True power, or watts, can be produced only when ____.

a. both current and voltage are either positive or negative
b. current is negative and voltage is positive
c. voltage is negative and current is positive
d. both current and voltage are zero


a. both current and voltage are either positive or negative

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A roster of three to five persons with whom you have worked and who can speak about your on-the-job performances in positive terms is called a professional _____ list.

a. resource b. reference c. reaction d. realization

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________ is the highest temperature at which germination occurs.

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

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An SRC is made from adjoining layers of semiconductor material in the _____.

a. PN arrangement b. PNP arrangement c. NPN arrangement d. PNPN arrangement

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A professional driver should be able to estimate all of the following EXCEPT:

A. time in any construction zones B. fuel requirements C. personal financial needs D. road conditions and weather

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