InterNACHI Structural Systems & Components 2

Question 1

What does a 'cathedral ceiling' configuration typically eliminate that affects roof structural design?

Accepted Answer

Attic space for a horizontal ceiling joist system

Answer

Cathedral ceilings remove the attic space, eliminating the horizontal ceiling joists that normally resist outward thrust from rafters, requiring alternative solutions like ridge beams or structural connectors.

Question 2

Which type of foundation wall crack is most indicative of differential settlement?

Accepted Answer

Diagonal stair-step crack in a masonry block wall

Answer

Diagonal stair-step cracks in masonry block walls typically indicate differential settlement, where one section of the foundation is moving more than another.

Question 3

What is the primary structural purpose of cross-bridging or blocking between floor joists?

Accepted Answer

To prevent lateral rotation and distribute loads between joists

Answer

Cross-bridging and blocking prevent lateral rotation (twisting) of floor joists and help distribute concentrated loads to adjacent joists.

Question 4

A home inspector observes that a load-bearing wall has been removed and a header installed. What additional concern should be noted if no posts are visible at the header ends?

Accepted Answer

The load may not be transferred properly to the foundation without adequate bearing posts

Answer

Header loads must be transferred down to the foundation through bearing posts or columns; missing posts mean the load path is interrupted and the structure may be compromised.

Question 5

Which condition in a wood-framed wall most significantly reduces its load-bearing capacity?

Accepted Answer

Large notches or holes cut in the middle third of studs

Answer

Large notches or holes cut into studs, especially near mid-height, dramatically reduce the stud's ability to carry vertical loads and resist buckling.

(InterNACHI) International Association of Certified Home Inspectors Practice Test

(InterNACHI) International Association of Certified Home Inspectors Practice Test

InterNACHI Structural Systems & Components 2