The most 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. aluminum tube-aluminum fin
Answer: C
Trades & Technology
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Input accessories receive and transmit information to the logic section of the control, such as a relay or ____.
a. amplifier b. transistor c. contactor d. starter
Trades & Technology
_______________ loads are usually expressed in pounds per square foot (psf) and are recommended by various local, state, and national codes.
Fill in the blank(s) with the appropriate word(s).
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Bleeder screw wrenches are small 12-point box-end wrenches.
Answer the following statement true (T) or false (F)
Trades & Technology
The job of handling space needs when personnel are moved in and out of working spaces is referred to as _______________.