What is the purpose of the required auxiliary drain pan for attic installation of blower coil units?

A) To offset the negative pressure on the primary drain
B) To make changing the drain pan easier
C) To keep water from ruining the ceiling if the primary drain stops up
D) To provide faster condensate water drainage


C

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What components would be contained in a typical post-2007 exhaust gas aftertreatment system?

A. oxidizing catalytic converter B. diesel particulate trap C. muffler D. all of the above

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Of all the corn produced in the world, what percentage does the United States produce?

a. 25% c. 75% b. 50% d. 90%

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

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Even though the demand for service continues to grow, the one type of shop that is rapidly vanishing is _________

A) Tire store B) Service station C) Chain store D) All of the above E) None of the above

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