Arizona (AZ) CR16, C16 Fire Protection Systems Practice Exam
- 150 Questions LATEST WITH CORRECT ANSWERS
Q1: In Arizona, what does the "C16" specialty contractor classification primarily authorize?
A) Roofing installations
B) Fire Protection Systems, including fire sprinklers
C) General building construction
D) Electrical systems
Answer: B
Explanation: The C16 license in Arizona is specifically for Fire Protection Systems, covering the
installation, repair, and maintenance of fire sprinkler and other suppression systems.
Q2: According to the Arizona Registrar of Contractors (ROC), who must obtain a C16 license to bid on a
project involving a fire sprinkler system in a commercial building?
A) The general contractor (B) only
B) The subcontractor performing the actual sprinkler work
C) The building owner
D) The project architect
Answer: B
Explanation: The subcontractor performing the specialty work (fire sprinkler installation) must hold the
appropriate specialty license (C16). The general contractor may hold a different license.
Q3: Which Arizona state-adopted code is the primary basis for the design and installation of automatic
fire sprinkler systems?
A) International Plumbing Code (IPC)
B) International Building Code (IBC)
C) NFPA 13: Standard for the Installation of Sprinkler Systems
D) Uniform Mechanical Code (UMC)
Answer: C
,Explanation: Arizona adopts NFPA standards by reference. NFPA 13 is the core standard for sprinkler
system design and installation.
Q4: A C16 licensee in Arizona is typically responsible for ensuring the fire protection system installation
complies with:
A) Local zoning ordinances only
B) Applicable NFPA standards, the International Building Code (IBC), and the International Fire Code (IFC)
C) Federal OSHA standards only
D) Manufacturer's suggestions only
Answer: B
Explanation: The C16 contractor must ensure compliance with all applicable state-adopted codes, which
include the IBC, IFC, and referenced NFPA standards.
Q5: What is the minimum required working pressure for a hydrostatic test of a new fire sprinkler system
in Arizona, as per NFPA 13?
A) 100 psi for 2 hours
B) 200 psi or 50 psi above the maximum system working pressure, whichever is greater, for 2 hours
C) 150 psi for 1 hour
D) The normal system operating pressure for 24 hours
Answer: B
Explanation: NFPA 13 requires hydrostatic testing at 200 psi or 50 psi above the maximum anticipated
system working pressure, maintained for 2 hours.
Q6: In Arizona, a fire sprinkler system must be inspected and tested annually by a:
A) Building owner's maintenance staff
B) Licensed C16 contractor or qualified personnel under their supervision
C) City building inspector only
D) Insurance company agent
Answer: B
Explanation: NFPA 25 requires periodic inspection, testing, and maintenance performed by qualified
personnel, which typically means a C16 licensee or their certified employees.
,Q7: Which component is designed to activate during a fire to send a waterflow alarm to the fire alarm
system?
A) Check valve
B) Pressure relief valve
C) Waterflow switch
D) Main control valve
Answer: C
Explanation: A waterflow switch (like a vane-type or pressure switch) detects water movement in the
piping and initiates an alarm signal.
Q8: What is the primary purpose of a fire department connection (FDC) or "Siamese connection"?
A) To provide a water supply for the sprinkler system
B) To allow the fire department to supplement the water supply and pressure to the sprinkler and/or
standpipe system
C) To drain the sprinkler system
D) To test the backflow preventer
Answer: B
Explanation: The FDC allows fire apparatus to pump water into the building's fire protection system,
boosting pressure and supply.
Q9: According to NFPA 13, the maximum spacing for standard pendent or upright sprinklers in an
Ordinary Hazard (Group 2) occupancy is:
A) 15 ft x 15 ft (225 sq ft)
B) 12 ft x 12 ft (144 sq ft)
C) 18 ft x 18 ft (324 sq ft)
D) 10 ft x 10 ft (100 sq ft)
Answer: A
Explanation: For Ordinary Hazard Group 2, the maximum coverage area per sprinkler is 130 sq ft, but the
maximum spacing between sprinklers is 15 ft. The 15x15 (225 sq ft) is a common rule-of-thumb
maximum for spacing, but the area of coverage is the limiting factor.
, Q10: A "deluge" sprinkler system is characterized by:
A) Closed sprinkler heads and pre-filled water piping
B) Open sprinkler heads and piping that is empty until the system valve opens
C) A limited water supply for specific equipment
D) Use of foam instead of water
Answer: B
Explanation: In a deluge system, all sprinklers are open, and the piping is dry (empty) until a detection
system (heat, smoke, flame) activates the deluge valve, flooding the entire protected area.
Q11: What is the required minimum residual pressure at the remote sprinkler in a system, as a general
rule?
A) 7 psi
B) 15 psi
C) 25 psi
D) 50 psi
Answer: A
Explanation: NFPA 13 generally requires a minimum residual pressure of 7 psi at the remote (most
hydraulically demanding) sprinkler for proper water distribution.
Q12: Which valve type is required to be supervised (tamper-switched) to indicate if it is closed?
A) Ball valve on a drain line
B) Main water supply control valve
C) Test and drain valve
D) All of the above
Answer: B
Explanation: NFPA 13 and the IFC require supervisory devices (like tamper switches) on control valves
that shut off the water supply to the sprinkler system to send a supervisory signal if the valve moves
from its open position.
- 150 Questions LATEST WITH CORRECT ANSWERS
Q1: In Arizona, what does the "C16" specialty contractor classification primarily authorize?
A) Roofing installations
B) Fire Protection Systems, including fire sprinklers
C) General building construction
D) Electrical systems
Answer: B
Explanation: The C16 license in Arizona is specifically for Fire Protection Systems, covering the
installation, repair, and maintenance of fire sprinkler and other suppression systems.
Q2: According to the Arizona Registrar of Contractors (ROC), who must obtain a C16 license to bid on a
project involving a fire sprinkler system in a commercial building?
A) The general contractor (B) only
B) The subcontractor performing the actual sprinkler work
C) The building owner
D) The project architect
Answer: B
Explanation: The subcontractor performing the specialty work (fire sprinkler installation) must hold the
appropriate specialty license (C16). The general contractor may hold a different license.
Q3: Which Arizona state-adopted code is the primary basis for the design and installation of automatic
fire sprinkler systems?
A) International Plumbing Code (IPC)
B) International Building Code (IBC)
C) NFPA 13: Standard for the Installation of Sprinkler Systems
D) Uniform Mechanical Code (UMC)
Answer: C
,Explanation: Arizona adopts NFPA standards by reference. NFPA 13 is the core standard for sprinkler
system design and installation.
Q4: A C16 licensee in Arizona is typically responsible for ensuring the fire protection system installation
complies with:
A) Local zoning ordinances only
B) Applicable NFPA standards, the International Building Code (IBC), and the International Fire Code (IFC)
C) Federal OSHA standards only
D) Manufacturer's suggestions only
Answer: B
Explanation: The C16 contractor must ensure compliance with all applicable state-adopted codes, which
include the IBC, IFC, and referenced NFPA standards.
Q5: What is the minimum required working pressure for a hydrostatic test of a new fire sprinkler system
in Arizona, as per NFPA 13?
A) 100 psi for 2 hours
B) 200 psi or 50 psi above the maximum system working pressure, whichever is greater, for 2 hours
C) 150 psi for 1 hour
D) The normal system operating pressure for 24 hours
Answer: B
Explanation: NFPA 13 requires hydrostatic testing at 200 psi or 50 psi above the maximum anticipated
system working pressure, maintained for 2 hours.
Q6: In Arizona, a fire sprinkler system must be inspected and tested annually by a:
A) Building owner's maintenance staff
B) Licensed C16 contractor or qualified personnel under their supervision
C) City building inspector only
D) Insurance company agent
Answer: B
Explanation: NFPA 25 requires periodic inspection, testing, and maintenance performed by qualified
personnel, which typically means a C16 licensee or their certified employees.
,Q7: Which component is designed to activate during a fire to send a waterflow alarm to the fire alarm
system?
A) Check valve
B) Pressure relief valve
C) Waterflow switch
D) Main control valve
Answer: C
Explanation: A waterflow switch (like a vane-type or pressure switch) detects water movement in the
piping and initiates an alarm signal.
Q8: What is the primary purpose of a fire department connection (FDC) or "Siamese connection"?
A) To provide a water supply for the sprinkler system
B) To allow the fire department to supplement the water supply and pressure to the sprinkler and/or
standpipe system
C) To drain the sprinkler system
D) To test the backflow preventer
Answer: B
Explanation: The FDC allows fire apparatus to pump water into the building's fire protection system,
boosting pressure and supply.
Q9: According to NFPA 13, the maximum spacing for standard pendent or upright sprinklers in an
Ordinary Hazard (Group 2) occupancy is:
A) 15 ft x 15 ft (225 sq ft)
B) 12 ft x 12 ft (144 sq ft)
C) 18 ft x 18 ft (324 sq ft)
D) 10 ft x 10 ft (100 sq ft)
Answer: A
Explanation: For Ordinary Hazard Group 2, the maximum coverage area per sprinkler is 130 sq ft, but the
maximum spacing between sprinklers is 15 ft. The 15x15 (225 sq ft) is a common rule-of-thumb
maximum for spacing, but the area of coverage is the limiting factor.
, Q10: A "deluge" sprinkler system is characterized by:
A) Closed sprinkler heads and pre-filled water piping
B) Open sprinkler heads and piping that is empty until the system valve opens
C) A limited water supply for specific equipment
D) Use of foam instead of water
Answer: B
Explanation: In a deluge system, all sprinklers are open, and the piping is dry (empty) until a detection
system (heat, smoke, flame) activates the deluge valve, flooding the entire protected area.
Q11: What is the required minimum residual pressure at the remote sprinkler in a system, as a general
rule?
A) 7 psi
B) 15 psi
C) 25 psi
D) 50 psi
Answer: A
Explanation: NFPA 13 generally requires a minimum residual pressure of 7 psi at the remote (most
hydraulically demanding) sprinkler for proper water distribution.
Q12: Which valve type is required to be supervised (tamper-switched) to indicate if it is closed?
A) Ball valve on a drain line
B) Main water supply control valve
C) Test and drain valve
D) All of the above
Answer: B
Explanation: NFPA 13 and the IFC require supervisory devices (like tamper switches) on control valves
that shut off the water supply to the sprinkler system to send a supervisory signal if the valve moves
from its open position.
