To minimize interference, communication cables are run as close to the ____ conductor as possible.

A. positive phase
B. negative phase
C. triplen
D. neutral


Answer: D

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When the materials in a metallic piping system increase in temperature, the piping _____.

a. expands b. contracts c. vibrates d. sweats

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The length of the end pieces for a given radius is calculated by multiplying the center-to-center length by _____.

a. one-third b. one-half c. two-thirds d. two

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A drip loop's lowest point has a minimum vertical clearance of ____.

A. 9 ft B. 10 ft C. 11 ft D. 12 ft

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Two electricians work 6 hours each per day for 5 days. Find the total number of hours worked.

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

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