CBI Structural Inspection & Safety 2

Question 1

What are common signs of structural distress an inspector should look for?

Accepted Answer

Cracks in foundation walls, sagging floors/rooflines, doors/windows that stick, and separated building components

Answer

Structural distress indicators include foundation cracks (especially horizontal or stair-step), uneven or bouncy floors, sagging rooflines, sticking doors/windows, and separation at joints between building components.

Question 2

What is a lateral force resisting system?

Accepted Answer

The structural elements (shear walls, bracing, moment frames) that resist horizontal forces from wind and earthquakes

Answer

Lateral force resisting systems include shear walls, diagonal bracing, and moment frames that transfer horizontal loads (wind, seismic) through the structure to the foundation, preventing building collapse or excessive movement.

Question 3

What is the purpose of a roof truss inspection?

Accepted Answer

To verify proper installation, bracing, connections, and that trusses have not been modified or damaged

Answer

Truss inspections verify correct placement, bearing, bracing, metal plate connector integrity, and that trusses have not been cut, drilled, or modified without engineer approval—modifications can cause catastrophic failure.

Question 4

What is a retaining wall and when does it require engineering?

Accepted Answer

A wall that holds back soil; typically requires engineering when exceeding 4 feet in height or supporting surcharge loads

Answer

Retaining walls resist lateral earth pressure. Most jurisdictions require engineered design for walls over 4 feet in retained height, walls supporting structures or driveways, and walls on slopes or with surcharge loads.

Question 5

What are the requirements for smoke detectors in residential construction per current codes?

Accepted Answer

Required in every bedroom, outside each sleeping area, on every level including basement, interconnected so all sound together

Answer

Current codes require interconnected smoke detectors in each bedroom, in hallways outside sleeping areas, and on every level of the home including the basement, ensuring occupants are alerted regardless of fire location.

CBI - Certified Building Inspector Practice Test

CBI - Certified Building Inspector Practice Test

CBI Structural Inspection & Safety 2