BC Sprinkler Fitter Certification Exam
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
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1. Which type of sprinkler head is most commonly used in wet pipe
systems?
a) Dry pendent
b) Pendent
c) Upright dry
d) Sidewall
Pendent heads hang downward from the piping and are standard in wet
systems.
2. What is the minimum acceptable water pressure for a standard
residential sprinkler system?
a) 10 psi
b) 20 psi
c) 30 psi
d) 40 psi
30 psi is generally the minimum pressure required to ensure proper
sprinkler operation.
3. Which material is most commonly used for underground sprinkler
piping in commercial installations?
a) Copper
, b) CPVC
c) Galvanized steel
d) PVC schedule 10
CPVC is durable, resistant to corrosion, and commonly used in
commercial underground systems.
4. What device prevents backflow into the municipal water supply?
a) Pressure regulator
b) Check valve
c) Backflow preventer
d) Flow switch
A backflow preventer stops water from flowing backward and
contaminating the supply.
5. In a dry pipe sprinkler system, what is the primary purpose of the
air pressure?
a) To enhance water flow
b) To hold the valve closed until a sprinkler operates
c) To maintain heat in the pipes
d) To pressurize the system for testing
Air pressure keeps the dry pipe valve closed until a sprinkler head
activates.
6. The K-factor of a sprinkler head indicates:
a) Water pressure rating
b) Flow rate
c) Activation temperature
d) Pipe size
, K-factor represents the discharge coefficient used to calculate the flow
rate of a sprinkler.
7. Which type of system is typically installed in areas subject to
freezing temperatures?
a) Wet pipe system
b) Dry pipe system
c) Pre-action system
d) Deluge system
Dry pipe systems keep water out of pipes until the sprinkler activates,
preventing freezing.
8. What is the maximum allowable spacing between sprinklers in a
light hazard area?
a) 6 m
b) 7.5 m
c) 10 m
d) 15 m
NFPA standards allow up to 15 feet (approximately 4.5 m) spacing for
light hazard; 15 m is often used in commercial codes—careful with local
codes.
9. Which tool is used to measure the internal threads of a sprinkler
pipe?
a) Pipe cutter
b) Pipe wrench
c) Thread gauge
d) Reamer
A thread gauge ensures proper thread engagement for sprinkler fittings.
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. Which type of sprinkler head is most commonly used in wet pipe
systems?
a) Dry pendent
b) Pendent
c) Upright dry
d) Sidewall
Pendent heads hang downward from the piping and are standard in wet
systems.
2. What is the minimum acceptable water pressure for a standard
residential sprinkler system?
a) 10 psi
b) 20 psi
c) 30 psi
d) 40 psi
30 psi is generally the minimum pressure required to ensure proper
sprinkler operation.
3. Which material is most commonly used for underground sprinkler
piping in commercial installations?
a) Copper
, b) CPVC
c) Galvanized steel
d) PVC schedule 10
CPVC is durable, resistant to corrosion, and commonly used in
commercial underground systems.
4. What device prevents backflow into the municipal water supply?
a) Pressure regulator
b) Check valve
c) Backflow preventer
d) Flow switch
A backflow preventer stops water from flowing backward and
contaminating the supply.
5. In a dry pipe sprinkler system, what is the primary purpose of the
air pressure?
a) To enhance water flow
b) To hold the valve closed until a sprinkler operates
c) To maintain heat in the pipes
d) To pressurize the system for testing
Air pressure keeps the dry pipe valve closed until a sprinkler head
activates.
6. The K-factor of a sprinkler head indicates:
a) Water pressure rating
b) Flow rate
c) Activation temperature
d) Pipe size
, K-factor represents the discharge coefficient used to calculate the flow
rate of a sprinkler.
7. Which type of system is typically installed in areas subject to
freezing temperatures?
a) Wet pipe system
b) Dry pipe system
c) Pre-action system
d) Deluge system
Dry pipe systems keep water out of pipes until the sprinkler activates,
preventing freezing.
8. What is the maximum allowable spacing between sprinklers in a
light hazard area?
a) 6 m
b) 7.5 m
c) 10 m
d) 15 m
NFPA standards allow up to 15 feet (approximately 4.5 m) spacing for
light hazard; 15 m is often used in commercial codes—careful with local
codes.
9. Which tool is used to measure the internal threads of a sprinkler
pipe?
a) Pipe cutter
b) Pipe wrench
c) Thread gauge
d) Reamer
A thread gauge ensures proper thread engagement for sprinkler fittings.
