Infiltration is the term used when referring to the air entering a structure ____.

A. through an air make-up unit
B. around doors and windows
C. through ventilation
D. because of street traffic


Answer: B

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________: the rate of substitution or trade-off between two inputs in the production of a specific product.

Fill in the blank(s) with the appropriate word(s).

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In general terms, explain two ways that auxiliary contacts are used.

What will be an ideal response?

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After dogs and cats, the next most popular choice for household pets is:

A. birds B. fish C. small mammals D. amphibians and reptiles

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The part of an AC induction motor that turns is called:

A) The flywheel. B) The field. C) The rotor. D) The stator.

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