Label the following furnace.


1 Down
2 Same
3 Up
4 Down
5 Down
6 Same

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Henry Clay embraced a program in 1824 called the American System which would create all of the following EXCEPT

A. a strong banking system. B. easy and abundant credit. C. a protective tariff to enable manufacturing to grow. D. a network of roads and canals for transporting foodstuffs, raw materials and manufactured goods nationwide. E. the constitutional right of individual states to nullify laws enacted by Congress that adversely affected their economic interests.

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In what year was API CJ-4 lube oil introduced?

A. 2004 B. 2006 C. 2007 D. 2010

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MERV filter rating system

A) Compares the airflow resistance of different filters when fully loaded B) Compares the arrestance value of 12 different ranges of particle size C) Compares the airflow resistance of different filters when they are new D) Compares the overall arrestance value of all sizes of particles

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If a technician wanted to accurately measure static pressure in a duct system, how would she place the sensing probe of the magnehelic gauge?

A) At the return grill inlet B) In line with the air flow C) At the supply register outlet D) Perpendicular to airflow

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