A major component of any foundation, concrete is a green material in all stages of its life span, from raw material production to demolition, making it a natural choice for sustainable home construction.
Answer the following statement true (T) or false (F)
True
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Extension and dimension lines are used to show _______ of an object.
Fill in the blank(s) with the appropriate word(s).
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Explain the three major pollutants that are regulated vehicle emissions and their sources.
What will be an ideal response?
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If a crew of masons is needed to lay 1,000 concrete blocks, and the estimator determined that two masons could complete the job in one eight-hour day, what is the estimated productivity rate for block laying?
a. 125 blocks per hour b. 62.5 blocks per hour c. 31.25 blocks per hour d. 16 blocks per hour
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Nipple chuck adapters are used for pipe nipples up to _____ inch(es) in diameter.
a. 1/2 b. 1 c. 1-1/2 d. 2
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