Which engineering controls might be used to reduce the risk of hearing loss on a job site?

A. Reducing noise at the source.
B. Reducing reverberation.
C. Reducing structure-borne vibration.
D. All of the above


D

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Air passes through a heat exchanger and loses 10° on the Celsius scale.  How much cooler is the return air if measured using a Fahrenheit thermomet?er?

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

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The documentation, called a design proposal, can consist of ____ design (CAD) drawings.

A. conventional architectural B. computer-actuated C. computer-aided D. conventional assessment

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Temporary guides used to support a straightedge when striking off concrete to the proper grade are called _____.