How many steps are required to calculate the heat necessary to change 10 lb of ice at -20°F to steam at 250°F?
A) One B) Three C) Two D) Six
D
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Particle density varies according to the type of ____________________ in the parent material and the
amount of organic matter in the soil.
Fill in the blank(s) with the appropriate word(s).
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On larger projects it is common for a material ____ system to be used to label the materials used.
A. planning B. keying C. indexing D. numbering
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V-belts require __________ lubrication
A. oil B. grease C. no D. graphite
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A man uses a 10 ft. lever to move a 500 lb. Stone. The man has to apply 100 lb. force to get the stone to move. What is the mechanical advantage?
What will be an ideal response?
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