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Kitchen Hood Fire Suppression Technician Certification
Exam | Latest Verified Questions and Detailed Answers
OVERVIEW DESCRIPTION:
This exam is designed for technicians seeking certification in commercial kitchen hood fire
suppression systems. It comprehensively covers all key domains required by NFPA 96 and
NFPA 17A, including UL 300 wet chemical system components (fusible links, nozzles,
cylinders, pull stations), installation and design requirements, semiannual maintenance
and 12-year hydrostatic testing procedures, proper cleaning and grease management,
fuel/electric shutoff verification, and special hazards for solid fuel cooking and mobile food
trucks. Each question includes a correct answer and a concise expert rationale to reinforce
code-compliant practices and technical understanding.
QUESTION 1
What is the primary difference between UL 300 listed wet chemical systems and older
dry chemical systems for kitchen hoods?
A) Dry chemical systems are more effective on grease fires
B) Wet chemical systems cool and saponify grease, while dry chemical only interrupts
the flame
C) Wet chemical systems require higher discharge pressure
D) Dry chemical systems are allowed for solid fuel cooking
CORRECT ANSWER: B
EXPERT RATIONALE: UL 300 requires wet chemicals that cool the grease and form a
foam layer (saponification), preventing reflash. Dry chemicals do not cool and can allow
reignition on hot surfaces.
QUESTION 2
How often must fusible links be replaced in a commercial kitchen hood fire suppression
system?
A) Annually
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B) Every 6 months
C) Every 5 years
D) Only when discharged
CORRECT ANSWER: B
EXPERT RATIONALE: NFPA 17A and manufacturer requirements mandate replacement
of fusible links semiannually to ensure they haven’t weakened or corroded.
QUESTION 3
What is the correct action when a pressure gauge on a wet chemical tank reads below
the operable range?
A) Add compressed air to the tank
B) Replace the entire tank immediately
C) Note it on the inspection report and schedule replacement within 30 days
D) Remove the gauge and test pressure manually
CORRECT ANSWER: C
EXPERT RATIONALE: Low pressure indicates possible leakage or loss of expellant gas.
The system is impaired; it must be noted and the tank replaced or recharged promptly,
but not simply repressurized.
QUESTION 4
Which nozzle type is typically used to direct wet chemical agent onto the cooking
surface and into the exhaust inlet?
A) Omnidirectional spray nozzle
B) Solid stream nozzle
C) Splatter nozzle (directional)
D) Atomizing fog nozzle
CORRECT ANSWER: C
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EXPERT RATIONALE: Splatter or directional nozzles are aimed specifically at grease-
laden surfaces and the plenum. They create a spray pattern that coats the hazard area.
QUESTION 5
According to NFPA 96, how often must the entire exhaust system, including hood, ducts,
and fans, be inspected for grease buildup?
A) Monthly
B) Quarterly
C) Semiannually
D) Frequency determined by volume of cooking
CORRECT ANSWER: D
EXPERT RATIONALE: NFPA 96 requires inspection frequency based on cooking volume
(e.g., monthly for 24/7 operations, quarterly for high-volume, semiannually for
moderate, annually for low).
QUESTION 6
What is the hydrostatic testing interval for wet chemical agent cylinders in a kitchen
hood system?
A) 5 years
B) 6 years
C) 12 years
D) Never, disposable cylinders only
CORRECT ANSWER: C
EXPERT RATIONALE: NFPA 17A mandates hydrostatic testing of wet chemical cylinders
every 12 years to verify structural integrity.
QUESTION 7
Upon manual pull station actuation, what must the system automatically do regarding
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cooking appliances?
A) Only sound an alarm
B) Shut off electrical power but not gas
C) Shut off both gas and electricity to all cooking appliances under the hood
D) Reverse the exhaust fan
CORRECT ANSWER: C
EXPERT RATIONALE: UL 300 and NFPA 17A require fuel and electric shutoff to cooking
appliances to eliminate the heat source during agent discharge.
QUESTION 8
Where should a manual pull station for a kitchen hood system be located?
A) Inside the kitchen hood plenum
B) At a clearly marked, accessible egress path, 42-48 inches above floor
C) Behind cooking equipment to prevent accidental use
D) On the roof near the exhaust fan
CORRECT ANSWER: B
EXPERT RATIONALE: Pull stations must be along an escape route, readily accessible,
and mounted at standard height for easy activation during a fire emergency.
QUESTION 9
What is the purpose of protective blow-off caps on fire suppression nozzles?
A) To prevent grease buildup inside the nozzle
B) To aim the agent more precisely
C) To increase discharge pressure
D) To color-code the agent type
CORRECT ANSWER: A
EXPERT RATIONALE: Blow-off caps keep grease, dust, and debris from clogging the
nozzle orifice. They blow off when the system discharges.
Kitchen Hood Fire Suppression Technician Certification
Exam | Latest Verified Questions and Detailed Answers
OVERVIEW DESCRIPTION:
This exam is designed for technicians seeking certification in commercial kitchen hood fire
suppression systems. It comprehensively covers all key domains required by NFPA 96 and
NFPA 17A, including UL 300 wet chemical system components (fusible links, nozzles,
cylinders, pull stations), installation and design requirements, semiannual maintenance
and 12-year hydrostatic testing procedures, proper cleaning and grease management,
fuel/electric shutoff verification, and special hazards for solid fuel cooking and mobile food
trucks. Each question includes a correct answer and a concise expert rationale to reinforce
code-compliant practices and technical understanding.
QUESTION 1
What is the primary difference between UL 300 listed wet chemical systems and older
dry chemical systems for kitchen hoods?
A) Dry chemical systems are more effective on grease fires
B) Wet chemical systems cool and saponify grease, while dry chemical only interrupts
the flame
C) Wet chemical systems require higher discharge pressure
D) Dry chemical systems are allowed for solid fuel cooking
CORRECT ANSWER: B
EXPERT RATIONALE: UL 300 requires wet chemicals that cool the grease and form a
foam layer (saponification), preventing reflash. Dry chemicals do not cool and can allow
reignition on hot surfaces.
QUESTION 2
How often must fusible links be replaced in a commercial kitchen hood fire suppression
system?
A) Annually
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B) Every 6 months
C) Every 5 years
D) Only when discharged
CORRECT ANSWER: B
EXPERT RATIONALE: NFPA 17A and manufacturer requirements mandate replacement
of fusible links semiannually to ensure they haven’t weakened or corroded.
QUESTION 3
What is the correct action when a pressure gauge on a wet chemical tank reads below
the operable range?
A) Add compressed air to the tank
B) Replace the entire tank immediately
C) Note it on the inspection report and schedule replacement within 30 days
D) Remove the gauge and test pressure manually
CORRECT ANSWER: C
EXPERT RATIONALE: Low pressure indicates possible leakage or loss of expellant gas.
The system is impaired; it must be noted and the tank replaced or recharged promptly,
but not simply repressurized.
QUESTION 4
Which nozzle type is typically used to direct wet chemical agent onto the cooking
surface and into the exhaust inlet?
A) Omnidirectional spray nozzle
B) Solid stream nozzle
C) Splatter nozzle (directional)
D) Atomizing fog nozzle
CORRECT ANSWER: C
,3|Page
EXPERT RATIONALE: Splatter or directional nozzles are aimed specifically at grease-
laden surfaces and the plenum. They create a spray pattern that coats the hazard area.
QUESTION 5
According to NFPA 96, how often must the entire exhaust system, including hood, ducts,
and fans, be inspected for grease buildup?
A) Monthly
B) Quarterly
C) Semiannually
D) Frequency determined by volume of cooking
CORRECT ANSWER: D
EXPERT RATIONALE: NFPA 96 requires inspection frequency based on cooking volume
(e.g., monthly for 24/7 operations, quarterly for high-volume, semiannually for
moderate, annually for low).
QUESTION 6
What is the hydrostatic testing interval for wet chemical agent cylinders in a kitchen
hood system?
A) 5 years
B) 6 years
C) 12 years
D) Never, disposable cylinders only
CORRECT ANSWER: C
EXPERT RATIONALE: NFPA 17A mandates hydrostatic testing of wet chemical cylinders
every 12 years to verify structural integrity.
QUESTION 7
Upon manual pull station actuation, what must the system automatically do regarding
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cooking appliances?
A) Only sound an alarm
B) Shut off electrical power but not gas
C) Shut off both gas and electricity to all cooking appliances under the hood
D) Reverse the exhaust fan
CORRECT ANSWER: C
EXPERT RATIONALE: UL 300 and NFPA 17A require fuel and electric shutoff to cooking
appliances to eliminate the heat source during agent discharge.
QUESTION 8
Where should a manual pull station for a kitchen hood system be located?
A) Inside the kitchen hood plenum
B) At a clearly marked, accessible egress path, 42-48 inches above floor
C) Behind cooking equipment to prevent accidental use
D) On the roof near the exhaust fan
CORRECT ANSWER: B
EXPERT RATIONALE: Pull stations must be along an escape route, readily accessible,
and mounted at standard height for easy activation during a fire emergency.
QUESTION 9
What is the purpose of protective blow-off caps on fire suppression nozzles?
A) To prevent grease buildup inside the nozzle
B) To aim the agent more precisely
C) To increase discharge pressure
D) To color-code the agent type
CORRECT ANSWER: A
EXPERT RATIONALE: Blow-off caps keep grease, dust, and debris from clogging the
nozzle orifice. They blow off when the system discharges.
