Nicet Level 1 - Water Based Layout EXAM
Questions and Answers (Verified Answers)
(Latest Update 2026) UPDATE!!
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Terms in this set (64)
Toggle hangers shall be permitted 1 2/2 in. (ref. NFPA 13 2016 Sec. 9.2.1.1.2.
only for the support of pipe __________
inches or smaller in size under
ceilings of hollow tile or metal lath
and plaster.
While conducting a flow test, the As close to the property where the sprinkler
chosen hydrant should be ______ system is being installed. (Ref, NFPA 13 Sec.
A.24.2.2. or NFPA 291)
What formula is used to determine K = Q / (Square root of P)
the discharge coefficiant relating
pressure and flow rate?
What best describes a tree system? Cross mains and the branch lines are not tied
together, providing only one path of water flow.
,Factors that define Occupancy Quantity and combustibility of contents are
Group Hazard 2 include: moderate to high.
Stockpiles of contents with moderate rates of
heat release do not exceed 12 ft and stockpiles
with high heat release do not exceed 8 ft
(Ref NFPA 13 Sec. 5.3.2)
Which of the following standards NFPA 13 & 24 (Both in Chapter 10)
contain reqs. pertaining to the
installation of underground piping?
Which of the following should you The grounding prong & the insulation for nicks,
inspect on an extension cord cuts, or damage
before each use?
________ indicates a mandatory req. Shall.
according to NFPA definitions.
(Ref. NFPA 13 2016, Sec. 3.2.4.)
, 100 GPM is flowing through 100' of 1 Assume this is Schedule 40 pipe, C = 120. Use the
1/4 in. Sch. 40 pipe. How many feet Hazen-Williams formula to calculate the friction
of 1 1/2 in. pipe will produce the loss for the 1 ¼ in. pipe and the 1 ½ in. pipe.
same friction loss?
For 1 ¼ in. pipe (ID = 1.38):
P friction loss = 4.52 x Q 1.85
c 1.85 x d 4.87
P friction loss = 4.52 x 100 1.85
120 1.85 x 1.38 4.87
P friction loss = 0.672 psi/ft
For 1 ½ in. pipe (ID = 1.61):
P friction loss = 4.52 x Q 1.85
c 1.85 x d 4.87
P friction loss = 4.52 x 100 1.85
120 1.85 x 1.61 4.87
P friction loss = 0.317 psi/ft
Step #2: Determine the total friction loss for 100
gpm flowing through 100 ft. of 1 ¼ in. Schedule 40
black steel pipe: 100 ft. x 0.672 psi/ft = 67.2 psi
Questions and Answers (Verified Answers)
(Latest Update 2026) UPDATE!!
Save
Terms in this set (64)
Toggle hangers shall be permitted 1 2/2 in. (ref. NFPA 13 2016 Sec. 9.2.1.1.2.
only for the support of pipe __________
inches or smaller in size under
ceilings of hollow tile or metal lath
and plaster.
While conducting a flow test, the As close to the property where the sprinkler
chosen hydrant should be ______ system is being installed. (Ref, NFPA 13 Sec.
A.24.2.2. or NFPA 291)
What formula is used to determine K = Q / (Square root of P)
the discharge coefficiant relating
pressure and flow rate?
What best describes a tree system? Cross mains and the branch lines are not tied
together, providing only one path of water flow.
,Factors that define Occupancy Quantity and combustibility of contents are
Group Hazard 2 include: moderate to high.
Stockpiles of contents with moderate rates of
heat release do not exceed 12 ft and stockpiles
with high heat release do not exceed 8 ft
(Ref NFPA 13 Sec. 5.3.2)
Which of the following standards NFPA 13 & 24 (Both in Chapter 10)
contain reqs. pertaining to the
installation of underground piping?
Which of the following should you The grounding prong & the insulation for nicks,
inspect on an extension cord cuts, or damage
before each use?
________ indicates a mandatory req. Shall.
according to NFPA definitions.
(Ref. NFPA 13 2016, Sec. 3.2.4.)
, 100 GPM is flowing through 100' of 1 Assume this is Schedule 40 pipe, C = 120. Use the
1/4 in. Sch. 40 pipe. How many feet Hazen-Williams formula to calculate the friction
of 1 1/2 in. pipe will produce the loss for the 1 ¼ in. pipe and the 1 ½ in. pipe.
same friction loss?
For 1 ¼ in. pipe (ID = 1.38):
P friction loss = 4.52 x Q 1.85
c 1.85 x d 4.87
P friction loss = 4.52 x 100 1.85
120 1.85 x 1.38 4.87
P friction loss = 0.672 psi/ft
For 1 ½ in. pipe (ID = 1.61):
P friction loss = 4.52 x Q 1.85
c 1.85 x d 4.87
P friction loss = 4.52 x 100 1.85
120 1.85 x 1.61 4.87
P friction loss = 0.317 psi/ft
Step #2: Determine the total friction loss for 100
gpm flowing through 100 ft. of 1 ¼ in. Schedule 40
black steel pipe: 100 ft. x 0.672 psi/ft = 67.2 psi
