Explain how a desiccant wheel dehumidifier works
What will be an ideal response?
Desiccant wheel dehumidifiers use desiccants imbedded in a rotating wheel made out of a corrugated plastic material. As the wheel turns, the desiccant passes first through the incoming air where the desiccant adsorbs moisture from the air. Next, the desiccant passes through a regenerating zone where the desiccant is dried by the hot regenerating air.
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Food irradiation is the use of radiation to improve the taste of food
Indicate whether the statement is true or false.
The EPR valve is installed in the suction line at the evaporator outlet and it ____.
A. modulates the refrigerant vapor to the compressor B. prevents the boiling point in the evaporator from dropping below a pre-set point C. when used with a TX valve the system has the characteristics of maintaining a constant superheat and keeping the pressure from going too low D. All of the above.
All ____ receptacle outlets used in technical applications shall be GFCI protected.
A. 15- and 20-ampere B. 15- and 25-ampere C. 15- and 30-ampere D. 20- and 30-ampere
How many microns are there in an inch?
A) 1,000 B) 25,400 C) 2,500 D) 760,000