OBJ 4.1

Question 1

Building Height

Answer 1

The vertical distance from the grade plane to the average height of the highest roof surface.

Question 2

Primary Fire Protection Systems

Answer 2

Fire sprinklers, smoke-control systems, and smoke and heat vents.

Question 3

Audible Alarm Requirements

Answer 3

907.5.2.1 requires audible alarms to emit a distinctive sound, not used for any other purpose other than that of a fire alarm, and to be at least 15 decibels above the ambient sound, or 5 dBA above the maximum sound level.

Question 4

Exit

Answer 4

Portion of the means of egress system between the exit access and the exit discharge or the public way (e.g., stairwell between a corridor and a yard that is connected to a street).

Question 5

Draft-Stopping

Answer 5

Term used for the provision of materials or devices to restrict the movement of air within open spaces concealed in combustible construction, such as floors, ceiling cavities, and attics.

Question 6

Assembly Group A1 Occupancy

Answer 6

Assembly uses with fixed seating intended for viewing performing arts or motion pictures.

Question 7

Assembly Group A2 Occupancy

Answer 7

Assembly intended for food and drink consumption including banquet halls, night clubs, restaurants, and bars.

Question 8

Assembly Group A3 Occupancy

Answer 8

Other assembly uses not classified elsewhere in Group A. This includes but is not limited to worship, recreation, amusement, art galleries, courtrooms, libraries, museums, waiting areas in transportation terminals, and indoor pools.

Question 9

Assembly Group A4 Occupancy

Answer 9

Assemblies for activities intended for viewing indoor sports with spectator seating such as arenas, pools, skating rinks, and so on.

Question 10

Assembly Group A5 Occupancy

Answer 10

Assembly intended for participating in or viewing outdoor activities including stadiums, grandstands, and outdoor bleachers.

Question 11

Business Group B Occupancy Classification

Answer 11

The use of a building for office, professional, or storage use. Examples include a bank, carwash, post office, print shop, or animal hospital.

Question 12

Educational Group E Occupancy Classification

Answer 12

Use of a building by six or more people at a time for educational purposes through the 12th grade. Also includes educational supervision or personal care services for more than five kids older than two years of age.

Question 13

Accessory Occupancy

Answer 13

A space or room that is different than the main occupancy but doesn’t exceed 10% of the main occupancy floor area (e.g., a gift shop in a hospital).

Question 14

Fire Partition

Answer 14

A wall assembly with a one-hour fire resistance rating. Must provide a continuous barrier from slab to slab. Openings in fire partitions must have a minimum rating of 45 minutes, except corridors, which need 20-minute fire protection assemblies.

Question 15

Fire Barrier

Answer 15

Vertical or horizontal assembly designed to restrict the spread of fire or confine it to limited areas. This offers more protection than fire partitions.

Question 16

Fire Wall

Answer 16

Walls that extend from the building’s foundation through the roof to a parapet or to the underside of a noncombustible roof, and must have a fire rating of 2 to 4 hours. Reference IBC Chapter 706.

Question 17

Smoke Barrier

Answer 17

A continuous vertical or horizontal membrane with a minimum one-hour rating. The barrier is designed to resist the movement of smoke.

Question 18

Exit Access

Answer 18

The portion of the means of egress that leads to the entrance of an exit. This is where the travel distance is measured and regulated.

Question 19

Exit Discharge

Answer 19

The portion of the egress system between the exit termination and the public way.

Question 20

Dead End Corridor

Answer 20

A corridor without an exit at the end. The distance is limited to 20 feet in an unsprinklered building or 50 feet in a fully sprinkled building.

Question 21

Occupant Load Factor

Answer 21

Amount of floor area presumed to occupied by one person.

Question 22

Occupant Load

Answer 22

The number of persons for which the means of egress of a building or portion thereof is designed. Calculated based on the occupant load table in IBC, occupancy classification of building, and finished square footage of space.

Question 23

Common path of egress travel

Answer 23

The portion of an exit that all occupants travel until they get to a point of two separate and distinct paths of egress to different available exits. IBC limits the common path of egress travel from 75’ to 100’, depending on building occupancy group.

Question 24

Minimum width of stairways that are a part of an accessible means of egress?

Answer 24

44” with allowable handrail protrusions.

Question 25

Panic Hardware

Answer 25

Door hardware that is required in certain occupancy types (in all instances for Group H and for areas with 50 or more occupants in Group A and E) and will be listed in accordance with UL 305, according to IBC 2015. The hardware should be a push pad type and will open in the direction of egress when subjected to pressure.

Question 26

Framing Anchors

Answer 26

Any of the various sheet metal connectors for joining light wood frame construction members.

Question 27

Hurricane Anchors

Answer 27

A framing anchor for tying a rafter or truss to a wall plate; secures against lateral and uplifting forces; also called a hurricane tie.

Question 28

Joist Hanger

Answer 28

Sheet metal fastener used to provide support to a joist or beam and provide a strong connection.

Question 29

Holddown

Answer 29

A metal device for restraining a wood frame structure against uplift.

Question 30

Anchor Bolt

Answer 30

A bolt that is used to anchor a structure to concrete. Types include expansion, epoxy, l-bolts, and j-bolts.

Question 31

Factor of Safety

Answer 31

A ratio of structural capacity to actual applied load. Also called safety factor, it means there is a reserve strength built into the design of a structure.

Question 32

Welded Wire Mesh

Answer 32

A prefabricated grid of wires that are welded together. It is used in reinforced concrete construction.

Question 33

Toilet Wax Ring

Answer 33

Forms a seal between the discharge port of the toilet and the flange in the floor; prevents the toilet from leaking; must be replaced every time the toilet is taken up.

Question 34

Smoke Compartment

Answer 34

In health-care and penal occupancies, smoke compartments allow for defending in place. The area of a smoke compartment is limited to 22,500 SF. Smoke compartments are enclosed on all sides by smoke barriers.

Question 35

Defend in Place

Answer 35

Concept used in health-care and penal occupancies where people either can’t or shouldn’t exit on their own in the case of a fire.

Question 36

Fire Escapes

Answer 36

Are no longer allowed as a means of egress; older ones are grandfathered in.

Question 37

Common incidental uses that require fire separation or protection

Answer 37

• Furnace rooms with equipment over 400,000 BTU
• Boiler rooms with equipment over 15 psi or 10 hp
• Incinerator rooms
• Laundry rooms over 100 sf
• Paint rooms not classified as H occupancies and not located in an F occupancy
• Storage rooms over 100 SF in ambulatory care facilities or I-2 occupancies
• Waste and linen collection rooms over 100 sf in other than ambulatory care facilities or I-2 occupancies(from IBC Table 509)