Paul Graham's suggestion to travel to New York and take high-resolution pictures for Airbnb customers was a scalable method for increased profitability.
Answer the following statement true (T) or false (F)
False
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Subcooling occurs in the evaporator as well as the condenser.
Answer the following statement true (T) or false (F)
When the evaporator on a low pressure chiller has a small leak
A) air leaks into the evaporator since it is in a vacuum B) an external application of leak tight adhesive will correct it C) refrigerant escapes slowly from the leak, reducing the charge D) it can be ignored because chillers hold a lot of refrigerant
Technician A says that if a PCV valve rattles, then it is okay and does not need to be replaced. Technician B says that if a PCV valve does not rattle, it should be replaced. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
The type of humidifier in which an electrical current is passed through water is _____
a. bypass b. gaseous phase c. electrode steam d. infrared