The United Nations Development Program estimates that the average American uses ____ gallons of water per day.
A. 39
B. 102
C. 152
D. 179
Answer: C
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There is a passage (either a hose or a designed-in passage) that allows the coolant to circulate when the coolant is cold and the thermostat is closed. This is called a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).
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In the accompanying figure, the item identified as number 9 identifies the ____ symbol.
A. tail B. arrowhead C. dimensions of weld D. root opening
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The two broad types of fan designs are:
A) Centrifugal and axial. B) Forced draft and induced draft. C) Forward-curved and backward-curved. D) Propeller and squirrel cage.
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The employer cannot petition OSHA at the state or federal level for a variance.