Plumbing Test 1 of 27
A 3" water main is standing full of water after a pressure B
test. The guage ready at the base is:
A. 23.1 psi 42' x .433 = 18.19
B. 28.19 psi
C. 42 psi
D. 18.05 psi
ASSUME the main is standing with 42' of head.
.43 PSI = How many Feet of Head? A
A. 1
B. 2.31
C. 4.4
D. 43
According to Table G109.1.2(1) in the IPC, a 1' long semi C
rigid connector of 3/8" OD can carry ___ Btuh.
A. 25,000
B. 35,000
C. 40,000
D. 50,000
2/5/2026 1
,Plumbing Test 2 of 27
According to the International Plumbing Code, copper D
piping may be installed in wood studs, joists and rafters by
using all of the following penetration methods except:
A. notch 1 1/2" deep
B. bored hole no closer than 1 1/2" from edge
C. bored hole 1 1/4" from the edge with a 1/16" steel
protective shield
D. notch of 1 1/4" deep
According to the International Plumbing Code, no C
underfloor cleanout in any residential occupancy shall be
located more than ___ from an access door, trap door, or Although the Code does not directly address this distance 20' is the recommended
crawl hole. distance.
A. 30'
B. 25'
C. 20'
D. 35'
According to the International Plumbing Code, the A
horizontal wet venting of sinks or floor drains by means of a
common waste and vent pipe, adequately sized to provide
free movement of air above the flow line is __.
A. combination waste and vent system
B. wet drain section
C. wet vent section
D. combination drain section
2/5/2026 2
, Plumbing Test 3 of 27
According to the International Plumbing Code, the B
maximum trap loading for a 2" trap is ___ DFU.
A. 2
B. 3
C. 4
D. 5
According to the International Plumbing Code, when plastic D
piping is installed in a concealed location and passing
through a stud joist or rafter, the piping may not pass any
closer than ___ inches from the edge of the wood member.
A. 3/4
B. 1
C. 1 1/4
D. 1 1/2
According to the IPC, a 120' length black malleable pipe B
carrying 46,000 Btuh of gas demand shall have ___ threads
cut on the pipe at each fitting or joint.
A. 8
B. 10
C. 12
D. 13
2/5/2026 3
A 3" water main is standing full of water after a pressure B
test. The guage ready at the base is:
A. 23.1 psi 42' x .433 = 18.19
B. 28.19 psi
C. 42 psi
D. 18.05 psi
ASSUME the main is standing with 42' of head.
.43 PSI = How many Feet of Head? A
A. 1
B. 2.31
C. 4.4
D. 43
According to Table G109.1.2(1) in the IPC, a 1' long semi C
rigid connector of 3/8" OD can carry ___ Btuh.
A. 25,000
B. 35,000
C. 40,000
D. 50,000
2/5/2026 1
,Plumbing Test 2 of 27
According to the International Plumbing Code, copper D
piping may be installed in wood studs, joists and rafters by
using all of the following penetration methods except:
A. notch 1 1/2" deep
B. bored hole no closer than 1 1/2" from edge
C. bored hole 1 1/4" from the edge with a 1/16" steel
protective shield
D. notch of 1 1/4" deep
According to the International Plumbing Code, no C
underfloor cleanout in any residential occupancy shall be
located more than ___ from an access door, trap door, or Although the Code does not directly address this distance 20' is the recommended
crawl hole. distance.
A. 30'
B. 25'
C. 20'
D. 35'
According to the International Plumbing Code, the A
horizontal wet venting of sinks or floor drains by means of a
common waste and vent pipe, adequately sized to provide
free movement of air above the flow line is __.
A. combination waste and vent system
B. wet drain section
C. wet vent section
D. combination drain section
2/5/2026 2
, Plumbing Test 3 of 27
According to the International Plumbing Code, the B
maximum trap loading for a 2" trap is ___ DFU.
A. 2
B. 3
C. 4
D. 5
According to the International Plumbing Code, when plastic D
piping is installed in a concealed location and passing
through a stud joist or rafter, the piping may not pass any
closer than ___ inches from the edge of the wood member.
A. 3/4
B. 1
C. 1 1/4
D. 1 1/2
According to the IPC, a 120' length black malleable pipe B
carrying 46,000 Btuh of gas demand shall have ___ threads
cut on the pipe at each fitting or joint.
A. 8
B. 10
C. 12
D. 13
2/5/2026 3
