Concrete Estimating

Common uses of concrete include which of the following?

• Building foundations

• Food preservation

• Textile manufacturing

• Medical imaging

A reinforcing bar is commonly used for which purpose in concrete construction?

• To provide tensile strength

• To improve insulation

• To reduce weight

• To provide compression strength

Estimating how much the concrete will cost involves which of the following steps?

• Calculating the required volume and multiplying by the price per unit

• Guessing based on previous projects

• Using only the price of cement

• Ignoring the amount needed

Estimating the cost of a concrete pad involves which of the following?

• Calculating material, labor, and site preparation costs

• Only measuring the area of the pad

• Guessing based on previous projects

• Ignoring labor costs

A cost estimate in construction is:

• an assessment of the expected expenses for a construction project.

• a list of materials only for a construction project.

• a schedule of project deadlines.

• a record of completed work.

Concrete has high ______ strength, yet poor tensile strength. (Fill in the blank)

• compression

• shear

• torsion

• bending

What is the purpose of adding rebar to concrete?

• To increase compression strength

• To increase tensile strength

• To decrease weight

• To improve color

Concrete is sold by volume and measured in which unit?

• Square feet (ft²)

• Cubic yards (yd³)

• Gallons (gal)

• Pounds (lb)

Given a pad size of 16 ft x 18 ft floor with a thickness of 4 in., convert all dimensions to feet. What are the converted dimensions?

• 16 ft, 18 ft, 0.333 ft

• 16 ft, 18 ft, 4 ft

• 1.33 ft, 1.5 ft, 0.333 ft

• 16 ft, 18 ft, 0.25 ft

Calculate the volume in cubic feet for a pad with dimensions 16 ft x 18 ft x 0.333 ft.

• 96 ft³

• 72 ft³

• 120 ft³

• 85 ft³