Nicet Level 1 - Water Based Layout
Final Exam and All Actual Answers.
Toggle hangers shall be permitted only for the support of pipe __________ inches or smaller in
size under ceilings of hollow tile or metal lath and plaster. - Answer 1 2/2 in. (ref. NFPA 13
2016 Sec. 9.2.1.1.2.
While conducting a flow test, the chosen hydrant should be ______ - Answer As close to the
property where the sprinkler system is being installed. (Ref, NFPA 13 Sec. A.24.2.2. or NFPA 291)
What formula is used to determine the discharge coefficient relating pressure and flow rate? -
Answer K = Q / (Square root of P)
What best describes a tree system? - Answer Cross mains and the branch lines are not tied
together, providing only one path of water flow.
Factors that define Occupancy Group Hazard 2 include: - Answer Quantity and combustibility
of contents are 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 contain reqs. pertaining to the installation of underground
piping? - Answer NFPA 13 & 24 (Both in Chapter 10)
Which of the following should you inspect on an extension cord before each use? - Answer
The grounding prong & the insulation for nicks, cuts, or damage
________ indicates a mandatory req. according to NFPA definitions. - Answer Shall.
(Ref. NFPA 13 2016, Sec. 3.2.4.)
, 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
Final Exam and All Actual Answers.
Toggle hangers shall be permitted only for the support of pipe __________ inches or smaller in
size under ceilings of hollow tile or metal lath and plaster. - Answer 1 2/2 in. (ref. NFPA 13
2016 Sec. 9.2.1.1.2.
While conducting a flow test, the chosen hydrant should be ______ - Answer As close to the
property where the sprinkler system is being installed. (Ref, NFPA 13 Sec. A.24.2.2. or NFPA 291)
What formula is used to determine the discharge coefficient relating pressure and flow rate? -
Answer K = Q / (Square root of P)
What best describes a tree system? - Answer Cross mains and the branch lines are not tied
together, providing only one path of water flow.
Factors that define Occupancy Group Hazard 2 include: - Answer Quantity and combustibility
of contents are 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 contain reqs. pertaining to the installation of underground
piping? - Answer NFPA 13 & 24 (Both in Chapter 10)
Which of the following should you inspect on an extension cord before each use? - Answer
The grounding prong & the insulation for nicks, cuts, or damage
________ indicates a mandatory req. according to NFPA definitions. - Answer Shall.
(Ref. NFPA 13 2016, Sec. 3.2.4.)
, 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
