By observing the direction of current flow through the circuit, voltage _____ can be determined.

A. drop
B. polarity


Answer: B

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= ____. Round to two decimal places.

A. 135.23 B. 137.41 C. 139.80 D. 144.61

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44.964 + 12.1 =

A) 56.1064 B) 56.965 C) 57.064 D) 56.064

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Common hand jointers have a length of _____

a. 18? b. 12? c. 6? d. 4?

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Which type of burner has the highest common operating percentage of CO2?

A) old-style gun burners B) flame-retention gun burner C) rotary wall flame burner D) newer-style gun burners

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