The use of a coolant exchange machine is helpful in preventing ________ from entering the cooling system.
A) Oil
B) Hose residue
C) Excessive vibrations
D) Air
D) Air
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A concrete column 20 ft high shortens to 19 ft 11-1/2 in. under a load. Determine the strain in the column.
What will be an ideal response?
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_______________ digestion involves the decomposition of organic matter by methano bacteria in the absence of oxygen to produce biogas
Fill in the blank(s) with the appropriate word(s).
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Fruit trees are generally pollinated by _____
a. machines c. flowers b. insects d. people
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The three differant types od duct work insulation is ________, ___________, and __________.
Fill in the blank(s) with the appropriate word(s).
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