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

The slump test measures the workability (consistency and fluidity) of fresh concrete by recording how much a standard cone of concrete settles after the mold is removed.

Question 2

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

Accepted Answer

A-A

Answer

A-A plywood has both faces graded 'A,' meaning they are smooth, paintable, and free of open defects, making it suitable for fine finish applications.

Question 3

What is the purpose of expansion joints in concrete flatwork?

Accepted Answer

To allow independent movement between sections and prevent cracking

Answer

Expansion joints separate concrete sections so each can expand, contract, and settle independently, preventing uncontrolled cracking from thermal and moisture movement.

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

Moisture-resistant gypsum board or cement backer board is required in wet areas because standard drywall deteriorates rapidly when repeatedly exposed to moisture.

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

A lower water-to-cement ratio reduces porosity and increases compressive strength and durability; excess water creates voids as it evaporates, weakening the matrix.

General Contractor License Practice Test

General Contractor License Practice Test

General Contractor License Materials and Methods of Construction 2