If blue litmus paper turns red when a water sample is tested, this indicates that the pH of the water is _____

a. above 7.0
b. between 10 and 14
c. neutral
d. below 7.0


d

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If steel is to be used, _____ of concrete is place, the steel is laid on the concrete, and then the remainder of the concrete is placed.

A. about 4" B. between 5" and 8" C. approximately 2" D. less than 3"

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To be successful, the most important barrier to overcome is the lack of ____________________ required to perform the job.

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

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Electromotive force is another term for ________.

A) Resistance B) Voltage C) Current D) None of these

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What term describes the movement of electrons from one atom to another?

A) Energy transfer B) Electricity C) Chain reaction D) None of these

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