Refrigeration esco - Study guides, Class notes & Summaries

ESCO Light Commercial Refrigeration EXAM with Complete Solutions.

ESCO Light Commercial Refrigeration EXAM 2024/2025 with Complete Solutions. In a dry type (direct expansion) evaporator, liquid refrigerant must boil away as close to the end of the coil as possible in order to: A. operate at high efficiency. B. ensure that frost does not accumulate. C. sub-cool the compressor. D. ensure proper oil return. - Answer - A. operate at high efficiency. The difference between the temperature of the refrigerant boiling in the evaporator and the temperature at the evapo...

ESCO Light Commercial Refrigeration EXAM

ESCO Light Commercial Refrigeration EXAM 2022

ESCO Light Commercial Refrigeration EXAM 2022

Heat ‘.which ‘.is ‘.added ‘.to ‘.a ‘.vapor ‘.after ‘.the ‘.change ‘.of ‘.state ‘.occurs ‘.is ‘.called ‘.- ‘.(correct ‘.answer) ‘.-superheat A ‘.refrigerant ‘.gives ‘.up ‘.heat ‘.when; ‘.- ‘.(correct ‘.answer) ‘.-it ‘.condenses it ‘.is ‘.desirable ‘.for ‘.refrigerant ‘.in ‘.the ‘.suction ‘.line ‘.to ‘.be ‘.slightly ‘.superheated ‘.in ‘.order ‘.to... ‘.- ‘.(corre...

ESCO Light Commercial Refrigeration EXAM Questions And Answers Rated A+. In a dry type (direct expansion) evaporator, liquid refrigerant must boil away as close to the end of the coil as possible in order to: - correct answer. The difference between the temperature of the refrigerant boiling in the evaporator and the temperature at theevaporator outlet is known as: - correct answer. An expansion device that is stuck open will cause: - correct answer. When measurin...

Heat which is added to a vapor after the change of state occurs is called superheat A refrigerant gives up heat when; it condenses it is desirable for refrigerant in the suction line to be slightly superheated in order to... ensure liquid refrigerant does not enter the compressor state of refrigerant in the suction line should be... low pressure/ low temperature vapor state of refrigerant entering the condenser is... high pressure/ highly superheated vapor the evaporator... Transfers heat...

ESCO Light Commercial Refrigeration EXAM

R-410A ESCO Practice Exam Study Guide With Verified Solutions. Polyester oils stored in plastic containers will: - answerAbsorbed moisture through the plastic R-407C has: - answerThe ability to fractionate A condensing unit designed for use with R-22: - answer* Must be replaced with a model designed for use with R-410A * Cannot withstand the higher pressure of R-410A In a refrigeration system, oil and refrigerant: - answerMix with each other Removal of refrigerant from a system can be a...