The top of an extension ladder:
A) Flush with the edge of the roof.
B) At least 12 inches above the point where it rests on the building.
C) At least 12 inches below the point where it rests on the building.
D) Should extend at least 36 inches above the point where it rests on the building.
D
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Which of the following is a mode of verbal communication?
a. Radios b. Hand signals c. Flags d. Flashing lights
Engineers follow certain steps when designing products and services. These steps include understanding the need for the product or service, doing the preliminary research, generating ideas for a solution, selecting the best idea, evaluating it in more detail and testing it, optimizing it if necessary, and presenting the final design.
a. True b. False
Which class of organic toxins is often intentionally applied to soils?
A) preservatives B) plasticizers C) pesticides D) refrigerants E) fuels
Federal interstate laws regulate the weight and size limits of all tractor-trailers.
Answer the following statement true (T) or false (F)