What are the broad areas that commercial refrigeration equipment is grouped in based on the evaporator coil temperature?
A) Perishable frozen and perishable nonfrozen
B) High, medium, low, and cryogenic temperatures
C) Frosting, nonfrosting, and defrosting
D) Refrigerator and freezers
Question 2
Which type of humidifier needs to be cleaned more than once a year?
A) Evaporative B) Vaporizing C) Steam D) Atomizing