Term
, The Plumbing Code is used to:
A) enforce the law
B) confuse the plumber
C) explain why plumbinglinstallati6ns may vary
ID) explain why minor changes from the basic lies are acceptable |
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Definition
Answer: A Code response:
The provisions of the following chapters and sections shall constitute and be known and cited as the Code (law).
Note: Plumbing codes are laws adopted by local and state authorities. Violating any provision of these odes is considered a misdemeanor, punishable by a fine or imprisonment upon conviction. |
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Term
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) straight tee branch |
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Definition
". Answer:-D·
Code response: A straight tee branch shall not le used as a drainage fitting |
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Term
1-3 Accordingto the"-Code,the drainage system or any part thereof shall not be covered until:
(A) after a plumbing inspector has been called
B) it has been tested
(C) it has been inspected
(D) it has been approved |
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Definition
Answer: D
Code response: The plumbing system or any part thereof shall not be covered until approved. |
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Term
1·4 According to the Code, it shall' be the duty and responibility 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 |
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Definition
Answer: B
permit holder is responsible for all plumbing |
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Term
1-5 ,) Every plumbing fixture directly connected to the drainage system, according to the Code, shall:
(A)have an overflow
(B) be maintained in a sanitary manner
(C) have hot and cold water
(D) be equipped with a water-seal trap |
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Definition
Answer: D
Code response: Be equipped with a water-seal trap. |
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Term
1·6 According to the Code, drainage systems water-tested for tightness and for inspection shall be tested th no less than a _____ head of water,
(a) 6-foot ) 8-foot (C) lO-foot (D) 12-foot |
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Definition
| Answer: C Code response: No section shall be tested with 55 than a 10-foot head of water. |
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Term
1-7 According to the Code, when notching the ends of joists to install water piping, the depth of the otches shall not exceed ______of the depth of the joists.
(A) 1/16 (B) 1/32 (C) 1/8 {D) 1/4 |
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Definition
| Answer: D Code response: When notching the ends of joists, the depth shall not exceed 1/4 the depth of the joists. |
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Term
1-8 The Code requires that drainage fittings have threads that are tapped to allow for:
(A) full thread engagement
(B) grade
(C) simple adjustment
(D) pipe expansion |
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Definition
Answer: B
Code response: None. |
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Term
1-9 The Code requires that when a water service pipe is installed in the same trench with a building sewer, there must be a minimum separation of _ inches.
(A) 6
(B) 10
(C) 12
(D) 18 |
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Definition
Answer: C
Code response: The bottom of the water service pipe at all points, shall be at least 12 inches above the top of the sewer pipe. |
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Term
l.l0 The Code requires that sewage or other waste from a plumbing system be _____ before it is discharged to any waterway.
(A). discharged through a settling tank
(B) treated with Clorox
(C) rendered innocuous
(D) determined detrimental |
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Definition
Answer: C
Code response: Sewage or other waste must first be rendered innouous. |
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Term
1·11 According to the Plumbing Code, _ fixture unit(s) flow rate shall be deemed to be 1 cubic foot per minute.
(A) 1
(B) 2
(C) 3
(D) 4 |
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Definition
Answer: A
Code response: A fixture unit flow rate shall be leemed to be 1 cubic foot of water per minute. |
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Term
1-12 According to the Code, 2-inch copper tubing installed horizontally must be supported at distances not less than ____ feet.
(A) 4
(B) 6
(C) 8
(D) 10 |
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Definition
Answer: D
Code Responce Copper tubing shall be supported approximately 10-foot intervals for piping 2inches and larger. |
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Term
1·13 A single-family house, connected to a public sewer, may discharge all but one of the foUowing substances through· its drainage system without violating the Code:
(A) human excrement
(B) potable water
(C) fireplace ashes
(D) clothes washer water |
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Definition
Answer: C
Code response: No substance which will Clog the pipes shall be allowed to enter the Building drainage system. |
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Term
1-14 According to the Code, vertical ____ must be supported at the base and at each story level at intervals at exceeding 15 feet.
(A) cast-iron soil pipe
(B) threaded pipe
(C) copper tubing
(D) lead pipe |
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Definition
Answer: A
Code response: Cast-iron soil pipe shall be supported at the base and at each story level at intervals not exceeding 15 feet. |
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Term
1·15 All buildings intended for human habitation, according to Code, must:
(a) have an adequate supply of clear water
(B) be connected to a public sewer
(C) be maintained in a sanitary manner
(D) have an adequate supply of potable running Hater |
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Definition
nswer: 0
Code response: All buildings intended for human habitation shall be provided with an adequate, safe and potable water supply through a safe system of piping. |
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Term
1-16 According to Code, the ladder required by an inspector so that he can make a final inspection must _ ,e furnished by the:
(A) general contractor
(B) roofing contractor
(C) building and zoning department
(D) plumbing contractor |
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Definition
Answer: D
Code response: Equipment necessary for the inspection shall be furnished by the plumber. |
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Term
1-17 According to Code, pipe fittings that____ _ shall not be used in sanitary drainage plumbing systems.
(A) are metallic
(B) are nonmetallic
(C) increase in size
(D) have abnormal flow obstruction |
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Definition
Answer: D
Code response: Fittings that offer abnormal obstruction to flow shall not be used. |
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Term
1-18 A plumber requests an inspection and the work fails the test. According to Code, the plumber:
(A) has 10 days to make corrections
(B) shall make necessary corrections, then submit the work for inspection
(C) must make necessary corrections while the inspector waits
(D) may make the necessary corrections, then may resubmit the work for inspection |
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Definition
Answer: B
Code response: If the official finds that the work will not pass the test, the permit holder shall be
required to make necessary corrections, and the work
shall then be resubmitted for inspection. |
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Term
1-20 According to Code. the water service pipe supplying water for a two-bedroom one-bath house must be:
(A) installed in 20-foot lengths 'htlen possible
(B) buried at least 12 inches below grade
(C) no less than 3/4-inch I.D piping _
(D) no less than 3/4-inch 0.D piping |
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Definition
Answer: C
Code response: Water service lines shall in no case be less than 3/4-inch nominal diameter. |
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Term
1-21 According to Code, the horizontal distance X" must be a minimum of _______ feet. .
Sewer------------------------------Water service pipe
X
(A) 3
(B) 5
(C) 8
(D) 10 |
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Definition
Answer: B
Code response: Underground water service pipe and building sewer shall not be less than 5 feet part horizontally. |
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Term
1-22 In open-trench pipe installation, the Code requires a minimum of _____ inches of clean fill to be added love the top of piping before mechanical equipment is used for backfilling.
(A) 4
(B) 6
(C) 12
(D) 18 |
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Definition
Answer: C
Code response: Reasonably clean backfill shall be placed 12 inches over the pipe. |
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Term
1-23 In lieu of the water test, the Code will accept one of the following for a final test of a completed drainage and vent system:
(A) air
(B) gas mixture of oil of peppermint
(C) oxygen
(D) mercury vapor |
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Definition
Answer: A
Code response: The air test is an acceptable method for testing drainage and vent systems. |
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Term
1·24 According to Code, a single or double sanitary tee may be used in drainage lines where the direction of flow is from:
(A) horizontal to vertical
(B) horizontal to horizontal
(C) vertical to horizontal
(D) vertical to vertical |
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Definition
Answer: A
Code response: In drainage lines, a single or double sanitary tee may be used when the direcion of flow is from horizontal to vertical. |
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Term
1-25 One of the following fittings is not acceptable by Code for changes in direction in drainage piping:
(A) wye
(B) 1/5-bend
(e) long sweep 1/4-bend
(O) 1/6-bend |
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Definition
Answer: B
Code response: A 1/5-bend is not listed as an approved fitting for changes in direction in a drainage piping system. |
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Term
1-26 Whenever compliance with all the provisions of the Code fails to eliminate______ the owner or his agent has to make acceptable corrections.
(A) bad workmanship
(B) a drainage problem
(C) a nuisance
(D) uncertified workers from a job |
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Definition
Answer: C
Code response: Whenever compliance with all the provisions of this Code fails to eliminate or alleviate a nuisance ... |
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Term
1-27 According to Code, piping installed underground must be:
(a)Installed a minimum of 6 inches below grade
(B) nonmetallic to prevent corrosion
(C) graded to drain to low point .
(D) supported throughout its entire length |
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Definition
Answer: D
Code response: Buried piping shall be supported tnroughout its entire length. |
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Term
1-28 The plumber decides to water-test the drainage system in its entirety. According to Code, before the inspection starts, the water must be kept in the system for a minimum of______ minutes.
(A) 5
(B) 10
(C) 15
(D) 20 |
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Definition
Answer: C
Code response: The water shall be kept in the system for at least 15 minutes before inspection starts. |
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Term
1-29 The Code specifies that all trenching required for the installation of a plumbing system within the walls of a building be:
(A) not closer than 5 feet to a building foundation
(B) not deeper than 3 feet maximum
(C) covered immediately after installation for -safety of other workers
(D) open trench work |
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Definition
Answer: D
Code response: All excavation for installation building drainage system shall be open trench work. |
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Term
1·30 According to Code. no plumbing permit can be considered valid until:
(A) plans are approved by plumbing official
(B) prescribed fees are paid
(C) architect's seal is imprinted upon approved " plans
(D) permit is signed by qualifier ,. |
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Definition
Answer: B
Code response: No permit shall be valid until fees prescribed in this section shall have been paid. |
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Term
1-31 Spaces between piping, sleeves, walls and floors, according to Code, must be:
(A) provided with a minimum annular space of 1/2 inch
(B) provided with a vermin-proof cap
(C) filled or tightlv caulked
(D) filled to the top with fine sand |
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Definition
Answer: C
Code response: Annular spaces between sleeves and Pipes shall be filled or tightly caulked. |
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Term
1-32 According to Code, a 3-inch waste pipe passing through a foundation wall must be protected from ' xternalloadings or against differential settlement. A______-inch cast-iron sleeve built into the wall is cceptable for this purpose.
(A) 3 1/2
(B) 4
(C) 5
(D) 6 |
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Definition
Answer: B
Code response: A cast-iron sleeve two pipe sizes .. greater than the pipe passing through the wall is acceptable by Code. |
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Term
1-33 According to Code, vent piping shall not be drilled or tapped:
(A) unless approved by the Administrative Authority
(B) for the purpose of making connections thereto
(C) unless drilled opening is to be used for roof mounted A.C. condensate drain connection
(D) without prior approval by job architect |
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Definition
· Answer: A
Code response: Vent piping shall not be drilled or tapped, unless approved by the Administrative Authority. |
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Term
1-34 According to Code, a fitting having a hub in the direction opposite to flow in the drainage system:
(A) must not be used
(B) may be used if the pipe is cut by a saw
(C) may be used by special permission of the plumbing inspector
(D) may be used if drainage piping is above grade |
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Definition
Answer: B
Code response: Shall not be used, unless the pipe is cut by either a saw or snap cutter. |
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Term
1-35 Using the illustration in Figure 1-2, according to Code, the installation:
D /' ~~vnrl' |
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Definition
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Term
1-35 Using the illustration in Figure 1-2, according to Code, the installation:
(A) is permitted, if first approved by the Plumbing Official
(B) is permitted, if approved in writing by the job engineer
(C) is permitted, if the approved separation of 5 feet between pipes is maintained
(D) is not permitted, under any circumstances |
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Definition
Answer: D
Code response: Water service pipes shall not be run or laid in the same trench as the building sewer. |
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Term
1-36 The Code states that 3-inch PVC waste piping must not be installed in outside walls of a building:
(A) unless wall is a minimum of 6 inches in width
(B) if temperatures of geographical area ever exceed 100 degrees F.
(C) if temperatures of geographical area are ever lower than 32 degrees F.
(D) if wall is constructed of combustible material . |
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Definition
Answer: C
Code response: Waste piping shall not be installed in outside walls where they may be sub- jected to freezing temperature. |
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Term
1-38 According to Code, vent pipe penetration of roof surfaces must be:
(A) a minimum of 7 inches above adjacent roof
(B) a minimum of 8 feet from nearest window
(C) provided with increasers to prevent frost closure
(D) made watertight |
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Definition
Answer: D
Code response: Joints at the roof around vent pipes shall be made watertight. |
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Term
1-39 Plumbing fixtures, according to Code, cannot be located in such a manner:
(A) as to prevent their use by the physically handicapped
(B) as to prevent calculation of minimum fixture unit load in sizing drainage piping
(C) as to confuse the need for additional fixtures
(O) as to interfere with the normal operation of a door |
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Definition
Answer: D
Code response: Fixtures shall not be located in such a manner as to interfere with the normal operation of doors. . |
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Term
1-40 Pipe trench excavation deeper than and parallel to footings, according to Code, must not be placed within an angle of pressure as transferred from the base of the structure to the sides of the excavation. The piping must be _______ from the footings.
(A) 25 degrees
(B) 35degrees
(C) 45 degrees .
(D) 55 degrees |
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Definition
Answer: C
Code response: Piping installed deeper than and parallel to footings shall be 45 degrees therefrom. |
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Term
1·41 Having a unique plumbing installation, the plumber decides to test the system with air. According to Code, air must be forced into the system until there is a uniform gauge pressure of ___ pounds per square inch.
(A) 5
(B) 10
(C) 15
(D) 20 |
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Definition
Answer: A
Code response: The air test shall be made by forcing air into the system until there is a uniform gauge pressure of 5 pounds per square inch. |
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Term
1-42 The Code specifies that vertically installed piping must be secured at sufficiently close intervals to:
(A) carry the weight of the pipe
(B) carry the weight of the pipe and its contents
(C) prevent strains or stresses
(D) prevent sagging |
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Definition
AnSWer: B
Code response: Vertical piping shall be secured at sufficiently close intervals to carry the weight of the pipe and contents. |
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Term
ID 1·43 In accordance with Code, horizontally installed piping must be supported at sufficiently close , Intervals to:
(A) carry the weight of the pipe
(B) carry the weight of the pipe and its contents
(C) prevent strains or stresses
(D) prevent sagging |
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Definition
Answer: D
Code response: Horizontal piping shall be supported at sufficiently close intervals to prevent sagging. |
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Term
1-19 In existing buildings in which plumbing installations are to be renovated, the Code my permit the Work to be done:
(A) only in a workmanlike manner
[B) with necessary deviations, providing the intent of the Code is met
(C) if like materials are used for replacement
(O) without a permit |
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Definition
Answer: B
Code response: In existing buildings in which plumbing installations are to be renovated, deviations from the provisions of this Code may be permitted, providing such deviations conform to the intent of the Code. |
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Term
1-44 Code. 1-44 Code requires that all piping installed in in corrosive type material be:
(A) first approved by the Plumbing Official .
(B) suPPOrted properly
(C) protected properly . ,
(D) in accordance with manufacturer's recommendations |
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Definition
Answer: C
Code response: Pipes passing through or under Corrosive material shall be protected against external corrosion. |
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Term
1-45 Code requires that vertical galvanized steel piping be supported at not less than:
· A) 8-foot intervals
B) 10-foot intervals
C) every story height
D) every other story height |
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Definition
Answer: d
Code response: Threaded pipe shall be supported at not less than every other story. |
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Term
1-46 According to Code, bases of soil stacks must be supported:
(A) with concrete blocks
(B) by concrete piers
(C) to the satisfaction of the plumbing inspector
(d) to the satisfaction of the job engineer |
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Definition
Answer: C
:ode response: Bases of all soi/ stacks shall be supported to the satisfaction of the plumbing official. |
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Term
1-47 Codes requires that horizontally hung cast-iron soil pipe in 10-foot lengths have minimum spacing of Supports not more than _ feet apart.
(A) 5
(B) 8
(C) 10
(d) 12 |
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Definition
Answer: C
Code response: Horizontal cast-iron soil pipe shall be supported at not more than lO-foot intervals In 10-foot lengths. |
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Term
1-48 According to Code, a water test may be applied to the drainage and vent system of a two-story , residence:
(A) only in its entirety
(B) only in sections
(C) only during working hours
(D) in its entirety or in sections |
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Definition
Answer: D
Code response: The water test shall be applied to the drainage system in its entirety or in sections. |
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Term
1-49 To meet the Code, all sections of a plumbing drainage and vent system must be tested with:
(A) water
(B) mercury vapor
(C) air or water
(D) air |
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Definition
Answer: C
Code response: All sections of a plumbing drainage I and vent system must be tested with a water test Or by an air test. |
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Term
1-50 The air test for a plumbing drainage and vent system must, by Code, be MADE by attaching thE air compressor or other test apparatus to:
A) the lowest fixture outlet available
B) the highest vent opening
C) any suitable opening
D) a dishwasher waste opening |
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Definition
Answer: C
Code response: The air test for a plumbing drainage and vent system shall be made by attaching the air compressor or other test apparatus to any suitable opening. |
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Term
1-51 The Code specifies that a satisfactory hanger which supports any piping must be:
(A) of same material as piping
(B) accessible
(C) same size as pipe used
(D) of sufficient strength |
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Definition
Answer: D
Code response: A satisfactory hanger which supports any pipe must be of sufficient strength to maintain its proportionate share of the pipe alignment and to prevent sagging. |
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Term
1-52 The Code permits that a plumbing system installed before January 1, 1982, may be altered:
A) without complying with latest Code . requirements
(B) but, must comply with latest Code I requirements
(C) without obtaining a permit
(D) and Code requirements waived if work is less than 50 percent of the existing system |
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Definition
Answer: A
Code response: In existing buildings in which plumbing installations are to be altered, necessary deviations from the provisions of this Code may be permitted. |
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