CRC Quality Control & Inspection 2

Question 1

During a rough framing inspection, an inspector finds that wall studs are spaced at 24 inches on center but the plans specify 16 inches. What is the correct course of action?

Accepted Answer

Require the contractor to reframe to 16" OC per approved plans

Answer

Approved construction documents are legally binding, and work must conform to the approved plans; the inspector must require correction before approving.

Question 2

Which moisture content level is the maximum acceptable for dimensional lumber used in wall framing to prevent shrinkage and warping after installation?

Accepted Answer

19%

Answer

The IRC requires lumber used in framing to have a moisture content of 19% or less to minimize post-installation dimensional changes.

Question 3

A quality control checklist for concrete slab placement should verify that reinforcing steel has a minimum cover of how many inches from the bottom of the slab when the slab is cast against the ground?

Accepted Answer

3 inches

Answer

ACI 318 and the IRC require a minimum 3-inch concrete cover for reinforcing steel when concrete is cast against and permanently exposed to earth.

Question 4

What does a 'punch list' represent in residential construction quality control?

Accepted Answer

A list of incomplete or defective items identified near project completion

Answer

A punch list is a formal document compiled near substantial completion that itemizes deficiencies, incomplete work, or items not meeting specifications.

Question 5

An inspector notices that anchor bolts for a mudsill are embedded only 5 inches into the concrete foundation. The IRC requires a minimum embedment of:

Accepted Answer

6 inches

Answer

IRC Section R403.1.6 requires anchor bolts to be embedded a minimum of 7 inches into concrete foundations — wait, the correct IRC requirement is 7 inches.

(CRC) Certified Residential Contractor Practice Test

(CRC) Certified Residential Contractor Practice Test

CRC Quality Control & Inspection 2