General Contractor License Materials and Methods of Construction 2

Question 1

What does a concrete slump test measure?

Accepted Answer

Workability and consistency of fresh concrete

Answer

Compressive strength of hardened concrete

Answer

Air content of fresh concrete

Answer

Aggregate gradation of the mix design

Question 2

Which plywood grade designation indicates that both faces are sanded and free of open defects?

Accepted Answer

A-A

Answer

C-D

Answer

B-C

Answer

C-C

Question 3

What is the purpose of expansion joints in concrete flatwork?

Accepted Answer

To allow independent movement between sections and prevent cracking

Answer

To increase the load-bearing capacity of the slab

Answer

To provide a drainage channel for surface water

Answer

To improve the bond between the slab and subbase

Question 4

Which drywall type is required by code in areas exposed to high moisture, such as bathrooms and kitchens?

Accepted Answer

Moisture-resistant (green board) or cement backer board

Answer

Standard 1/2-inch Type X drywall

Answer

Regular 5/8-inch drywall

Answer

Foil-faced insulated drywall

Question 5

What is the correct water-to-cement ratio (w/c) guideline for producing durable, high-strength concrete?

Accepted Answer

Lower w/c ratios produce stronger, more durable concrete

Answer

Higher w/c ratios produce stronger concrete

Answer

The w/c ratio has no effect on concrete strength

Answer

A w/c ratio above 0.70 is required for workability without admixtures

Question 6

Which fire-resistance rating is typically required for a floor-ceiling assembly separating dwelling units in a two-family residential building?

Accepted Answer

1 hour

Answer

30 minutes

Answer

45 minutes

Answer

2 hours

Question 7

What is the function of flashing in a building assembly?

Accepted Answer

To direct water away from vulnerable joints and penetrations

Answer

To provide a decorative trim element at wall and roof intersections

Answer

To serve as a fire stop between combustible and non-combustible materials

Answer

To anchor roofing membranes against wind uplift