In the United States, portland cement is packaged in bags holding 1 cubic foot and weighing _____.

a. 18 pounds
b. 46 pounds
c. 73 pounds
d. 94 pounds

d. 94 pounds

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What are relays?

What will be an ideal response?

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What are the characteristics of a newt?

What will be an ideal response?

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The sensor that MOST-Likely uses a beam of light to control the primary circuit is the:

A. Hall-effect sensor B. MR sensor C. photoelectric sensor D. crank angle sensor

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In the accompanying figure, item number 3 identifies ____ lines.

A. center B. hidden C. extension D. object

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