AZ L-92 Fire Sprinkler Systems
Contractor Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationales 2027 Q&A | Instant
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1. What is the primary purpose of an automatic sprinkler system?
A. To provide potable water
B. To cool occupied spaces continuously
C. To control or suppress a developing fire
D. To replace the building fire alarm system
Answer: C. To control or suppress a developing fire
Rationale: Automatic sprinklers are designed to respond to heat from a fire
and discharge water to control or suppress the fire, limiting fire growth
and property damage.
,2. Which Arizona contractor classification most directly covers commercial
fire protection systems?
A. C-11 Electrical
B. C-16 Fire Protection Systems
C. C-21 Hardscaping and Irrigation Systems
D. C-39 Air Conditioning
Answer: B. C-16 Fire Protection Systems
Rationale: Arizona's C-16 classification covers installation, alteration, and
repair of fire protection systems using water, steam, gas, or chemicals,
including sprinkler systems and related equipment.
3. Which component normally detects the heat of a fire in an automatic
sprinkler system?
A. Alarm bell
B. Sprinkler head
C. Fire pump
D. Check valve
Answer: B. Sprinkler head
,Rationale: A sprinkler head contains a heat-sensitive operating element
that releases water when its rated activation temperature is reached.
4. What is the main function of a sprinkler control valve?
A. Increase water temperature
B. Control water flow to the sprinkler system
C. Measure room temperature
D. Remove air from the building
Answer: B. Control water flow to the sprinkler system
Rationale: Control valves isolate or permit water flow to portions of the
fire protection system and are essential for system operation and
maintenance.
5. What does a waterflow alarm indicate?
A. The system has lost all water
B. Water is flowing through the sprinkler system
C. The building has lost electrical power
D. The fire pump has stopped
Answer: B. Water is flowing through the sprinkler system
, Rationale: A waterflow alarm operates when water moves through the
system at a sufficient rate, normally indicating sprinkler activation or
another significant flow condition.
6. What is the purpose of a fire department connection (FDC)?
A. To drain the sprinkler system
B. To supply supplemental water to the fire protection system
C. To regulate building temperature
D. To test electrical circuits
Answer: B. To supply supplemental water to the fire protection system
Rationale: The fire department connection allows responding firefighters
to pump additional water into the fire protection system.
7. Which sprinkler system is normally filled with water under pressure?
A. Dry-pipe system
B. Wet-pipe system
C. Preaction system
D. Deluge system
Answer: B. Wet-pipe system
Contractor Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationales 2027 Q&A | Instant
Download Pdf
1. What is the primary purpose of an automatic sprinkler system?
A. To provide potable water
B. To cool occupied spaces continuously
C. To control or suppress a developing fire
D. To replace the building fire alarm system
Answer: C. To control or suppress a developing fire
Rationale: Automatic sprinklers are designed to respond to heat from a fire
and discharge water to control or suppress the fire, limiting fire growth
and property damage.
,2. Which Arizona contractor classification most directly covers commercial
fire protection systems?
A. C-11 Electrical
B. C-16 Fire Protection Systems
C. C-21 Hardscaping and Irrigation Systems
D. C-39 Air Conditioning
Answer: B. C-16 Fire Protection Systems
Rationale: Arizona's C-16 classification covers installation, alteration, and
repair of fire protection systems using water, steam, gas, or chemicals,
including sprinkler systems and related equipment.
3. Which component normally detects the heat of a fire in an automatic
sprinkler system?
A. Alarm bell
B. Sprinkler head
C. Fire pump
D. Check valve
Answer: B. Sprinkler head
,Rationale: A sprinkler head contains a heat-sensitive operating element
that releases water when its rated activation temperature is reached.
4. What is the main function of a sprinkler control valve?
A. Increase water temperature
B. Control water flow to the sprinkler system
C. Measure room temperature
D. Remove air from the building
Answer: B. Control water flow to the sprinkler system
Rationale: Control valves isolate or permit water flow to portions of the
fire protection system and are essential for system operation and
maintenance.
5. What does a waterflow alarm indicate?
A. The system has lost all water
B. Water is flowing through the sprinkler system
C. The building has lost electrical power
D. The fire pump has stopped
Answer: B. Water is flowing through the sprinkler system
, Rationale: A waterflow alarm operates when water moves through the
system at a sufficient rate, normally indicating sprinkler activation or
another significant flow condition.
6. What is the purpose of a fire department connection (FDC)?
A. To drain the sprinkler system
B. To supply supplemental water to the fire protection system
C. To regulate building temperature
D. To test electrical circuits
Answer: B. To supply supplemental water to the fire protection system
Rationale: The fire department connection allows responding firefighters
to pump additional water into the fire protection system.
7. Which sprinkler system is normally filled with water under pressure?
A. Dry-pipe system
B. Wet-pipe system
C. Preaction system
D. Deluge system
Answer: B. Wet-pipe system
