NC Plumbing I State Exam Review Questions with Correct Answers 100% Verified By Experts|
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Water or air pressure tests on piping systems must be held for not less than _____ minutes.
a. 15
b. 30
c. 10
d. 20 A (P312.2-312.8)
Where water supply systems other than plastic are tested with air, the test pressure shall not
be less than _____ psi.
a. 10
b. 20
c. 30
d. 50 D (P312.5)
Horizontal 6-inch PVC drainage piping installed above ground requires _____ at a 45-degree
change in direction.
a. support
b. sway bracing
c. restraint
d. expansion fittings C (P308.7.1)
One inch cross-linked polyethylene (PEX) piping installed horizontally requires hangers at
intervals not greater than _____ inches.
a. 48
b. 36
c. 32
d. 24 C (P308.5)
,The building sewer requires testing under not less than a _____ -foot head of water.
a. 10
b. 12
c. 15
d. 8 A (P312.6)
For other than prefabricated shower bases, a water test at least _____ inch(es) deep at the
threshold is required for shower liners.
a. 4
b. 3
c. 2
d. 1 C (P312.9)
A business occupancy is permitted to have a maximum occupant load of _____ without
requiring installation of a drinking fountain.
a. 10
b. 15
c. 25
d. 99 B (P410.2)
A building classified as a business occupancy, with a total occupant load of 320, is required to
have a minimum of _____ lavatories in the women's restroom.
a. 2
b. 3
c. 4
d. 5 B (P403.1)
, An indoor sports arena with a total occupant load of 5,440 requires at least _____ water closets
in the women's restrooms.
a. 103
b. 68
c. 58
d. 46 C (P403.1)
An indoor sports arena with a total occupant load of 5,440 requires at least _____ lavatories in
the women's restrooms.
a. 14
b. 27
c. 19
d. 37 C (P403.1)
For an employee toilet room, the required lavatory shall be _____ the required water closet.
a. not more than 30 inches from
b. separated by a partition from
c. not less than 60 inches away from
d. in the same room as D (P405.3.2)
The fixture drain of an automatic clothes washer shall connect to a minimum ____ -inch branch
drain.
a. 1 1/2
b. 2
c. 2 1/2
d. 3 D (P406.2)
The waistline of an automatic clothes washer shall discharge through a(n) _____.
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Water or air pressure tests on piping systems must be held for not less than _____ minutes.
a. 15
b. 30
c. 10
d. 20 A (P312.2-312.8)
Where water supply systems other than plastic are tested with air, the test pressure shall not
be less than _____ psi.
a. 10
b. 20
c. 30
d. 50 D (P312.5)
Horizontal 6-inch PVC drainage piping installed above ground requires _____ at a 45-degree
change in direction.
a. support
b. sway bracing
c. restraint
d. expansion fittings C (P308.7.1)
One inch cross-linked polyethylene (PEX) piping installed horizontally requires hangers at
intervals not greater than _____ inches.
a. 48
b. 36
c. 32
d. 24 C (P308.5)
,The building sewer requires testing under not less than a _____ -foot head of water.
a. 10
b. 12
c. 15
d. 8 A (P312.6)
For other than prefabricated shower bases, a water test at least _____ inch(es) deep at the
threshold is required for shower liners.
a. 4
b. 3
c. 2
d. 1 C (P312.9)
A business occupancy is permitted to have a maximum occupant load of _____ without
requiring installation of a drinking fountain.
a. 10
b. 15
c. 25
d. 99 B (P410.2)
A building classified as a business occupancy, with a total occupant load of 320, is required to
have a minimum of _____ lavatories in the women's restroom.
a. 2
b. 3
c. 4
d. 5 B (P403.1)
, An indoor sports arena with a total occupant load of 5,440 requires at least _____ water closets
in the women's restrooms.
a. 103
b. 68
c. 58
d. 46 C (P403.1)
An indoor sports arena with a total occupant load of 5,440 requires at least _____ lavatories in
the women's restrooms.
a. 14
b. 27
c. 19
d. 37 C (P403.1)
For an employee toilet room, the required lavatory shall be _____ the required water closet.
a. not more than 30 inches from
b. separated by a partition from
c. not less than 60 inches away from
d. in the same room as D (P405.3.2)
The fixture drain of an automatic clothes washer shall connect to a minimum ____ -inch branch
drain.
a. 1 1/2
b. 2
c. 2 1/2
d. 3 D (P406.2)
The waistline of an automatic clothes washer shall discharge through a(n) _____.
