AZ L-92 Fire Sprinkler Systems
Contractor Exam Questions And
Correct Answers (Verified Answers)
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1. Which type of fire sprinkler system is constantly filled with water?
A) Dry Pipe System
B) Pre-Action System
C) Deluge System
D) Wet Pipe System
Wet pipe systems are always filled with water, allowing for immediate
discharge when a sprinkler head is activated.
2. What is the primary purpose of a fire sprinkler system?
A) To prevent building fires
B) To control or suppress fire until the fire department arrives
C) To replace fire extinguishers
D) To monitor smoke levels
Sprinkler systems are designed to control or suppress fire, reducing
property damage and saving lives.
3. In a dry pipe sprinkler system, what prevents water from filling the
pipes until the system activates?
A) Check valve
B) Control valve
C) Dry pipe valve
D) Pressure relief valve
The dry pipe valve holds back water and releases it only when a
sprinkler head is activated.
,4. Which type of sprinkler head is most common in residential
applications?
A) Pendant
B) Upright
C) Concealed
D) Sidewall
Concealed sprinkler heads are widely used in residential and
commercial interiors for aesthetics.
5. What is the minimum temperature rating for a standard sprinkler head
in an office environment?
A) 135°F
B) 155°F
C) 175°F
D) 200°F
155°F is the standard temperature rating for general commercial and
office environments.
6. Which component of a fire sprinkler system controls water flow into
the system?
A) Alarm valve
B) Sprinkler head
C) Control valve
D) Test connection
The control valve regulates the main water supply to the system.
7. Which sprinkler system is designed to provide maximum water
discharge over a large area immediately?
A) Wet pipe
B) Dry pipe
C) Deluge system
D) Pre-action system
Deluge systems have open sprinklers and release water over the entire
area simultaneously.
8. A pre-action system is primarily used in which type of environment?
A) Warehouses
B) Areas with sensitive equipment like data centers
C) Residential homes
D) Parking garages
, Pre-action systems are designed to prevent accidental water damage
in sensitive environments.
9. What is the primary difference between a dry pipe and pre-action
sprinkler system?
A) Dry pipe systems are faster
B) Pre-action systems always contain water
C) Pre-action systems require a separate triggering event
D) Dry pipe systems are used in warm climates
Pre-action systems require both smoke detection and sprinkler
activation to release water.
10. Which type of fire sprinkler head is designed to distribute water
in a circular pattern?
A) Upright
B) Sidewall
C) Pendant
D) Concealed
Pendant heads hang from the ceiling and distribute water in a
circular pattern beneath them.
11. What is the purpose of a fire department connection (FDC)?
A) To test the system
B) To drain water
C) To allow the fire department to supplement system water supply
D) To control alarms
FDCs enable firefighters to boost water supply during large fires.
12. Which standard governs the design and installation of fire
sprinkler systems in the U.S.?
A) NFPA 10
B) NFPA 70
C) NFPA 13
D) NFPA 25
NFPA 13 provides the minimum requirements for design and
installation of sprinkler systems.
13. What is the main hazard addressed by a quick-response sprinkler
head?
A) Smoke inhalation
B) Flooding
C) Fast-spreading fires
Contractor Exam Questions And
Correct Answers (Verified Answers)
Plus Rationale2026 Q&A| Instant
Download Pdf
1. Which type of fire sprinkler system is constantly filled with water?
A) Dry Pipe System
B) Pre-Action System
C) Deluge System
D) Wet Pipe System
Wet pipe systems are always filled with water, allowing for immediate
discharge when a sprinkler head is activated.
2. What is the primary purpose of a fire sprinkler system?
A) To prevent building fires
B) To control or suppress fire until the fire department arrives
C) To replace fire extinguishers
D) To monitor smoke levels
Sprinkler systems are designed to control or suppress fire, reducing
property damage and saving lives.
3. In a dry pipe sprinkler system, what prevents water from filling the
pipes until the system activates?
A) Check valve
B) Control valve
C) Dry pipe valve
D) Pressure relief valve
The dry pipe valve holds back water and releases it only when a
sprinkler head is activated.
,4. Which type of sprinkler head is most common in residential
applications?
A) Pendant
B) Upright
C) Concealed
D) Sidewall
Concealed sprinkler heads are widely used in residential and
commercial interiors for aesthetics.
5. What is the minimum temperature rating for a standard sprinkler head
in an office environment?
A) 135°F
B) 155°F
C) 175°F
D) 200°F
155°F is the standard temperature rating for general commercial and
office environments.
6. Which component of a fire sprinkler system controls water flow into
the system?
A) Alarm valve
B) Sprinkler head
C) Control valve
D) Test connection
The control valve regulates the main water supply to the system.
7. Which sprinkler system is designed to provide maximum water
discharge over a large area immediately?
A) Wet pipe
B) Dry pipe
C) Deluge system
D) Pre-action system
Deluge systems have open sprinklers and release water over the entire
area simultaneously.
8. A pre-action system is primarily used in which type of environment?
A) Warehouses
B) Areas with sensitive equipment like data centers
C) Residential homes
D) Parking garages
, Pre-action systems are designed to prevent accidental water damage
in sensitive environments.
9. What is the primary difference between a dry pipe and pre-action
sprinkler system?
A) Dry pipe systems are faster
B) Pre-action systems always contain water
C) Pre-action systems require a separate triggering event
D) Dry pipe systems are used in warm climates
Pre-action systems require both smoke detection and sprinkler
activation to release water.
10. Which type of fire sprinkler head is designed to distribute water
in a circular pattern?
A) Upright
B) Sidewall
C) Pendant
D) Concealed
Pendant heads hang from the ceiling and distribute water in a
circular pattern beneath them.
11. What is the purpose of a fire department connection (FDC)?
A) To test the system
B) To drain water
C) To allow the fire department to supplement system water supply
D) To control alarms
FDCs enable firefighters to boost water supply during large fires.
12. Which standard governs the design and installation of fire
sprinkler systems in the U.S.?
A) NFPA 10
B) NFPA 70
C) NFPA 13
D) NFPA 25
NFPA 13 provides the minimum requirements for design and
installation of sprinkler systems.
13. What is the main hazard addressed by a quick-response sprinkler
head?
A) Smoke inhalation
B) Flooding
C) Fast-spreading fires
