Which of the following compressors is NOT considered a positive-displacement compressor?

A) Rotary B) Screw C) Centrifugal D) Reciprocating


C

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International weld symbols fall into two principal categories: ____.

A. elementary and supplementary B. elementary and secondary C. primary and secondary D. elementary and non-elementary

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The majority of domesticated dogs are thought to have descended from the Gray wolf.

Answer the following statement true (T) or false (F)

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An AGM battery differs from a conventional flooded battery in what way?

A) Each cell has a voltage sensor. B) It does not contain lead. C) The electrolyte is absorbed into glass separator and will not spill. D) It does not contain electrolyte.

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To prevent the spread of smoke and fire, fire dampers are designed to close

A) all the time except when the system is operating B) using the NO contacts of the fire alarm relay C) automatically D) manually

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