Modern hydraulic cements require certain safety precautions because they _____.

a. are acidic
b. give off noxious fumes as they set
c. produce steam as they cure
d. can cause caustic burns


d. can cause caustic burns

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Which of the following is used to clean masonry after construction?

a. muriatic acid b. tri-sodium phosphate c. wire brush d. all the above

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To girdle a plant stem is to completely remove the bark and cambium around a plant. This process is used in the method _____

A) tip layering B) natural layering C) air layering D) girdle

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The most common problem with chain drives is that the chains are not checked and ____________________ often enough.

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

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What kind of warranty covers every component of the vehicle?

What will be an ideal response?

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