Use and Occupancy Classification Chapter 3

Questions and Answers

An institutional occupancy is typically considered Group ____

A Group ______ occupancy is the general classification for miscellaneous and utility structures.

Accessory religious educational rooms need not be considered separate occupancies where the occupant load is less than ______ occupants.

100

An accessory assembly area may be classified as a Group B occupancy where the floor area is a maximum of ______ square feet.

749 Signup and view all the answers

In a Group E middle school, an assembly area associated with the Group E shall be separated at what minimum level from the remainder of the school building?

no separation is required (considered same occupancy) Signup and view all the answers

Which of the following uses is typically considered a Group A-4 occupancy?

indoor hockey arena Signup and view all the answers

Which of the following uses is not considered a Group B occupancy?

convenience store Signup and view all the answers

The gaming floor of a casino shall be classified as a Group _____ occupancy.

A-2 Signup and view all the answers

Group ______ occupancy classification is to be assigned to a facility where combustible dusts are generated in a manner that creates a fire explosion hazard.

H-2 Signup and view all the answers

A foster-care facility providing care on a 24-hour basis to six or more infants/toddlers (2½ years of or less) is classified as a Group _______ occupancy.

E Signup and view all the answers

Prior to any permitted increases, the maximum allowable quantity per control area of Class IB flammable liquid permitted in a storage condition in a one-story Group F-1 occupancy is ____ gallons.

120 Signup and view all the answers

A facility used for supervised custodial care and housing more than 16 persons is classified as a Group _____ occupancy.

I-1 Signup and view all the answers

Which one of the following uses is not considered a Group M occupancy?

motor vehicle showroom Signup and view all the answers

A fraternity house with 40 occupants is considered a Group ______ occupancy.

R-2 Signup and view all the answers

Which one of the following facilities with 12 residents living in a supervised environment and receiving custodial would not be considered a Group R-4 occupancy?

detoxification facility Signup and view all the answers

Which of the following uses is not considered a Group S-2 occupancy?

stable Signup and view all the answers

A food processing establishment not associated with a restaurant or similar dining facility is classified as a Group B occupancy where it is a maximum of ______ square feet in floor area.

2500 Signup and view all the answers

A manufacturing facility utilizing highly toxic materials exceeding the maximum allowable quantities set forth in Table 307.1(2) is considered a _____ occupancy.

H-4 Signup and view all the answers

Aerosol storage buildings shall be classified as Group _____ occupancy when constructed in accordance with the International Fire Code.

S-1 Signup and view all the answers

Owner-occupied lodging houses are permitted to be constructed in accordance with the International Residential Code where there are a maximum of ______ guest rooms.

5 Signup and view all the answers

Where training and skill development use occurs in other than school or academic program, it is classified as a(n) Group ____ occupancy.

B Signup and view all the answers

A congregate living facility (transient) with an occupant load of 8 persons is to be classified as a Group _____ occupancy.

R-3 Signup and view all the answers

By definition, a transient dwelling unit or sleeping unit has a maximum occupancy period of _____ days.

30 Signup and view all the answers

Unless protected by an automatic sprinkler system, what is the minimum required fire separation between a 350-square-foot laundry room and the manufacturing building it is incidental to?

1-hour fire barrier and/or horizontal assembly Signup and view all the answers

What minimum level of incidental use protection is required for an incinerator room located in a manufacturing facility?

separation of two hours and an automatic sprinkler system Signup and view all the answers

What minimum level of incidental use protection is required for a chemistry laboratory/classroom in a high school?

either a 1-hour fire barrier/horizontal assembly or an automatic sprinkler system Signup and view all the answers

Where an automatic sprinkler system without a fire barrier is utilized for the protection of incidental use areas, what minimum level of separation is required?

construction capable of resisting the passage of smoke Signup and view all the answers

Aggregate accessory occupancies are limited to a maximum floor area of _____ of area of the story in which they are located.

10 percent Signup and view all the answers

Any accessory occupancy area classified as a Group ______ occupancy must always be separated by a fire barrier and/or horizontal assembly from other occupancy buildings.

H Signup and view all the answers

Where the provisions for nonseparated occupancies are used for a mixed-occupancy building, the most restrictive ____ requirements shall apply to the nonseparated uses.

Chapter 9 (fire protection) Signup and view all the answers

Where the provisions for separated occupancies are used for a nonsprinklered mixed-occupancy building, the minimum separation between a Group A-2 and Group B occupancy shall be a ____.

2-hour fire barrier/horizontal assembly Signup and view all the answers

Where the provisions for separated occupancies are used for a sprinklered mixed-occupancy building, the minimum separation between a Group H-2 and Group F-1 occupancy shall be a ____.

2-hour fire barrier/horizontal assembly Signup and view all the answers

Where the provisions for separated occupancies are utilized for a fully sprinklered building housing both a Group A-2 occupancy and a Group R-1 occupancy, the minimum required separation between the two occupancies shall be a ____.

1-hour fire barrier/horizontal assembly Signup and view all the answers

Under the provisions for separated occupancies, what is the minimum hourly fire-resistance-rated separation required between Group F-1 occupancy and a Group S-1 occupancy where located in a nonsprinklered building?

0 hours (no separation requirement) Signup and view all the answers

Study Notes

Institutional and Miscellaneous Occupancies

Institutional occupancy corresponds to Group I.
Group U occupancy is designated for miscellaneous and utility structures.

Accessory Occupancies and Assembly Areas

Accessory religious educational rooms can remain as one occupancy if the load is below 100 occupants.
Accessory assembly areas may be classified as Group B if the maximum floor area does not exceed 749 square feet.

Educational and Recreational Facilities

In a Group E middle school, assembly areas don't require separation from the main building.
Indoor hockey arenas fit under Group A-4 occupancy classification.

Commercial and Mixed Occupancies

A convenience store is not classified as Group B occupancy.
The gaming floor of a casino is categorized as Group A-2 occupancy.

Special Occupancy Classifications

Facilities generating combustible dusts create a fire hazard and fall under Group H-2.
A foster-care facility caring for six or more infants/toddlers fits into Group E occupancy.

Storage and Manufacturing Classifications

The maximum allowable quantity of Class IB flammable liquid in a one-story Group F-1 occupancy is 120 gallons.
Custodial care facilities for more than 16 persons are classified as Group I-1 occupancy.
Highly toxic material manufacturing facilities exceeding limits are classified as Group H-4.

Temporary and Accessory Occupancies

Fraternity houses with 40 occupants are designated as Group R-2 occupancy.
A detoxification facility with 12 residents is not classified as Group R-4.
Stables do not classify as Group S-2 occupancy.

Food Processing and Lodging

Food processing establishments not associated with dining are classified as Group B if floor area is up to 2500 square feet.
Owner-occupied lodging houses can build under the International Residential Code with a maximum of 5 guest rooms.

Training and Living Facilities

Training or skill development areas outside a school context are classified as Group B occupancy.
A transient living facility with 8 persons is categorized as Group R-3 occupancy.

Fire Separation and Protection

Transient dwelling units have a maximum occupancy period of 30 days.
Minimum fire separation for a 350-square-foot laundry room and an incidental manufacturing building is a 1-hour fire barrier.
An incinerator room needs a two-hour separation plus an automatic sprinkler system for protection.

Laboratories and Incidental Use Areas

Chemistry laboratories/classrooms require either a 1-hour fire barrier or an automatic sprinkler system.
Automatic sprinkler use without a fire barrier mandates construction that resists smoke passage.

Accessory Occupancy Limitations

Aggregate accessory occupancies can occupy up to 10% of the area's story.
Group H accessory areas must always be separated from other occupancies by a fire barrier.

Mixed Occupancy Separations

Non-separated occupancies follow the most restrictive Chapter 9 fire protection requirements.
Mixed-occupancy buildings must maintain a 2-hour fire barrier between Group A-2 and Group B when nonsprinklered.
A fully sprinklered building requires a 1-hour fire barrier between Group A-2 and Group R-1 occupancies.

Fire Resistance Ratings

Nonsprinklered buildings have no separation requirement between Group F-1 and Group S-1 occupancies, reflecting a zero-hour fire resistance rating.

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Test your knowledge on institutional occupancy classifications and related definitions with this chapter 3 flashcard quiz. Ideal for students studying building codes and safety regulations, these flashcards cover essential terms and their classifications.