Building Engineering Building Codes and Fire Safety 3

Question 1

What is the purpose of a smoke control system in a large atrium building?

Accepted Answer

To maintain a tenable environment at lower levels by exhausting smoke upward and away from egress paths

Answer

Atrium smoke control systems exhaust smoke at high level while introducing makeup air at low level, keeping the lower occupied zone clear long enough for evacuation.

Question 2

What does ADA require regarding accessible means of egress in multi-story buildings?

Accepted Answer

At least two accessible means of egress must be provided from each accessible floor, except in sprinklered buildings

Answer

IBC requires at least two accessible means of egress from every accessible floor, using accessible routes, exit stairways with areas of rescue assistance, or elevators.

Question 3

What is the purpose of the IBC construction type classification (Type I through V)?

Accepted Answer

To define the fire resistance of structural elements and whether materials must be non-combustible

Answer

Construction types define the fire-resistance requirements for primary structural frame, bearing walls, floor construction, and roof construction from fully protected non-combustible (Type I) to unprotected combustible (Type VB).

Question 4

What is a 'rated corridor' and what protection does it provide per the IBC?

Accepted Answer

A fire-resistance-rated corridor that separates tenant spaces to limit fire spread and protect the egress path

Answer

Rated corridors use fire-resistant walls and self-closing doors to slow fire spread from occupant spaces into the egress path, giving occupants more time to exit safely.

Question 5

What is the purpose of the IBC allowable area provisions for buildings?

Accepted Answer

To limit the floor area per story based on construction type and occupancy to control fire risk

Answer

Allowable area limits the fire compartment size to ensure fires remain manageable, with increases permitted for sprinklers, frontage, and multiple exits.

Building Engineering Practice Test

Building Engineering Practice Test

Building Engineering Building Codes and Fire Safety 3