, Question 1
Under Utah Administrative Code R156-55c, a licensed automatic fire
suppression systems contractor is required to maintain a surety bond. Which
statement accurately describes the bond and insurance requirements for this
license classification?
A. A $10,000 surety bond and $100,000 general liability insurance are
required, with proof filed with DOPL before license activation.
B. A $5,000 surety bond and $250,000 general liability insurance are
required, with proof filed with DOPL before license activation.
C. A $10,000 surety bond and $500,000 general liability insurance are
required, but proof may be filed within 30 days after license activation.
D. A $20,000 surety bond and $1,000,000 general liability insurance are
required, with proof filed with DOPL before license activation.
Correct Answer: B - A $5,000 surety bond and $250,000 general
liability insurance are required, with proof filed with DOPL
before license activation.
RATIONALE
Utah DOPL requires a $5,000 surety bond and $250,000 general
liability insurance for automatic fire suppression system contractors,
with proof submitted prior to licensure. Higher bond/insurance
amounts or delayed filing do not comply with R156-55c.
Question 2
During a hydraulic calculation for a new NFPA 13 light hazard system, the
most remote sprinkler requires 15 gpm at 7 psi. The piping consists of 1-inch
Schedule 40 steel (C=120) with 100 ft of pipe and three 90° elbows. Using the
Hazen-Williams formula, what is the friction loss in psi for this pipe segment?
A. 1.8 psi
B. 2.5 psi
C. 3.2 psi
Page 2
, D. 4.1 psi
Correct Answer: B - 2.5 psi
RATIONALE
Using Hazen-Williams: P = 4.52 * Q^1.85 / (C^1.85 * d^4.87) * L.
With Q=15 gpm, C=120, d=1.049 in, L=100 ft plus equivalent length
for three elbows (approx. 15 ft total), the calculated loss is
approximately 2.5 psi. Other values result from incorrect C-factor or
equivalent length assumptions.
Question 3
A dry-pipe sprinkler system in an unheated warehouse is being commissioned.
According to NFPA 13, which valve configuration and auxiliary components
are required to ensure proper operation and drainage?
A. A dry-pipe valve with a quick-opening device, an air pressure
maintenance device, and a low-point drain on the system side.
B. A deluge valve with a heat detection system and a manual pull station
at the riser.
C. A preaction valve with a single interlock and a high-air-pressure alarm
switch.
D. A dry-pipe valve with a pressure-reducing valve and a flow switch on
the main drain.
Correct Answer: A - A dry-pipe valve with a quick-opening
device, an air pressure maintenance device, and a low-point drain
on the system side.
RATIONALE
NFPA 13 mandates dry-pipe valves with quick-opening devices
(accelerators or exhausters), air pressure maintenance, and low-point
drains to facilitate drainage and rapid water delivery. Deluge and
preaction valves serve different system types.
Page 3
, Question 4
A water supply test for a fire sprinkler system yields a static pressure of 80 psi
and a residual pressure of 60 psi at a flow of 1000 gpm. The system demand is
850 gpm at 50 psi. Is the water supply adequate, and what is the available
pressure at the system demand point?
A. Adequate; available pressure at 850 gpm is approximately 62 psi.
B. Adequate; available pressure at 850 gpm is approximately 55 psi.
C. Inadequate; available pressure at 850 gpm is approximately 48 psi.
D. Inadequate; available pressure at 850 gpm is approximately 45 psi.
Correct Answer: B - Adequate; available pressure at 850 gpm is
approximately 55 psi.
RATIONALE
Using the N^1.85 relationship, the available pressure at 850 gpm is
calculated by interpolating between the test points. The supply curve
yields approximately 55 psi at 850 gpm, which exceeds the 50 psi
demand, confirming adequacy. Other values reflect incorrect curve
fitting.
Question 5
An existing NFPA 25 inspection reveals that a sprinkler head in a corrosive
environment has been painted. What is the correct action per NFPA 25, and
what is the underlying rationale?
A. The sprinkler must be replaced immediately because paint can insulate
the heat-responsive element and alter activation time.
B. The sprinkler may remain if the paint is not on the fusible link, as only
the link affects activation.
C. The sprinkler can be cleaned with solvent and returned to service if the
paint is water-based.
D. The sprinkler must be replaced only if the paint is more than 0.1 inch
thick.
Page 4
Under Utah Administrative Code R156-55c, a licensed automatic fire
suppression systems contractor is required to maintain a surety bond. Which
statement accurately describes the bond and insurance requirements for this
license classification?
A. A $10,000 surety bond and $100,000 general liability insurance are
required, with proof filed with DOPL before license activation.
B. A $5,000 surety bond and $250,000 general liability insurance are
required, with proof filed with DOPL before license activation.
C. A $10,000 surety bond and $500,000 general liability insurance are
required, but proof may be filed within 30 days after license activation.
D. A $20,000 surety bond and $1,000,000 general liability insurance are
required, with proof filed with DOPL before license activation.
Correct Answer: B - A $5,000 surety bond and $250,000 general
liability insurance are required, with proof filed with DOPL
before license activation.
RATIONALE
Utah DOPL requires a $5,000 surety bond and $250,000 general
liability insurance for automatic fire suppression system contractors,
with proof submitted prior to licensure. Higher bond/insurance
amounts or delayed filing do not comply with R156-55c.
Question 2
During a hydraulic calculation for a new NFPA 13 light hazard system, the
most remote sprinkler requires 15 gpm at 7 psi. The piping consists of 1-inch
Schedule 40 steel (C=120) with 100 ft of pipe and three 90° elbows. Using the
Hazen-Williams formula, what is the friction loss in psi for this pipe segment?
A. 1.8 psi
B. 2.5 psi
C. 3.2 psi
Page 2
, D. 4.1 psi
Correct Answer: B - 2.5 psi
RATIONALE
Using Hazen-Williams: P = 4.52 * Q^1.85 / (C^1.85 * d^4.87) * L.
With Q=15 gpm, C=120, d=1.049 in, L=100 ft plus equivalent length
for three elbows (approx. 15 ft total), the calculated loss is
approximately 2.5 psi. Other values result from incorrect C-factor or
equivalent length assumptions.
Question 3
A dry-pipe sprinkler system in an unheated warehouse is being commissioned.
According to NFPA 13, which valve configuration and auxiliary components
are required to ensure proper operation and drainage?
A. A dry-pipe valve with a quick-opening device, an air pressure
maintenance device, and a low-point drain on the system side.
B. A deluge valve with a heat detection system and a manual pull station
at the riser.
C. A preaction valve with a single interlock and a high-air-pressure alarm
switch.
D. A dry-pipe valve with a pressure-reducing valve and a flow switch on
the main drain.
Correct Answer: A - A dry-pipe valve with a quick-opening
device, an air pressure maintenance device, and a low-point drain
on the system side.
RATIONALE
NFPA 13 mandates dry-pipe valves with quick-opening devices
(accelerators or exhausters), air pressure maintenance, and low-point
drains to facilitate drainage and rapid water delivery. Deluge and
preaction valves serve different system types.
Page 3
, Question 4
A water supply test for a fire sprinkler system yields a static pressure of 80 psi
and a residual pressure of 60 psi at a flow of 1000 gpm. The system demand is
850 gpm at 50 psi. Is the water supply adequate, and what is the available
pressure at the system demand point?
A. Adequate; available pressure at 850 gpm is approximately 62 psi.
B. Adequate; available pressure at 850 gpm is approximately 55 psi.
C. Inadequate; available pressure at 850 gpm is approximately 48 psi.
D. Inadequate; available pressure at 850 gpm is approximately 45 psi.
Correct Answer: B - Adequate; available pressure at 850 gpm is
approximately 55 psi.
RATIONALE
Using the N^1.85 relationship, the available pressure at 850 gpm is
calculated by interpolating between the test points. The supply curve
yields approximately 55 psi at 850 gpm, which exceeds the 50 psi
demand, confirming adequacy. Other values reflect incorrect curve
fitting.
Question 5
An existing NFPA 25 inspection reveals that a sprinkler head in a corrosive
environment has been painted. What is the correct action per NFPA 25, and
what is the underlying rationale?
A. The sprinkler must be replaced immediately because paint can insulate
the heat-responsive element and alter activation time.
B. The sprinkler may remain if the paint is not on the fusible link, as only
the link affects activation.
C. The sprinkler can be cleaned with solvent and returned to service if the
paint is water-based.
D. The sprinkler must be replaced only if the paint is more than 0.1 inch
thick.
Page 4
