Because concrete is heavy, doing stretching exercises before working with it will help prevent _____
a. sore arms
b. leg cramps
c. strains and sprains
d. bruises
c
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The three phases of prenatal life are the gametes, the embryo and the fetus
Indicate whether this statement is true or false.
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Since the Earth's crust is cooler than the air during the summer, it can be used to accept air conditioning heat loads.
Answer the following statement true (T) or false (F)
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These can be used when a long object of constant shape throughout its length requires shortening.
A. Conventional breaks B. Conventional revolution C. Broken out section D. Removed section E. none of the above
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Which of the following are the most commonly used rigging materials?
A. Welded alloy steel chains. B. Wire ropes. C. Web slings. D. Shackles and hooks. E. All of the above
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