What opportunity did the invention of the cotton gin open up for America?
What will be an ideal response?
It opened up the entire southern portion of the nation for cultivation of upland cotton.
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Explain how a guy derrick is used in multistory construction.
What will be an ideal response?
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What common crop (animal feed) contains a natural growth stimulant?
A) Alfalfa B) Wheat C) Marigolds D) Cactus
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A solid line indicates supply pipes and a ______________ line indicates return pipes.
A. circular B. curved C. dashed D. dotted
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A fractured axle shaft with a star-shaped fracture pattern indicates that the cause of the failure is related to:
A. bending stress B. torsional stress C. shock load D. lubrication failure
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