An electric heating unit that utilizes ductwork to distribute the heated air is classified as a ____.
A. natural-convection heater
B. forced-convection heater
C. forced-draft conductor
D. radiant heater
Answer: B
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Three kinds of somatic variants within clones are identified as ________, ________, ________.
Fill in the blank(s) with the appropriate word(s).
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A flammable liquid's ____________________ is the temperature at which the vapors will ignite when brought into contact with an open flame.
Fill in the blank(s) with the appropriate word(s).
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Small engines require an outside source of power
Indicate whether the statement is true or false
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Green homes should aim for ____ ENERGY STAR or 2009 IECC in cold climates.
A. significantly lower U-factors than B. significantly higher U-factors than C. the same U-factors as D. slightly higher U-factors than
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