A popular material combination used in air-conditioning evaporators and condensers is ____.

A. copper tube-stainless steel fin
B. copper tube-copper fin
C. copper tube-aluminum fin
D. stainless steel tube-aluminum fin


Answer: C

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Feed, veterinary supplies, bedding, and fuel are all examples of ____.

A. fixed costs B. net worth C. variable costs D. flexible costs

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The lower the welding current, the wider the weld bead, and the higher the welding current, the narrower the weld bead.

Answer the following statement true (T) or false (F)

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The bond between the hydrogen of one water molecule and the oxygen of another is called the

____________________ bond.

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

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The ground waves can also tilt the building as well cause the building to lift off the foundation

Answer the following statement true (T) or false (F)

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