The biggest safety hazard associated with working as an electrician is ____.

a. electrical shock
b. falling
c. slipping
d. fire


a. electrical shock

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What should an estimator do if he or she suspects that a specialty contractor’s bid is too high or too low?

What will be an ideal response?

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The "____" is the area of the form system that will be in contact with the concrete.

A. load area B. contact area C. support area D. form area

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If the number -5 is entered in a calculator followed by the (+/-) key what will be displayed on the calculator?

A. 1/5 B. 5 C. 5.5 D. -5

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?Besides HDPE, which material is commonly used in earth loop heat exchanger piping?

A. ?PEX B. ?APEX C. ?stainless steel  D. ?copper 

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