Hort Quiz - Section 13

Concrete is a mixture of sand, gravel, water, and:

• Clay cement

• Finishing cement

• Finishing lime

• Portland cement

Mortar is a mixture of portland cement, sand, water, and:

• Aggregate

• Clay

• Finishing cement

• Finishing lime

The strength and durability of concrete are dependent upon the:

• Purity of water

• Proportion of stone particles by size

• Type of cement

• All of these

A concrete slab that is 6 inches deep by 10 feet wide by 20 feet long will contain:

• 2 cubic yards of concrete

• 2.5 cubic yards of concrete

• 3.7 cubic yards of concrete

• 5.0 cubic yards of concrete

Forms for concrete slabs are usually made of:

• 2” x 4”

• 2” x 8”

• 2” x 10”

• None of these

To prevent forms from sticking to the concrete, they are treated with:

• Fat

• Oil

• Paint

• Wax

Concrete is reinforced with:

• Air bubbles

• Aluminum wire

• Steer bars

• Wood fibers

Concrete is cured by:

• Covering with plastic

• Protecting from wind

• Sprinkling water

• All of these

A standard-sized block when laid will cover an area:

• 8" high by 16" long

• 4"high by 16" long

• 8" high by 12" long

• None Of These

Courses of block are laid in a straight line by using a:

• Center point

• Line

• Plumb bob

• Sighting tool