Types of humidifiers used with commercial air-handling equipment include:
A) Bypass, atomizing, and wetted media. B) Direct expansion, steam, and hot water.
C) Steam grid, steam pan, and direct water spray. D) Direct expansion, chilled water, and steam.
Question 2
Natural defrosting accomplished by:
A) Leaving the case fans operating and shutting off the compressor.
B) Shutting off the compressor and energizing electric defrost heaters.
C) Keeping the compressor running and bypassing hot gas to the condenser.
D) Keeping the compressor running and bypassing hot gas to the evaporator.
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Types of active transport into and out of cells.
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