NFPA 96/17A Class K Fire Protection Practice Test

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• Exhaust fans and dampers shall not be required to be _______ on system actuation as the systems have been tested under both zero- and high-velocity flow conditions.
• What is the purpose of make-up air?
• Shutoff devices shall require _______ prior to fuel or power being restored.
• Discharge nozzles shall be provided with an upstream device located immediately upstream of the nozzle. Which device is specified?
• How is nozzle coverage verified?
• Ducts shall lead directly to which location to avoid unduly increasing any fire hazard?
• Which statement best describes labeling on a WCFS system?
• Internal hood joints, seams, filter support frames, and appurtenances attached inside the hood shall be sealed or otherwise made greasetight.
• Grease filters shall be installed at an angle not less than ___ degrees from the horizontal?
• What is the recommended method to communicate discharge status to building occupants?
• What is the required clearance between a deep-fat fryer and surface flames?
• What standard relates to kitchen fire protection device performance labeling?
• Which best describes the purpose of warning labels on hood and WCFS components?
• Listed hood assemblies shall be installed in accordance with the ______.
• Which entity shall be notified in writing of impairment to a fire-extinguishing or exhaust system when required?
• What is the minimum distance between the grease removal device and the cooking surface?
• In NFPA 96/17A maintenance records, which item provides a bill of physical parts used in the system?
• What is the meaning of tamper resistance in WCFS components?
• Exhaust systems shall be operated ______.
• Upblast fans with motors surrounded by the airstream shall have which features?
• Which wording best describes how listed hood assemblies must be installed?
• On actuation of any cooking equipment fire extinguishing system, all sources of fuel and electric power that produce heat to all equipment protected by the system shall do what?
• Grease drip trays shall be pitched to drain into an enclosed metal container having a capacity not exceeding how many gallons?
• What term describes construction that prevents the passage of any liquid at any temperature?
• Specifications for wet chemical fire extinguishing systems shall be drawn up by or under the supervision of a trained person with the advice of the authority having jurisdiction.
• How often should systems serving low-volume cooking operations be inspected?
• The fire damper shall be listed for such use or be part of a listed exhaust hood ______.
• Which term describes construction that does not permit the passage of any grease under normal cooking conditions?
• Which two devices shall be provided above each protected cooking appliance, in accordance with the extinguishing system's design, installation, and maintenance manual?
• Cooking equipment producing smoke or grease-laden vapors shall be equipped with an _________ in accordance with the equipment and performance requirements.
• What are typical consequences of accidental WCFS discharge?
• A fire-actuated damper shall be installed in the supply air plenum at each point where a supply air duct inlet or supply air outlet penetrates the ______.
• What does NFPA 17A regulate?
• What should be included in an inspection tag for WCFS?
• Class K fire protection is designed to protect which of the following?
• What type of information do warning labels on hood and WCFS components primarily convey?
• Supply air plenums that discharge air from the face rather than from the bottom or into the exhaust hood and that are isolated from the exhaust hood by the continuously welded shell extending to the lower outermost perimeter of the entire hood assembly shall not require a ______.
• What is the minimum duct air velocity in feet per minute?
• What is the minimum allowable air velocity through any duct in feet per minute?
• All systems shall have both _______ and ________ methods of actuation.
• What is the required replacement interval for fixed temperature-sensing elements of the fusible metal alloy type?
• When pipe or conduit penetrates a duct or hood, the penetration shall have a ___________ or shall be sealed by a listed device.
• Who is typically responsible for WCFS inspection, testing, and commissioning?
• Ducts shall not pass through which barrier?
• The installer shall provide certification to the ______________ that the installation complies with the terms of the listing and the manufacturer's instructions and/ or approved design.
• What device minimizes the passage of air-borne sparks or embers into a plenum, duct, or flue?
• Listed exhaust hoods with or without exhaust dampers shall be permitted to be assembled in accordance with the ______.
• At least ______ manual actuator shall be provided for each system.
• If a duct is listed for zero clearance or protected to reduce clearance to zero, it may do what with respect to contact limits without additional corrosion protection?
• Listed exhaust hoods with or without exhaust dampers shall be permitted to be constructed of materials required by the ______.
• A _____________ device shall be permitted for more than one appliance when installed in accordance with the system's listing.
• What is the primary safety outcome of keeping ducts clean and unobstructed under NFPA 96?
• Fusible links of metal alloy type and automatic sprinklers of metal alloy type shall be replaced at least ____________ except as permitted by 11.2.6 and 11.2.7.
• What is a consequence of unmaintained grease buildup?
• All deep-fat fryers shall be installed with at least a ______ space between the fryer and surface flames from adjacent cooking equipment.
• NFPA 96 addresses interference with exhaust airflow to prevent what?
• Which personnel are qualified to design and install wet chemical fire-extinguishing systems?
• Which of the following is commonly recorded on an inspection tag for WCFS readiness?
• A service technician who has the applicable manufacturer's design, installation, and maintenance manual and service bulletins shall service the wet chemical fire-extinguishing system at intervals of no more than ___________ as outlined in 7.3.3.
• Where are WCFS nozzles typically located?
• Openings shall be provided at which locations on the duct, whichever is more accessible, and at changes of direction?
• How does WCFS differ from a water-based sprinkler?
• The warning label on hood and WCFS components serves which primary purpose?
• Which statement about AHJ approval for NFPA 96/17A installations is correct?
• How should WCFS be integrated with building alarms?
• Fixed temperature-sensing elements of the fusible metal alloy type shall be replaced at least __________ from the date of installation.
• Common Duct is defined as which of the following?
• Which type of grease filter shall not be used in these systems?
• A readily accessible manual activation device shall be located between what height range above the floor?
• Which standard applies to testing listed hood assemblies (excluding ultraviolet hoods)?
• Replacement air quantity must prevent negative pressures in the commercial cooking area from exceeding how many Pa (inches of water column)?
• Not maintaining proper duct design can lead to which issues?
• What does tamper resistance imply for WCFS components?
• What documentation must a service technician have to service the wet chemical fire-extinguishing system?
• How does NFPA 96 address interference with exhaust airflow?
• Grease filters shall be ______.
• Movable cooking equipment shall be provided with a means to ensure that it is ___________ in relation to the appliance discharge nozzle during cooking operations.
• At least __________ and after any system activation, maintenance shall be conducted in accordance with the manufacturer's design, installation, and maintenance manual.
• In-line fans are characterized by which configuration?
• Seams, joints, and penetrations inside the hood may be ________, provided the weld is smooth and cleanable.
• In NFPA 96, what is the consequence of obstructed ducts?
• Ducts shall not pass through which barrier?
• In a commercial kitchen, the WCFS is designed to discharge specifically in response to heat in which area?
• Systems serving solid fuel cooking operations (Inspection) require what frequency?
• Cooking equipment used in fixed, mobile, or temporary concessions shall comply with the standard unless exempted by the __________.
• Which hood configuration includes a non-removable grease removal device?
• Exemptions from the standard for concession installations are granted by which entity?
• Which statement correctly describes the listing requirement for fire dampers in listed exhaust hood systems?
• What steps follow a discharge?
• Manual actuators shall not require a movement of more than how many inches to secure operation?
• Which statement best describes the identification requirement for discharge nozzles?
• What is the purpose of hood grease filters?
• Systems serving high-volume cooking operations, such as 24-hour cooking, charbroiling, or wok cooking, (Inspection) require what frequency?
• Which information is typically conveyed by a warning label on hood components and WCFS?
• Penetrations and holes resulting from the removal of conduit or piping shall be ____________________________________.
• The purpose of warning labels on hood and WCFS components?
• Which statement best captures the relationship between warning labels and safe operation in fire protection practice?
• The actuation device shall have a maximum temperature rating of ______.
• Which component provides the manual activation option for WCFS?
• Discharge nozzles must be permanently marked for identification. Which term best describes that requirement?
• Which equipment is required to handle smoke or grease-laden vapors from cooking operations?
• What should the system documentation include for maintenance?
• An operating device installed and serving as an integral part of a fryer that provides secondary limitation of the grease temperature.
• Which term describes a metal-joining method that produces a product without visible interruption or variation in quality?
• In WCFS maintenance, what safety step ensures electrical hazards are avoided?
• Why is duct cleaning required?
• Where two or more hazards can be simultaneously involved in fire by reason of their proximity as determined by the AHJ.
• In a typical inspection, what is the fire protection contractor’s role?
• Discharge nozzles shall be made of which materials?
• Detection devices that are bulb-type automatic sprinklers and fusible links other than metal alloy type shall be examined and cleaned or replaced ______.
• For hood construction, the required minimum thickness is not less than 18 MSG for steel and not less than 20 MSG for stainless steel. Which option correctly states this?
• What type of weld must be used for all seams, joints, and penetrations of the hood enclosure that direct and capture grease-laden vapors and exhaust gases?
• Which organization approval is required for NFPA 96/17A installations?
• Which standard is referenced for automatic fire-extinguishing systems?
• What term is used for air deliberately introduced near combustion or exhaust devices to compensate for vapor and gases being consumed or expelled?
• What should staff do during a discharge event?
• Penetrations shall be sealed by devices listed for such use, provided their presence does not detract from the hood's or duct's ______.
• In installations where flue gases bypass the grease removal device for equipment with no exposed flame, what minimum distance is required between the cooking surface and the lower edge of the grease removal device?
• The ________ of manufacture and the _______ of the installation of the fusible links shall be marked on the system inspection tag.
• Listed hood assemblies shall be tested in accordance with ______.
• Which duct carries exhaust air from two or more branch ducts?
• Maintenance of fire-extinguishing systems and listed exhaust hoods must be performed by what kind of personnel?
• In a kitchen exhaust system, if the hood exhaust fan would continue to operate after extinguishing system activation unless listed components require otherwise. Which statement describes this requirement?
• Ultraviolet hoods shall be tested and listed in accordance with ______.
• What is the main purpose of a warning label on hood and WCFS components?
• Which three items should service tags show to verify readiness after WCFS service?
• Upblast fans have their motors located in which location relative to the airstream?
• Hoods shall be sized and configured to provide for the capture and removal of which emissions?
• Which statement best describes the primary risk addressed by tamper-resistant discharge heads?
• How often should systems serving moderate-volume cooking operations be inspected?
• In-line fans are characterized by which configuration?
• What is the typical scope of the WCFS-related commissioning performed by a fire protection contractor?
• Upon activation of the fire-extinguishing system, makeup air supplied internally to a hood shall be what action?
• After remodeling, the hood, duct, and WCFS should be?
• Ducts shall be constructed of not less than which gauges for carbon steel and stainless steel?
• A listed unitary exhaust hood design where the grease removal device is a non-removable assembly that contains an integral fire activated water-wash fire system listed for this purpose.
• At least one manual activation device shall be located a minimum of _____ and a maximum of ____ from the protected hood exhaust system (s) within a path of egress or at an alternative location acceptable to the AHJ.
• Maintenance of fire-extinguishing systems and listed exhaust hoods shall be performed by personnel who are
• What is typically tested during WCFS function testing?
• What documentation is typical for NFPA 96/17A compliance?
• Discharge nozzles must be provided with an upstream device to prevent entrance of grease vapors, moisture, environmental contaminants, or other foreign materials into the piping. Which option is acceptable as that upstream device?
• Removable grease filters and grease removal devices not integral to a listed hood must be listed under which standard?
• After a discharge, which action belongs in proper follow-up procedures?
• Seams, joints, and penetrations of the hood shall be permitted to be ______, provided that the weld is formed smooth or ground smooth, so as to not trap grease, and is cleanable.
• What items should a WCFS service tag indicate to verify readiness after service?
• Which term describes construction that does not permit the passage of any liquid at any temperature?
• Which method is acceptable to prevent entrance of contaminants into discharge piping?
• How does NFPA 96 address interference with exhaust airflow?
• Which statement is true regarding action when the cooking equipment fire extinguishing system actuates?
• Supply plenums that discharge from the face and are isolated from the exhaust hood by the continuously welded shell extending to the hood's lower outer perimeter do not require which device?
• Pipe and associated fittings shall be of ________ material having physical and chemical characteristics compatible with the wet chemical solution.
• How is WCFS activated manually?
• Which professionals are appropriate to install or service WCFS?
• The detection system in WCFS serves what function?
• Removable grease filters and grease removal devices that are not integral to a specific listed exhaust hood shall be listed in accordance with which standard?
• At least _______ fusible link or heat detector shall be installed within each exhaust duct opening in accordance with the manufacturer's listing.
• Exhaust fans and dampers shall not be required to be _______ on system actuation, due to test conditions.
• Access panels shall be made of the same material and thickness as the duct. Which option presents the correct pairing?
• Discharge nozzles shall be provided with caps or other suitable devices to prevent entrance of contaminants. Which option is most consistent with this requirement?
• When a kitchen is remodelled, what is typically required regarding fire protection?
• How is discharge status communicated to occupants?
• Shutoff devices shall require _______ prior to fuel or power being restored.
• Ultraviolet hoods shall be tested and listed in accordance with which pair of standards?
• What is the role of detection in WCFS?
• Detection devices that are bulb-type automatic sprinklers and fusible links not of metal alloy type shall be examined and cleaned or replaced at least what interval?
• Which of the following is an example of a low-volume cooking operation?
• Accidental discharge of WCFS creates what health-related concern?
• Manual actuators shall not require a force of more than how many pounds?
• Exhaust systems shall be operated when cooking equipment is turned on. Which of the following best describes this requirement?
• Which term describes air brought into the structure to compensate for vapor and/or gases being consumed or expelled by the combustion process or exhausting device?
• Internal hood joints, seams, filter support frames, and appurtenances attached inside the hood shall be ________ or ______________.
• UL 300 establishes in the context of kitchen fire protection?
• What happens to a gas appliance located under ventilating equipment when the extinguishing system activates if the appliance does not require protection?
• What is a plenum in hood systems?
• What is the typical role of a fire protection contractor during an inspection of WCFS and related components?
• In WCFS nozzle coverage verification, what is the combined approach used?
• Which item is NOT considered one of the three major components of a WCFS?
• What is the purpose of labeling on a WCFS system?
• Gas appliances not requiring protection but located under the same ventilation equipment shall _______.
• When a fire-extinguishing or exhaust system is nonoperational or impaired, the system shall be tagged as noncompliant, the system owner or owner's representative shall be notified in writing of the impairment, and, where required, the ______ shall be notified.
• Why is compatibility between NFPA standards and manufacturer instructions important for WCFS?
• NFPA 96 requires which conditions to prevent interference with exhaust airflow?
• Maintenance of fire-extinguishing systems and listed exhaust hoods containing a constant or fire-activated water system that is listed to extinguish a fire in the grease removal devices, hood exhaust plenums, and exhaust ducts shall be made by properly trained, qualified, and certified person(s) acceptable to the ________ at least every __________.
• When the automatic fire-extinguishing system is activated in a space where a signaling system serves the occupancy, what shall happen?
• Who determines whether two hazards constitute a Single Hazard Area due to proximity?
• How should hood and duct cleanliness be scheduled?
• Which statement best describes post-discharge follow-up steps?
• For cooking equipment without exposed flame where flue gases bypass grease removal devices, the minimum vertical distance is not less than how many inches?
• For charcoal-type broilers, including gas or electrically heated charbroilers, what is the minimum vertical distance between the lower edge of the grease removal device and the cooking surface?
• How is WCFS activated automatically?
• Which of the following post-discharge actions is NOT part of post-discharge handling?
• Automatic discharge activation is triggered by which devices?
• Who approves NFPA 96/17A installations?
• What information should accompany a WCFS installation?
• What are the minimum thicknesses for steel (not less than) and stainless steel (not less than) for hood construction?
• Name three major components of a WCFS.
• Which statement about local building codes and NFPA 96/17A installations is true?
• ______ pipe and fittings shall not be used unless specifically listed with the system.
• Which activity is essential during a WCFS inspection?
• Who typically installs and services WCFS?
• What happens after WCFS discharge?
• Automatic fire-extinguishing systems shall comply with _______________ or other equivalent standards and shall be installed in accordance with the requirements of the listing.
• All sources of fuel or heat to appliances served by the common exhaust duct shall be ________ upon actuation of any protection system in accordance with 4.4.4.
• Which statement best describes the role of a contractor in an inspection?
• Duct systems shall not be interconnected with any other building ventilation or exhaust system. Which of the following describes what they must not be interconnected with?
• ______ pipe and fittings shall not be used unless specifically listed with the system.
• A hood exhaust fan shall continue to ______ after the extinguishing system has been activated unless fan shut down is required by a listed component of the ventilation system or by the design of the extinguishing system.
• Pipe and associated fittings shall be of ________ material having physical and chemical characteristics compatible with the wet chemical solution.
• Inspection and servicing of the cooking equipment shall be made at least ________ by properly trained and qualified persons.
• A readily accessible means for manual activation shall be located between __ and __ above the floor, be accessible in the event of a fire, be located in a path of egress, and clearly identify the hazard protected.
• Ducts shall be constructed of and supported by carbon steel not less than which gauge or stainless steel not less than which gauge?
• What actions are required before reusing space after discharge?
• What is the primary purpose of NFPA 96?
• How should the system be accessed for maintenance?
• Which item is not typically part of a WCFS inspection?
• All manual actuators shall be provided with which item?
• Fusible links on fire damper assemblies shall be replaced at least _________ or more frequently as necessary.
• Wet chemical fire-extinguishing systems for use in cooking operations shall comply with _________.
• Which statement best defines a Branch Duct?
• If a duct penetration is not sealed by a liquidtight continuous external weld, it must be sealed by a __________ device.
• What term describes construction that does not permit the passage of any grease under normal cooking conditions?
• How do NFPA 96/17A standards support occupant safety by?
• When a baffle plate is used, the required clearance is 8 inches and it must be at least how many inches from the filters?
• 4.98 Pa is equivalent to approximately how many inches of water column?
• What is the minimum clearance from combustible material for hoods and ducts when enclosures are not required?
• What is the typical role of a fire protection contractor in an inspection?
• Gas appliances not requiring protection but located under the same ventilation equipment shall _______.
• For wet chemical systems, specifications must be drawn up under the supervision of a trained person with advice from which authority?
• UL 300 relevance to kitchen fire protection?
• Grease drip trays drain into an enclosed metal container with a capacity not exceeding what amount?
• During commissioning, what is validated for WCFS and related components?
• What is the role of the control head in WCFS?
• Proper duct design in kitchen fire protection yields which outcomes?
• If a baffle plate is used, what clearance is required and how far must it be from the filters?
• The hood enclosure seams that direct and capture grease-laden vapors and exhaust gases shall have which weld type?
• Grease filters shall be equipped with a grease drip tray beneath their lower edges. What part of the filter does this apply to?