A(n) ____________________ is used to program most of the PLCs on the market today.
What will be an ideal response?
personal computer (PC)
personal computer
PC
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Describe the five categories of building constructions as classified by the IBC based on the types of materials used and their degree of combustibility.
What will be an ideal response?
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The conductors of a single phase are not permitted to be run in metallic conduit because ____ currents will be induced.
A. eddy B. series C. parallel D. superconducting
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Which of the following is a common lubricant?
A) Water B) Grease C) Steam D) Natural gas
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The main purpose of facing on fiberglass board used in cold service is to _____.
a. provide an attractive appearance b. provide abrasion resistance c. act as a vapor retarder d. reflect heat away from the insulation
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