Portland cement plus lime (PCL) and sand are three particulate materials in mortar. In this mix, sand is three times that of PCL. Is this 3:1 relationship by weights of the materials or by their volumes?

What will be an ideal response?


Sand is approximately three times the quantity of PCL.

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When hands-on demonstrations or practice is not practical, you should _____.

a. skip over the portion of the training b. explain the procedure during the lecture c. use a simulator, video, or model d. cover the topic in a large group discussion

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What effect do ambient temperature and relative humidity have on dehumidifier capacity?

What will be an ideal response?

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In an inverting amplifier, the current through Rin and Rf is

A) zero B) out of phase C) equal D) flowing to virtual ground

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SCSI stands for syncronous communications standard interface

Indicate whether the statement is true or false

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