Figure 1 shows the electrical symbol for a(n) _____.





a. diac

b. NPN transistor

c. PNP transistor

d. SRC


b. NPN transistor

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A(n) _____________________ takes the humidity out of air in a specific area.

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

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The biggest difference in the foundation for a commercial building and that for a small house is the thickness of the concrete and the amount of reinforcing ____.

A. cement B. asphalt C. steel D. hardwood

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Shop supplies would most likely be considered _______

A) Direct expenses B) Fixed expenses C) Variable expenses D) None of the above

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Materials with electrical characteristics that fall between those of insulators and conductors are considered _____.