What component cannot be flushed?
A) The compressor
B) The condenser
C) The receiver-drier
D) None of the above can be flushed
D) None of the above can be flushed
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Answer the following statement(s) true (T) or false (F)
1. Nonconductive optical fiber cables can be run in the same raceway or cable tray as Class 1 circuits. 2. Plastic optical fibers are a preferred choice in extreme temperatures. 3. Light travels in the form of an electromagnetic wave. 4. There is a difference between the index of refraction between the core and cladding of an optical fiber cable . 5. Loose-tube cable is more commonly used inside a building.
Where is a "direct vent" space heater installed?
A) Any place that still allows a vent pipe to run to the outside B) In an interior wall C) Typically they are free-standing in the room being heated D) In an exterior wall
Dividing a unit's cooling output in Btus during its normal annual usage period by the total energy consumed
during that same time determines _____. a. unit capacity b. HSPF c. SEER d. ARI rating
Which one of the five values shown on an NFRC window label is a measurement of how much light comes through a product?
A) U-Factor Rating B) Visible Transmittance C) Air leakage D) Solar Heat Gain