The first thing to do before performing any line entry is _____.

a. clear and barricade an area to keep personnel safe
b. lock out and tag all electrical switches
c. manually activate mechanical devices
d. drain all materials from the pipeline


b. lock out and tag all electrical switches

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Why was the proposal for colonizing blacks back to Africa attractive to many whites, even as late as the onset of the Civil War? Why was the proposal for colonizing blacks back to Africa racist and highly discriminatory by many American blacks? Do you agree with this assessment that this proposal was underpinned by racism by whites against blacks?

What will be an ideal response?

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When a gasoline container is opened, the fumes will _____.

A. stay in the container B. spill over the neck and go to the floor C. rise into the atmosphere D. liquefy

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A(n) ____________________ provides details of the composition of a chemical, lists possible health and safety problems, and gives precautions for its safe use.

Fill in the blank(s) with the appropriate word(s).

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Outside elevations of a building include front, rear, and side elevations.

Answer the following statement true (T) or false (F)

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