The purpose of a cross-break on a sheet metal duct is to _____.

a. provide a means for connecting duct sections
b. reduce duct noise
c. make the duct more rigid
d. provide an attachment point for insulation


c. make the duct more rigid

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At the end of the first week of incubation, most of the chick's systems, like the lungs and nervous system, are developed

Indicate whether the statement is true or false

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Soluble organic N compounds are taken up by plants and are lost in leaching and runoff waters

Indicate whether the statement is true or false

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The output instruction ____________________ (sets, resets) the memory bit to a 0 when the rung condition goes ____________________ (true, false).

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

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Which type of switch controls multiple circuits?

A. Conventional B. Actuator C. Single pole D. Ganged

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