The most common fan used for moving air through ductwork in residential air conditioning is:
A) Forward-curved centrifugal. B) Vane axial.
C) Backward-curved centrifugal. D) Propeller.
A
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A saw that mounts on the pipe and uses a reciprocating bow saw blade is called a(n) _____ saw.
a. abrasive b. circular c. guillotine d. back
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It was once thought that Dolly the cloned sheep was ____________________ more rapidly than normal
Fill in the blank(s) with correct word
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In order for combustion to occur, there must be _____
a. fuel, CO2, and ignition b. radiation, conduction, and convection c. fuel, oxygen, and aldehyde d. fuel, heat, and oxygen
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Recovery equipment for R-134a refrigerant must meet standards set by:
A) SAE B) UL/ETL C) EPA D) DOT
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