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Arizona (AZ) CR16, C16 Fire Protection Systems
Exam Actual exam Questions with Correct
Answers and explanations LATEST THIS YEAR -
JUST RELEASED
Arizona (AZ) CR16, C16 Fire Protection Systems Exam
Exam Coverage Summary
The Arizona CR16/C16 Fire Protection Systems exam tests knowledge of wet, dry, pre-action, and deluge
sprinkler systems, standpipe systems, fire pumps, backflow prevention, underground fire mains, NFPA
standards (13, 13D, 13R, 14, 20, 24, 25, 72, 96), hydraulic calculations, blueprint reading, material take-
offs, Arizona Registrar of Contractors licensing rules, contractor business management, safety
regulations (OSHA trenching and confined space), and inspection/testing procedures for both residential
and commercial fire protection installations.
All 200 Randomized Questions
Question 1
Which NFPA standard is primarily used for the installation of sprinkler systems in commercial buildings?
A) NFPA 10
B) NFPA 13
C) NFPA 25
D) NFPA 72
Correct Answer: B
Summary Rationale: NFPA 13 provides the standard requirements for the installation of fire sprinkler
systems in commercial structures.
Question 2
Which NFPA standard governs the design and installation of fire sprinkler systems in one- and two-
family homes?
A) NFPA 13D
B) NFPA 13R
C) NFPA 13
D) NFPA 14
Correct Answer: A
*Summary Rationale: NFPA 13D specifically addresses fire sprinkler systems in one- and two-family
homes and manufactured homes.*
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Question 3
What is the primary function of a backflow preventer in a fire protection system?
A) Increase water pressure
B) Prevent contaminated water from flowing back into the potable water supply
C) Regulate sprinkler discharge rate
D) Store water for fire suppression
Correct Answer: B
Summary Rationale: Backflow preventers stop contaminated water from flowing back into the clean
water supply, ensuring public health safety.
Question 4
Which type of backflow preventer is most commonly used in fire protection systems?
A) Air gap
B) Double check valve assembly (DCVA)
C) Reduced pressure zone assembly (RPZA)
D) Pressure vacuum breaker (PVB)
Correct Answer: C
Summary Rationale: The Reduced Pressure Zone Assembly (RPZA) provides a higher level of protection
using a relief valve to prevent backflow.
Question 5
In Arizona, the Authority Having Jurisdiction (AHJ) for fire protection systems is typically the:
A) State Fire Marshal
B) Local fire department
C) County building official
D) Insurance company
Correct Answer: B
Summary Rationale: The local fire department usually serves as the AHJ, reviewing plans, issuing permits,
and approving final installations.
Question 6
Which Arizona statute establishes the licensing requirements for C-16 fire protection contractors?
A) A.R.S. 32-1401
B) A.R.S. 32-1001
C) A.R.S. 32-3101
D) A.R.S. 32-4101
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Correct Answer: C
*Summary Rationale: A.R.S. 32-3101 outlines the licensing, registration, and regulation of contractors,
including the C-16 specialty.*
Question 7
The minimum design density for a Light Hazard occupancy according to NFPA 13 is:
A) 0.10 gpm/ft² over 1,500 ft²
B) 0.15 gpm/ft² over 1,200 ft²
C) 0.20 gpm/ft² over 1,500 ft²
D) 0.30 gpm/ft² over 2,000 ft²
Correct Answer: B
*Summary Rationale: Light Hazard occupancies require a minimum of 0.15 gpm/ft² applied over the
most hydraulically demanding 1,200 ft².*
Question 8
Which system uses water-filled pipes at all times and is the most common type of sprinkler system?
A) Dry pipe system
B) Pre-action system
C) Wet pipe system
D) Deluge system
Correct Answer: C
Summary Rationale: Wet pipe systems have water constantly present in the pipes, ready for immediate
discharge when a sprinkler head activates.
Question 9
Which system is used where pipes may be exposed to freezing temperatures?
A) Wet pipe system
B) Dry pipe system
C) Deluge system
D) Foam system
Correct Answer: B
Summary Rationale: Dry pipe systems contain air or nitrogen under pressure instead of water, preventing
freezing in cold environments.
Question 10
What is the primary purpose of a fire department connection (FDC)?
A) Store water for the system
B) Supply water from fire department to the system
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C) Measure water pressure
D) Drain the system for maintenance
Correct Answer: B
Summary Rationale: Fire department connections allow firefighters to pump supplemental water into the
system during emergencies.
Question 11
Which type of system releases water through all sprinkler heads simultaneously?
A) Wet pipe
B) Dry pipe
C) Deluge
D) Pre-action
Correct Answer: C
Summary Rationale: Deluge systems open all sprinkler heads at once when the detection system
activates, typically used in high-hazard environments.
Question 12
Which system requires separate fire detection before water can be released into the piping?
A) Wet pipe
B) Dry pipe
C) Pre-action
D) Deluge
Correct Answer: C
Summary Rationale: Pre-action systems require a detection signal before activating water flow,
providing an extra layer against accidental discharge.
Question 13
What is the primary purpose of a fire pump in a sprinkler system?
A) Detect smoke throughout the building
B) Maintain or boost water pressure to meet system demand
C) Filter debris from the water supply
D) Drain the system after testing
Correct Answer: B
Summary Rationale: Fire pumps are designed to boost water pressure when the municipal supply cannot
meet the system's hydraulic demands.
Question 14
Which NFPA standard addresses fire pump installation and testing?
Arizona (AZ) CR16, C16 Fire Protection Systems
Exam Actual exam Questions with Correct
Answers and explanations LATEST THIS YEAR -
JUST RELEASED
Arizona (AZ) CR16, C16 Fire Protection Systems Exam
Exam Coverage Summary
The Arizona CR16/C16 Fire Protection Systems exam tests knowledge of wet, dry, pre-action, and deluge
sprinkler systems, standpipe systems, fire pumps, backflow prevention, underground fire mains, NFPA
standards (13, 13D, 13R, 14, 20, 24, 25, 72, 96), hydraulic calculations, blueprint reading, material take-
offs, Arizona Registrar of Contractors licensing rules, contractor business management, safety
regulations (OSHA trenching and confined space), and inspection/testing procedures for both residential
and commercial fire protection installations.
All 200 Randomized Questions
Question 1
Which NFPA standard is primarily used for the installation of sprinkler systems in commercial buildings?
A) NFPA 10
B) NFPA 13
C) NFPA 25
D) NFPA 72
Correct Answer: B
Summary Rationale: NFPA 13 provides the standard requirements for the installation of fire sprinkler
systems in commercial structures.
Question 2
Which NFPA standard governs the design and installation of fire sprinkler systems in one- and two-
family homes?
A) NFPA 13D
B) NFPA 13R
C) NFPA 13
D) NFPA 14
Correct Answer: A
*Summary Rationale: NFPA 13D specifically addresses fire sprinkler systems in one- and two-family
homes and manufactured homes.*
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Question 3
What is the primary function of a backflow preventer in a fire protection system?
A) Increase water pressure
B) Prevent contaminated water from flowing back into the potable water supply
C) Regulate sprinkler discharge rate
D) Store water for fire suppression
Correct Answer: B
Summary Rationale: Backflow preventers stop contaminated water from flowing back into the clean
water supply, ensuring public health safety.
Question 4
Which type of backflow preventer is most commonly used in fire protection systems?
A) Air gap
B) Double check valve assembly (DCVA)
C) Reduced pressure zone assembly (RPZA)
D) Pressure vacuum breaker (PVB)
Correct Answer: C
Summary Rationale: The Reduced Pressure Zone Assembly (RPZA) provides a higher level of protection
using a relief valve to prevent backflow.
Question 5
In Arizona, the Authority Having Jurisdiction (AHJ) for fire protection systems is typically the:
A) State Fire Marshal
B) Local fire department
C) County building official
D) Insurance company
Correct Answer: B
Summary Rationale: The local fire department usually serves as the AHJ, reviewing plans, issuing permits,
and approving final installations.
Question 6
Which Arizona statute establishes the licensing requirements for C-16 fire protection contractors?
A) A.R.S. 32-1401
B) A.R.S. 32-1001
C) A.R.S. 32-3101
D) A.R.S. 32-4101
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Correct Answer: C
*Summary Rationale: A.R.S. 32-3101 outlines the licensing, registration, and regulation of contractors,
including the C-16 specialty.*
Question 7
The minimum design density for a Light Hazard occupancy according to NFPA 13 is:
A) 0.10 gpm/ft² over 1,500 ft²
B) 0.15 gpm/ft² over 1,200 ft²
C) 0.20 gpm/ft² over 1,500 ft²
D) 0.30 gpm/ft² over 2,000 ft²
Correct Answer: B
*Summary Rationale: Light Hazard occupancies require a minimum of 0.15 gpm/ft² applied over the
most hydraulically demanding 1,200 ft².*
Question 8
Which system uses water-filled pipes at all times and is the most common type of sprinkler system?
A) Dry pipe system
B) Pre-action system
C) Wet pipe system
D) Deluge system
Correct Answer: C
Summary Rationale: Wet pipe systems have water constantly present in the pipes, ready for immediate
discharge when a sprinkler head activates.
Question 9
Which system is used where pipes may be exposed to freezing temperatures?
A) Wet pipe system
B) Dry pipe system
C) Deluge system
D) Foam system
Correct Answer: B
Summary Rationale: Dry pipe systems contain air or nitrogen under pressure instead of water, preventing
freezing in cold environments.
Question 10
What is the primary purpose of a fire department connection (FDC)?
A) Store water for the system
B) Supply water from fire department to the system
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C) Measure water pressure
D) Drain the system for maintenance
Correct Answer: B
Summary Rationale: Fire department connections allow firefighters to pump supplemental water into the
system during emergencies.
Question 11
Which type of system releases water through all sprinkler heads simultaneously?
A) Wet pipe
B) Dry pipe
C) Deluge
D) Pre-action
Correct Answer: C
Summary Rationale: Deluge systems open all sprinkler heads at once when the detection system
activates, typically used in high-hazard environments.
Question 12
Which system requires separate fire detection before water can be released into the piping?
A) Wet pipe
B) Dry pipe
C) Pre-action
D) Deluge
Correct Answer: C
Summary Rationale: Pre-action systems require a detection signal before activating water flow,
providing an extra layer against accidental discharge.
Question 13
What is the primary purpose of a fire pump in a sprinkler system?
A) Detect smoke throughout the building
B) Maintain or boost water pressure to meet system demand
C) Filter debris from the water supply
D) Drain the system after testing
Correct Answer: B
Summary Rationale: Fire pumps are designed to boost water pressure when the municipal supply cannot
meet the system's hydraulic demands.
Question 14
Which NFPA standard addresses fire pump installation and testing?
