Building Trades Review

The builder's level consists of a_______to which a spirit level is mounted.

• telescope

• laser

• microscope

• compass

Optical levels are leveled by adjusting the.........

• focusing knob

• horizontal clamp screw

• leveling screws

• vertical clamp screw

The laser level rotates 360 degrees creating.......

• all points of light

• a level plane of light

• a nearly level line

• an elevation

46. The 3-4-5 method means that........

• if one side of triangle is 3 feet and the other side is 5 feet, the diagonal is 4 feet

• if the diagonal of a triangle is 3 feet, the sides are 4 feet and 5 feet respectively

• if the diagonal of a triangle is 4 feet, the sides are 3 feet and 5 feet respectively

• if one side of a triangle is 3 feet and the other side is 4 feet, the diagonal will be 5 feet creating a 90-degree corner

Concrete is a mixer of........

• portland cement, aggregate, and water

• grout, sand, and water

• mortar, grout, and water

• mortar, water, and gravel

In one cubic yard of concrete, there are.........

• 1 cubic foot

• 3 cubic feet

• 9 cubic feet

• 27 cubic feet

When steel bars are used to increase concrete's tensile strength, the concrete is then called.........

• tensile strong

• rebarred concrete

• strengthened concrete

• reinforced concrete

________hold the wall forms together at the desired distance apart.

• Walers

• Snap ties

• Plumbs

• Plates

55. Insulated concrete forms (ICF) are made of expanded polystyrene forming material which is ______thick.

• 2 inches

• 3 inches

• 4 inches

• 5 inches

For maximum savings on floors,...........

• 3/4" tongue-and-groove plywood is used over joists

• 5/8" plywood is used

• 2" thick oak boards are used

• metal is used