What is the name of the device, either analog or digital, that measures the activities of invisible

electrons and provides a visual interpretation of these activities?



a. photoconductive cell c. potentiometer or pot
b. rheostat d. electrical meter


ANS: D

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maintenance ____________________ is a list of maintenance tasks and their suggested time interval.

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

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The harmful effects of the expanding cities fell disproportionately on which group?

a. the young b. the poor c. the elderly d. the unmarried

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Suspended ceilings in residential construction are typically in ________

A) Finished basement areas B) Hallways C) Living rooms D) Bedrooms

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Corrosion is caused by _____

a. acids created by the combination of air and liquid b. viscosity that is too high c. pressure that is too high d. a low pour point

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