REFRIGERATION PRACTICE TEST QUESTION AND ANSWERS

Which is a disadvantage of a packaged indoor unit the potential for excessive noise exists Removing oil and filtering refrigerant for reuse is called recycle Which is the best description of temperature intensity of heat The type of head pressure control in a condenser that helps prevent drops in head pressure is the______ type fan cycling, condenser flooding, and damper control Which refrigeration system accessory is used to remove moisture, acid, and debris filter drier Nearly all electronic leaks detector use an element that is sensitive to halogenated gases All of the following are types of synthetic oil except a. esters b. naphthalenes c. alkylbenzenes d. glycols naphthalenes All of the following are used in cooling towers to spread the water for more efficient cooling except for a. fill material b. a distribution pan c. an expansion valve d. sprays an expansion valve The one major difference between a low-pressure chiller and a high-pressure chiller is the _____ system purge Which is most likely to cause low to no superheat thermostatic expansion valve overfeeding What does purging do in absorption machines