EOPA REview

Of the following, which organization does not present safety information for workers?

• National Safety and Workers League

• National Institute for Occupational Safety and Health

• Underwriters Laboratory

• American National Standards Institute

A drawback of concrete is its ____.

• high maintenance

• fire resistance

• weight

• compressive strength

When mixing Portland cement, hydration is the process of ____.

• removing water from the mixture

• chemically combining the cement with water

• binding water to the aggregate

• adding additional water to cement paste

Concrete that has been exposed to freezing temperatures in the first 24 hours after placement has about ____ of the strength of similarly placed concrete that was not exposed to freezing temperatures.

• 15%

• 39%

• 50%

• 90%

Gold and copper are excellent conductors of electricity because atomically they each have a single ____ electron that is easily transferred across atoms.

• charged

• covalent

• neutral

• valence

A(n) ____ is often included in electric cable as bare, noninsulated conductor.

• insulator

• breaker

• neutral conductor

• ground conductor

A receptacle is a ____.

• quick way to break the hot wire of current flow

• convenient way to connect a load to a circuit

• fast way to divert electricity into a different branch

• convenient way to deliver electricity to a wire conductor

When a load is directly connected to the building circuit without an easy means of disconnecting it from the circuit, it is said to be ____.

The two bronze screw terminals on an SPST switch should be connected to a ____ conductor.

Which of the following would be considered a threaded fastener?

• A roofing nail

• A solid rivet

• A wing nut

• A blind rivet