refrigeration practice test 2024 Questions With Correct Answers

Which is a disadvantage of a packaged indoor unit - ANS the potential for excessive noise exists Removing oil and filtering refrigerant for reuse is called - ANS recycle Which is the best description of temperature - ANS intensity of heat The type of head pressure control in a condenser that helps prevent drops in head pressure is the______ type - ANS fan cycling, condenser flooding, and damper control Which refrigeration system accessory is used to remove moisture, acid, and debris - ANS filter drier Nearly all electronic leaks detector use an element that is sensitive to - ANS halogenated gases All of the following are types of synthetic oil except a. esters b. naphthalenes c. alkylbenzenes d. glycols - ANS 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 - ANS an expansion valve The one major difference between a low-pressure chiller and a high-pressure chiller is the _____ system - ANS purge Which is most likely to cause low to no superheat - ANS thermostatic expansion valve overfeeding What does purging do in absorption machines - ANS removes noncondensables Which is false concerning azeotropic refrigerants a. they behave as pure compounds b. they act as on refrigerant in all conditions c. they are subject to fractionation d. they are a blend of multiple components - ANS they are subject to fractionation