• (D) area

Answer explanation

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Standard Plumbing Code

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Answer: B

Code response: The term "diameter" is the

nominal diameter as designated commercialy.

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Uniform Plumbing Code

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Answer: B

Code response: The term "diameter" is the nominal

diameter as designated commercially.

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Note: Neither Code specifically defines "diameter." The universal source, a dictionary, defines the term

diameter" as a straight line that passes through the center of a circle and divides it in half.

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2-34 In Figure 2-4, the Code defines pipe "A" as:

• (A) waste pipe

• (B) fixture branch

• (C) continuous waste

• (D) horizontal branch ☑

Answer explanation

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Standard Plumbing Code

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Answer: D

Code response: A horizontal branch is a drain pipe extending laterally from a soil or waste stack, which receives the discharge from one or more fixture drains and conducts it to the soil or waste stack.

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Uniform Plumbing Code

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Answer: D

Code response: A horizontal branch is a drain pipe extending laterally from a soil or waste stack, which receives the discharge from one or more fixture drains and conducts it to the soil or waste stack.

2-35 In Figure 2-4, the Code defines pipe "B" as a:

• (A) combined vent

• (B) circuit vent ☑

• (C) relief vent

• (D) common vent

Answer explanation

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Standerd Plumbing Code

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Answer: B

Code response: A circuit vent is a branch vent

that serves two or more traps and extends from

in front of the last fixture connection of a

horizontal branch to the vent stack.

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Uniform Plumbing Code

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Answer: B

Code response: A circuit vent is a branch vent that

serves two or more traps and extends from in front of the last fixture connection of a horizotal branch to the vent stack.

2-36 In Figure 2-4, the Code defines pipe "C" as a:

• (A) soil pipe

• (B) waste pipe

• (C) soil stack ☑

• (D) waste stack

Answer explanation

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Standard Plumbing Code

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Answer: C

Code response: A stack is the vertical main of

a systen of soil, waste, or vent piping.

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Uniform Plumbing Code

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Answer: C

Code response: A stack is the vertical main of a

system of soil, waste, or vent piping extending

one or more stories in height.

2-37 The Code defines pipe "D" in Figure 2-4 as a:

• (A) vent stack ☑

• (B) stack vent

• (C) revent pipe

• (D) dry vent

Answer explanation

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Standard Plumbing Code

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Answer: A

Code response: A vent stack is a vertical vent

pipe installed to provide circulation of air to and

from a drainage systerm.

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Uniform Plumbing Code

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Answer: A

Code response: A vent stack is a vertical vent pipe

installed to provide circulation of air to and from

a discharge system.

2-38 The Code defines pipe "E" in Figure 2-4 as a:

• (A) vertical to a horizontal vent pipe

• (B) relief or revent pipe ☑

• (C) main or secondary vent pipe

• (D) individual or group vent pipe

Answer explanation

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Standard Plumbing Code

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Answer: B

Code response: A revent pipe is that part of a

vent pipe line which connects directly with individual or a group of wastes and extends to the main or branch vent pipe.

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Uniform Plumbing Code

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Answer: B

Code reponse: A relief vent is a vent, the primary

function of which is to act as an auxiliary vent on

a specially designed system.

1-1 The Plumbing Code is used to:

• (A) enforce the law ☑

• (B) confuse the plumber

• (C) explain why plumbing installations may vary

• (D) explain why minor changes from the basic rules are acceptable

Answer explanation

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Standard Plumbing Code

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Answer: A

Code response: The provisions of the following chapters and sections shall constitute and be known and cited as the Code (law).

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Uniform Plumbing Code

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Answer: A

Code response: This ordinance shall be known as the Code (law).

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Note: Plumbing codes are laws adopted by local and state authorities. Violating any provision of these codes is considered a misdemeanor, punishable by a fine or imprisonment upon conviction.

1-2 According to the Code, one of the following shall not be used in a drainage system:

• (A) a 3-inch short sweep

• (B) a fitting having 60-degree branches

• (C) a double sanitary tee

• (D) a straight tee branch ☑

Answer explanation

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Standard Plumbing Code

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Answer: D

Code response: A straight tee branch shall not be used as a drainage fitting.

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Uniform Plumbing Code

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Answer: D

Code response: No tee branch shall be used as a drainage fitting.

1-3 According to the Code, the drainage system or any part thereof shall not be covered untill:

• (A) after a plumbing inspector has been called

• (B) it has been tested

• (C) it has been inspected

• (D) it has been approved ☑

Answer explanation

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Standard Plumbing Code

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Answer: D

Code response: The plumbing system or any part

thereof shall not be covered until approved.

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Uniform Plumbing Code

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Answer: D

Code response: No plumbing or drainage system

or part thereof shall be covered until it has been

accepted

1-4 According to the Code, it shall be the duty and responsibility of the ____ to determine if the plumbing

has been inspected before it is covered or concealed.

• (A) general contractor

• (B) permit holder ☑

• (C) plumbing inspector

• (D) building and zoning record control branch

Answer explanation

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Standard Plumbing Code

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Answer: B

Code response: Permit holder is responsible for

all plumbing work installed.

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Uniform Plumbing Code

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Answer: B

Code response: Permit holder is responsible for

work pertormed.