General Contractor License Materials and Methods of Construction 3

Question 1

Which wood treatment method is most effective for lumber used in ground-contact applications such as fence posts and deck footings?

Accepted Answer

Pressure-treated with preservative chemicals (e.g., CA, ACQ)

Answer

Surface-applied water repellent

Answer

Air-dried and sealed with linseed oil

Answer

Fire-retardant treated (FRT) lumber

Question 2

What does the R-value of insulation measure?

Accepted Answer

The material's thermal resistance to heat flow

Answer

The material's resistance to fire spread

Answer

The material's vapor permeability rating

Answer

The material's sound transmission class

Question 3

What distinguishes hot-mix asphalt (HMA) from cold-mix asphalt in paving applications?

Accepted Answer

HMA is mixed and placed at elevated temperatures, providing superior density and strength

Answer

HMA uses tar instead of bitumen as the binder

Answer

Cold-mix asphalt is stronger and used for primary roadways

Answer

HMA can only be used for parking lots, not roadways

Question 4

Which structural system transfers loads to the foundation through a series of joists, beams, and girders rather than load-bearing walls?

Accepted Answer

Post-and-beam (platform) framing

Answer

Balloon framing

Answer

Structural insulated panel (SIP) system

Answer

Tilt-up concrete panel system

Question 5

What is the purpose of a control joint (contraction joint) in a concrete slab?

Accepted Answer

To create a weakened plane that controls where shrinkage cracks occur

Answer

To reinforce the slab at high-stress locations

Answer

To allow differential settlement between adjacent slabs

Answer

To provide a waterproof seal between slab sections

Question 6

Which masonry unit is classified as a hollow concrete masonry unit (CMU) with a density typically less than 105 pcf?

Accepted Answer

Lightweight CMU

Answer

Dense aggregate block

Answer

Aerated autoclaved concrete (AAC) block

Answer

Clay brick

Question 7

According to ASTM standards, what minimum cure time is generally specified before testing concrete cylinder specimens for compressive strength?

Accepted Answer

28 days

Answer

3 days

Answer

7 days

Answer

14 days