I85PREP
⌘ K
NY Fire Alarm Installer study materials
NY Fire Alarm Installer study resources

NY Fire Alarm Installer practice questions

One question at a time. Build your NY Fire Alarm Installer understanding.

First 50 of 200 questions. Each one lists the choices, the correct answer, and an explanation. The checker at the top of this page saves progress in this browser when it is available.

Continue in the practice tool above to load more questions, 50 at a time.

Question 1Codes, Standards, and Regulatory Framework

Manual fire alarm boxes must be installed so the operable portion is at what height above the finished floor?

  1. 54 in to 60 in
  2. 36 in to 42 in
  3. 42 in to 48 in Correct answer.
  4. 48 in to 54 in

Explanation

NFPA 72 requires the operable portion of a manual fire alarm box to be mounted 42 in to 48 in above the finished floor. This height keeps the box reachable for most occupants, including those in wheelchairs.

Question 2Codes, Standards, and Regulatory Framework

Where must a manual fire alarm box be located in relation to an exit doorway?

  1. At least 10 ft from the exit door
  2. Within 10 ft of the exit door
  3. Within 5 ft of the exit door Correct answer.
  4. At the corridor's far end

Explanation

Manual boxes are placed so that a person leaving the floor passes one before reaching the exit. NFPA 72 requires the box to be within 5 ft of the exit doorway.

Question 3Codes, Standards, and Regulatory Framework

In public mode, what minimum sound level must a fire alarm audible appliance produce in a corridor?

  1. 15 dBA above ambient, 65 dBA minimum Correct answer.
  2. 5 dBA above ambient, 45 dBA minimum
  3. 20 dBA above ambient, 75 dBA minimum
  4. 10 dBA above ambient, 55 dBA minimum

Explanation

Public-mode audible signals must exceed the average ambient sound level by 15 dBA and must be at least 65 dBA. This ensures the alarm is distinguishable from normal background noise.

Question 4Codes, Standards, and Regulatory Framework

What is the maximum spacing between smoke detectors on a smooth, flat ceiling 10 ft high?

  1. 25 ft
  2. 20 ft
  3. 40 ft
  4. 30 ft Correct answer.

Explanation

For a smooth ceiling, NFPA 72 permits smoke detector spacing up to 30 ft. The 30 ft spacing is based on a 900 sq ft area per detector under standard conditions.

Question 5Codes, Standards, and Regulatory Framework

How does a Class B initiating device circuit behave after a single open conductor?

  1. It requires two independent paths to every device.
  2. It remains operational after a single open conductor.
  3. It stops operating after a single open conductor. Correct answer.
  4. It requires no circuit supervision at any point.

Explanation

A Class B circuit does not survive a single open fault; the devices beyond the break are lost. Class A circuits are the ones that remain operational after a single open.

Question 6Codes, Standards, and Regulatory Framework

When alarm, supervisory, and trouble conditions occur at the same time, which signal has the highest priority?

  1. Trouble
  2. Supervisory
  3. All have equal priority
  4. Alarm Correct answer.

Explanation

Fire alarm control units are arranged to give alarm signals priority over supervisory and trouble signals. This ensures that a life-safety alarm is not masked by a lower-priority condition.

Question 7Codes, Standards, and Regulatory Framework

Duct smoke detectors are required where an air handling unit supplies more than what airflow?

  1. 5,000 cfm
  2. 3,000 cfm
  3. 2,000 cfm Correct answer.
  4. 1,000 cfm

Explanation

NFPA 90A requires smoke detectors in air handling systems that supply more than 2,000 cfm. The detector shuts down or controls the unit to limit smoke spread through the ducts.

Question 8Codes, Standards, and Regulatory Framework

At what height above the finished floor must visible notification appliances normally be mounted?

  1. 96 in to 108 in
  2. 80 in to 96 in Correct answer.
  3. 60 in to 72 in
  4. 72 in to 80 in

Explanation

NFPA 72 requires visible notification appliances to be mounted 80 in to 96 in above the finished floor. This range keeps the strobe within the normal field of view.

Question 9Codes, Standards, and Regulatory Framework

In a positive alarm sequence, the operator must acknowledge the alarm signal within how many seconds?

  1. 60 seconds
  2. 15 seconds Correct answer.
  3. 30 seconds
  4. 5 seconds

Explanation

A positive alarm sequence gives trained personnel 15 seconds to acknowledge the signal. After acknowledgment, the system allows up to 180 seconds to investigate before general alarm.

Question 10Codes, Standards, and Regulatory Framework

A smoke detector installed in an elevator lobby typically initiates which action?

  1. Phase I elevator recall Correct answer.
  2. Phase II elevator recall
  3. Closing of stairwell doors
  4. Shunt trip of elevator power

Explanation

Lobby smoke detectors initiate Phase I recall, which returns elevators to a designated floor. Phase II is the manual firefighter control mode, not the automatic lobby response.

Question 11Codes, Standards, and Regulatory Framework

Secondary batteries for a commercial fire alarm system must be able to operate the system for how long in standby, followed by how long in alarm?

  1. 24 hours standby plus 5 minutes alarm Correct answer.
  2. 60 hours standby plus 5 minutes alarm
  3. 4 hours standby plus 5 minutes alarm
  4. 24 hours standby plus 30 minutes alarm

Explanation

NFPA 72 sets 24 hours of standby followed by 5 minutes of alarm as the secondary power requirement for many commercial protected-premises systems. Battery calculations must account for both periods.

Question 12Codes, Standards, and Regulatory Framework

A tamper switch on a closed sprinkler control valve normally produces which signal?

  1. Supervisory Correct answer.
  2. Trouble
  3. Alarm
  4. Waterflow

Explanation

A valve tamper switch monitors the open position of a sprinkler control valve. Off-normal position is a supervisory condition, not a fire alarm or waterflow alarm.

Question 13Codes, Standards, and Regulatory Framework

Smoke detectors must be kept at least what distance from air supply diffusers?

  1. 3 ft Correct answer.
  2. 1 ft
  3. 6 ft
  4. 10 ft

Explanation

NFPA 72 requires spot-type smoke detectors to be at least 3 ft from supply diffusers. This prevents air from the diffuser from delaying or diluting smoke entry into the detector.

Question 14Codes, Standards, and Regulatory Framework

In a hotel sleeping room, the audible alarm must produce at least what sound level at the pillow?

  1. 65 dBA
  2. 70 dBA
  3. 75 dBA Correct answer.
  4. 85 dBA

Explanation

Sleeping areas require a higher sound level to awaken occupants. NFPA 72 requires at least 75 dBA at the pillow level in sleeping rooms.

Question 15Codes, Standards, and Regulatory Framework

What is the maximum travel distance from any point in a business occupancy to a manual fire alarm box?

  1. 300 ft
  2. 200 ft Correct answer.
  3. 100 ft
  4. 150 ft

Explanation

NFPA 101 limits travel distance to a manual fire alarm box to 200 ft in business occupancies. The limit helps ensure occupants can reach a box without excessive delay.

Question 16Codes, Standards, and Regulatory Framework

A ceiling-mounted spot-type smoke detector must be located at least what distance from a side wall?

  1. 2 in
  2. 12 in
  3. 6 in
  4. 4 in Correct answer.

Explanation

NFPA 72 requires spot-type smoke detectors to be at least 4 in from a side wall. This keeps the detector out of the dead-air space along the wall-ceiling intersection.

Question 17Codes, Standards, and Regulatory Framework

How does a Class A notification appliance circuit behave after a single open conductor?

  1. It may serve only one notification appliance.
  2. It remains operational after a single open. Correct answer.
  3. It requires no supervision of the circuit.
  4. It stops operating completely after a single open.

Explanation

Class A wiring provides a redundant path so the circuit remains operational after a single open. Class B wiring, by contrast, loses devices beyond the break.

Question 18Codes, Standards, and Regulatory Framework

In a high-rise building, where is the fire command center typically located?

  1. On the roof beside the elevator
  2. In the lowest parking level
  3. In the lobby near the entrance Correct answer.
  4. In the basement mechanical room

Explanation

The fire command center is normally located at the lobby level near the entrance so responding firefighters can access it quickly. Its exact location must be approved and identified for fire department use.

Question 19Codes, Standards, and Regulatory Framework

Under the NYC Building Code, a building is classified as a high-rise when its height reaches what value?

  1. 60 ft
  2. 100 ft
  3. 75 ft Correct answer.
  4. 50 ft

Explanation

NYC classifies a building as a high-rise when an occupied floor is more than 75 ft above the lowest level of fire department vehicle access. High-rise status triggers additional fire alarm and communication requirements.

Question 20Codes, Standards, and Regulatory Framework

Where are fire alarm signals from a protected premises normally transmitted for central station monitoring?

  1. To the electrical utility
  2. To a listed central station Correct answer.
  3. To the building owner's cell phone
  4. To the local firehouse by direct telephone line

Explanation

Central station monitoring uses a listed supervising station that receives signals and dispatches the fire department. The station must meet NFPA 72 supervision and retransmission requirements.

Question 21Codes, Standards, and Regulatory Framework

A sprinkler waterflow switch is normally arranged to delay the alarm signal for how long to reduce false alarms from surges?

  1. 30 to 90 seconds Correct answer.
  2. 5 to 10 seconds
  3. 10 to 30 seconds
  4. 120 to 180 seconds

Explanation

NFPA 13 permits a retard period of 30 to 90 seconds for waterflow switches. The delay prevents transient water surges from causing false alarms while still providing timely notification.

Question 22Codes, Standards, and Regulatory Framework

Which document is prepared and signed after a fire alarm system is installed to record that it meets the design and installation requirements?

  1. Fire safety plan
  2. Material Safety Data Sheet
  3. Certificate of occupancy
  4. Record of Completion Correct answer.

Explanation

NFPA 72 requires a Record of Completion to document the installed system, its features, and the qualifications of the installer. It is part of the acceptance process and supports future inspection and maintenance.

Question 23Codes, Standards, and Regulatory Framework

Smoke detector sensitivity must be checked within how long after installation, and then at what interval?

  1. 1 year, then every alternate year Correct answer.
  2. 6 months, then every year
  3. 2 years, then every 5 years
  4. 30 days, then every 6 months

Explanation

NFPA 72 requires smoke detector sensitivity to be checked within 1 year after installation and every alternate year thereafter. The test verifies that the detector remains within its listed sensitivity range.

Question 24Codes, Standards, and Regulatory Framework

A fire alarm system that sends signals to a supervising station owned and operated by the same property owner is classified as what type of system?

  1. Remote
  2. Auxiliary
  3. Central station
  4. Proprietary Correct answer.

Explanation

A proprietary supervising station is owned and operated by the same entity that owns the protected premises. It is distinct from central station, remote, and auxiliary arrangements.

Question 25Codes, Standards, and Regulatory Framework

In a cross-zoned smoke detection system, the general alarm is initiated when what occurs?

  1. The control panel is reset
  2. Any single detector detects smoke
  3. A manual pull station is operated
  4. Two zones both detect smoke Correct answer.

Explanation

Cross-zoning requires two detectors in different zones to operate before general alarm, reducing false alarms from a single detector. The arrangement is used where a single detector alarm could cause unnecessary disruption.

Question 26Codes, Standards, and Regulatory Framework

Which NFPA document is the primary standard covering the application, installation, location, performance, inspection, testing, and maintenance of fire alarm systems?

  1. NFPA 13
  2. NFPA 101
  3. NFPA 72 Correct answer.
  4. NFPA 25

Explanation

NFPA 72, the National Fire Alarm and Signaling Code, sets the minimum requirements for how fire alarm and signaling systems are designed, installed, located, tested, and maintained. It is the document adopted by reference for fire alarm work in New York City. NFPA 25, 101, and 13 address water-based suppression systems, life safety features, and sprinkler design respectively, not fire alarm system installation and testing.

Question 27Codes, Standards, and Regulatory Framework

In New York City, construction documents for a new fire alarm system must normally be reviewed and approved by which authority before installation?

  1. FDNY Bureau of Fire Prevention Correct answer.
  2. NYC Department of Environmental Protection
  3. NYC Department of Health and Mental Hygiene
  4. NYC Department of Buildings

Explanation

Fire alarm system plans and specifications are submitted to the FDNY Bureau of Fire Prevention, which reviews them against the Fire Code and referenced standards and issues the required approval before the system is installed and accepted. The Department of Buildings handles general building and electrical permitting matters, but the fire alarm technical review is a Fire Department function. The other listed agencies have no role in fire alarm plan approval.

Question 28Codes, Standards, and Regulatory Framework

Electrical wiring for a fire alarm system inside a building must comply with which article of NFPA 70, the National Electrical Code?

  1. Article 760 Correct answer.
  2. Article 250
  3. Article 300
  4. Article 725

Explanation

NEC Article 760, Fire Alarm Systems, governs the wiring methods, conductors, and circuit classification for fire alarm systems, including non-power-limited and power-limited fire alarm circuits. Article 725 covers remote-control, signaling, and power-limited circuits that are not part of a fire alarm system. Article 250 covers grounding and bonding generally, and Article 300 covers general wiring methods.

Question 29Codes, Standards, and Regulatory Framework

Spot-type smoke detectors are being laid out on a smooth, flat ceiling with no beams or obstructions. What is the maximum permitted spacing between detectors?

  1. 25 ft
  2. 45 ft
  3. 20 ft
  4. 30 ft Correct answer.

Explanation

On a smooth ceiling, NFPA 72 permits smoke detectors to be spaced up to 30 ft apart, which corresponds to a detector coverage area of about 900 sq ft per detector. The first detector must also be within 15 ft of any side wall, or half the listed spacing. Spacings larger than 30 ft exceed the listed coverage for spot-type smoke detectors.

Question 30Codes, Standards, and Regulatory Framework

Under NFPA 72, which of the following changes to an existing fire alarm system requires reacceptance testing of the system?

  1. Replacing a burned-out lamp in a notification appliance with an identical lamp
  2. Cleaning a dust-covered smoke detector during routine maintenance
  3. Adding devices and revising site-specific software Correct answer.
  4. Replacing the standby batteries with new batteries of the same rating

Explanation

Reacceptance testing is required whenever a system is modified in a way that can affect its operation, such as adding or relocating devices, changing the protection scheme, or revising the site-specific software. Routine maintenance activities that restore a component to its original condition do not trigger reacceptance testing. Battery replacement, detector cleaning, and lamp replacement are maintenance items covered by the normal inspection and testing program.

Question 31Fire Alarm System Types and Occupancy Classification

A building is used for the display and sale of retail merchandise to the public. In which occupancy group is the building classified?

  1. Group S
  2. Group M Correct answer.
  3. Group A
  4. Group B

Explanation

Group M covers mercantile occupancies, meaning buildings used for the display and sale of merchandise to the public. Group B is for offices and similar business uses, Group S is storage, and Group A is assembly. The occupancy group determines which fire protection features, including fire alarm systems, are required.

Question 32Fire Alarm System Types and Occupancy Classification

A fire alarm system transmits its signals to a supervising station that is owned and operated by the owner of the protected properties and that receives signals from several buildings under that same ownership. What type of system is this?

  1. An auxiliary system using a municipal circuit
  2. A remote station system reporting to a fire station
  3. A proprietary supervising station system Correct answer.
  4. A central station system serving many subscribers

Explanation

A proprietary supervising station is operated by the owner of the protected properties and receives signals from buildings under that same ownership. A central station is a listed commercial service serving unrelated subscribers, an auxiliary system transmits over a circuit derived from a municipal fire alarm system, and a remote station reports to a location such as a fire department.

Question 33Fire Alarm System Types and Occupancy Classification

A fire alarm system produces alarm, supervisory, and trouble signals only within the protected building and does not transmit any signal off the premises. What is this system called?

  1. A central station system
  2. A local system Correct answer.
  3. An auxiliary system
  4. A proprietary system

Explanation

A local system only annunciates alarm, supervisory, and trouble signals inside the protected premises. Systems that send signals off the property are classified by the type of supervising station that receives them, such as central station, proprietary, auxiliary, or remote station.

Question 34Fire Alarm System Types and Occupancy Classification

In an addressable fire alarm system, what allows the control unit to identify the particular device that has gone into alarm or trouble?

  1. The supervisory current level on the circuit
  2. A unique address assigned to each device Correct answer.
  3. The zone number recorded on the terminal strip
  4. The audible tone pattern sent by the device

Explanation

Addressable systems assign a unique address to each initiating and output device, so the control unit can report the exact device in alarm or trouble. Conventional systems instead report only the zone or circuit on which the condition occurred.

Question 35Fire Alarm System Types and Occupancy Classification

Notification in which the alarm signal is intended to be heard and seen by all occupants of the protected premises, including those in areas remote from the fire, is known as what?

  1. Supervisory mode
  2. Public mode Correct answer.
  3. Private mode
  4. Trouble mode

Explanation

Public mode notification is intended to alert all occupants throughout the protected premises, including people in areas away from the fire. Private mode is limited to specific areas or to staff, while supervisory and trouble are system conditions rather than occupant notification.

Question 36Fire Alarm System Types and Occupancy Classification

An occupancy in which six or more persons at any one time receive educational instruction through the 12th grade is classified in which occupancy group?

  1. Group I
  2. Group B
  3. Group A
  4. Group E Correct answer.

Explanation

Group E is the educational occupancy group, defined by use by six or more persons at any one time for educational purposes through the 12th grade. Group A is assembly, Group I is institutional, and Group B is business.

Question 37Fire Alarm System Types and Occupancy Classification

A new Group A-2 restaurant has a calculated occupant load of 260 people. Based solely on the assembly occupancy, is a fire alarm system required?

  1. No, because Group A-2 is exempt from all fire alarm requirements
  2. No, because the threshold is 300 occupants Correct answer.
  3. Yes, because any Group A occupancy requires a system
  4. Yes, because the occupant load exceeds 100

Explanation

Assembly occupancies require a fire alarm system when the occupant load reaches 300 or more. At 260 occupants the assembly use alone does not trigger the requirement, although another provision, such as the high-rise rules, could still require a system.

Question 38Fire Alarm System Types and Occupancy Classification

A Group B office building is three stories tall, is not a high-rise, and has a total occupant load of 550 spread across its floors. What is the effect of the occupant load on the fire alarm requirement?

  1. A system is required because the load is 500 or more Correct answer.
  2. Group B occupancies never require a fire alarm system
  3. A system is required only in buildings over four stories
  4. No system is required until the load reaches 1,000

Explanation

Group B occupancies require a fire alarm system where the occupant load is 500 or more, or where more than 100 occupants are located above or below the level of exit discharge. With 550 occupants the threshold is met and a system is required.

Question 39Fire Alarm System Types and Occupancy Classification

An office building is 12 stories and 150 feet tall. Which statement best describes its fire alarm requirement?

  1. A system is required only in the lobby and stairwells
  2. A system is required only if the occupant load exceeds 500
  3. A system is required because the building is a high-rise Correct answer.
  4. No system is required because the building is entirely sprinklered

Explanation

A building that qualifies as a high-rise, commonly 75 feet or more in height measured to the floor of the highest occupiable story, must have a fire alarm system. The requirement applies whether or not the building is sprinklered.

Question 40Fire Alarm System Types and Occupancy Classification

Which initiating device circuit style is arranged so that a single open conductor does not prevent alarm signals from devices beyond the break from reaching the control unit?

  1. Class B
  2. Non-supervised
  3. Coded
  4. Class A Correct answer.

Explanation

Class A circuits are supervised with a return path so that a single open or ground fault produces a trouble signal while every device stays connected and operable. Class B circuits are also supervised, but devices beyond a single open are lost from the circuit.

Question 41Fire Alarm System Types and Occupancy Classification

Which type of protected premises system connects the building's fire alarm system to a supervising station over a circuit derived from a municipal fire alarm system, typically through a shunt or trip arrangement?

  1. Auxiliary system Correct answer.
  2. Central station system
  3. Proprietary system
  4. Remote station system

Explanation

An auxiliary system transmits by connecting the protected premises to a supervising station through a circuit derived from a municipal fire alarm system. Proprietary, central station, and remote station systems use other transmission arrangements.

Question 42Fire Alarm System Types and Occupancy Classification

Which occupancy group covers hospitals and nursing homes where occupants receive medical or custodial care and are incapable of self-preservation?

  1. Group I-2 Correct answer.
  2. Group I-3
  3. Group R-1
  4. Group E

Explanation

Group I-2 covers institutional occupancies providing medical, surgical, psychiatric, nursing, or custodial care on a 24-hour basis to persons incapable of self-preservation. Group I-3 covers facilities where occupants are restrained or security measures prevent self-preservation.

Question 43Fire Alarm System Types and Occupancy Classification

A building contains a Group B office area and a Group A-2 restaurant with 320 occupants, and the two areas are separated from each other by the fire barriers required for separated occupancies. How are the fire alarm requirements applied?

  1. Only the Group B requirements apply because offices occupy more area
  2. Each separated occupancy is judged by its own group's rules Correct answer.
  3. Fire alarm requirements are based on the largest floor area only
  4. The whole building must meet the Group A requirements regardless of separation

Explanation

Where occupancies are separated by the fire barriers required for separated occupancies, each occupancy is evaluated against the requirements that apply to its own group. The Group A-2 area, at 320 occupants, exceeds the 300-occupant assembly threshold and would require a system for that area.

Question 44Fire Alarm System Types and Occupancy Classification

What distinguishes an emergency voice/alarm communication system from a simple horn-based notification system?

  1. It replaces manual pull stations
  2. It requires no audible notification
  3. It is permitted only in Group R occupancies
  4. It uses speakers to deliver voice messages Correct answer.

Explanation

An emergency voice/alarm communication system uses loudspeakers to deliver intelligible live or prerecorded voice messages and permits selective evacuation. Horns and similar appliances provide only a tonal signal.

Question 45Fire Alarm System Types and Occupancy Classification

A closed sprinkler control valve or low air pressure in a dry-pipe system is reported to the fire alarm control unit as which type of signal?

  1. A notification signal
  2. A trouble signal
  3. A supervisory signal Correct answer.
  4. An alarm signal

Explanation

A supervisory signal indicates an off-normal condition of supervised equipment, such as a closed sprinkler control valve or low air pressure in a dry-pipe system. Alarm signals indicate fire, trouble signals indicate an impairment of the system itself, and notification signals are the output to occupants.

Question 46Fire Alarm System Types and Occupancy Classification

In a Group R-2 apartment building, what smoke detection is required inside each dwelling unit?

  1. No detection if the unit has two exits
  2. Duct smoke detectors installed in every bedroom closet
  3. Heat detectors in the kitchen only
  4. Smoke alarms in sleeping rooms and nearby areas Correct answer.

Explanation

Dwelling units in Group R-2 occupancies require smoke alarms in each sleeping room and in the immediate vicinity of the sleeping areas, plus additional alarms where required on each story. These are typically single-station or interconnected alarms within the unit, in addition to any building-wide system.

Question 47Fire Alarm System Types and Occupancy Classification

In a high-rise building with a voice communication system, what is the principal advantage of a selective, or staged, evacuation sequence?

  1. It eliminates the need for a fire command center
  2. It allows the alarm to be silenced at the panel permanently
  3. It evacuates the fire area first, then other floors Correct answer.
  4. It removes the requirement for manual pull stations entirely

Explanation

Selective evacuation uses the voice system to move occupants in the fire area, and typically the floors above and below, before others are directed to leave. This limits stairway congestion and avoids evacuating an entire high-rise for a single-floor incident.

Question 48Fire Alarm System Types and Occupancy Classification

A building's fire alarm system transmits its signals to a fire department communication center over a dedicated leased telephone line that is neither a municipal fire alarm circuit nor a station operated by the property owner. This arrangement is best classified as what?

  1. An auxiliary system
  2. A remote supervising station system Correct answer.
  3. A central station system
  4. A proprietary supervising station system

Explanation

A remote supervising station system transmits signals to a dedicated supervising location such as a fire department communication center over means other than a municipal fire alarm circuit or a commercial central station. The classification turns on who owns and operates the receiving station.

Question 49Fire Alarm System Types and Occupancy Classification

A Group A-3 assembly with 300 occupants occupies the second floor of a building, and a Group B office with 400 occupants occupies the first floor. No fire barriers separate the two occupancies. Which statement best describes the fire alarm requirement?

  1. No system is required because each occupancy is below its threshold
  2. Only the office area must meet the Group B provisions
  3. The most restrictive occupancy requirements apply building-wide Correct answer.
  4. Each occupancy is evaluated separately as if in its own building

Explanation

Where occupancies are not separated by fire barriers, the requirements for the most restrictive occupancy apply to the entire building. Because the Group A-3 assembly has 300 occupants, it meets the assembly threshold and the required system must serve the whole structure.

Question 50Fire Alarm System Types and Occupancy Classification

An indoor swimming pool enclosure with spectator seating for viewing athletic events is classified in which occupancy group?

  1. Group A-3
  2. Group A-5
  3. Group A-2
  4. Group A-4 Correct answer.

Explanation

Group A-4 covers assembly occupancies for viewing indoor sporting events and activities with spectator seating, such as arenas and indoor pools with bleachers. Group A-3 covers similar recreation uses without spectator seating, A-2 is for food and drink consumption, and A-5 is for outdoor sporting events.