Compared to air conditioning evaporator coils, commercial refrigeration coils have:
A) Materials that are less brittle at low temperatures.
B) Fewer fins per inch.
C) More fins per inch.
D) About the same number of fins per inch.
B
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Because of the low pitch and the lack of surface texture, ____ roofs are usually outlined and left blank on drawings.
A. layered B. structured C. applied D. built-up
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How is B5 attached to B1?
Refer to Drawing Number 4190487 R0 and answer the following questions.
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Plugging low-pressure or negative-pressure lines requires _____ split tee fittings.
a. two b. three c. four d. five
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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
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