Rac 40 quiz 3 review - Study guides, Class notes & Summaries

RAC 40 Quiz 3 review with complete solutions

RAC 40 Quiz 3 Review Questions with Correct Answers (Already Graded A+) What is another word for flash gas? - Answer- Adiabatic expansion What is the meaning of THOR? - Answer- Total heat of rejection What will high discharge temperatures affect your compressor? - Answer- It will cause the oil temperature to rise and create acid. Acid will eat at the winding in the compressor and cause a short. Name the 4 positive displacement compressors. - Answer- Reciprocating, Rotary, Scroll, Scr...

RAC 40 Quiz 3 Review | Latest Update | 2024/2025 | 100% Pass What is the primary function of a refrigeration system? To remove heat from a designated area to lower the temperature of that area. What principle does a refrigeration cycle operate on? The principle of heat transfer, specifically using a refrigerant to absorb and release heat. What is the role of the compressor in a refrigeration system? To compress the refrigerant gas, increasing its pressure and temperature before it...

RAC 40 Quiz 3 Review Semester 1 2024. The _____ compressor is another positive displacement compressor and is used for larger air conditioning and refrigeration applications. - CORRECT ANSWER Screw Compressor The four (4) major components of a vapor compression refrigeration system are the compressor, condenser, evaporator, and ________ ______. - CORRECT ANSWER Metering device The amount of heat a refrigerant contains with -40F as the 0 heat content reference point is called - CORRECT...

RAC 40 Quiz 3 Review - Questions and Answers The _____ compressor is another positive displacement compressor and is used for larger air conditioning and refrigeration applications. Screw Compressor The four (4) major components of a vapor compression refrigeration system are the compressor, condenser, evaporator, and ________ ______. Metering device The amount of heat a refrigerant contains with -40F as the 0 heat content reference point is called Enthalpy From a performance standpoint, a sub...

RAC 40 Quiz 3 Review Semester 1 Exam 2024. The _____ compressor is another positive displacement compressor and is used for larger air conditioning and refrigeration applications. - CORRECT ANSWER Screw Compressor The four (4) major components of a vapor compression refrigeration system are the compressor, condenser, evaporator, and ________ ______. - CORRECT ANSWER Metering device The amount of heat a refrigerant contains with -40F as the 0 heat content reference point is called - CORREC...

RAC 40 Quiz 6 Review Questions and Answers Describe two types of staples and an example of their use. - Answer- U shape staple: used to secure low voltage wire Outward clinch tacker (bends staples outward): Used for securing installation around heating and cooling materials. What are two types of sheet metal screws? - Answer- self tapping, self drilling Name three types of fastening devices that can be used to mount an object to a hollow wall - Answer- 1. toggle bolt 2. wall anchor ...

RAC 40 Quiz 8 Review Questions with 100% Correct Answers What are some ways they can increase the productivity of the dehydration and evacuation process? list all you can think of - Answer- -purge system with nitrogen before pulling vacuum -heat up and kick compressors to get out all the moisture and oil from underneath -use copper tubing instead of vacuum hoses -make sure vacuum pump oil is new and vacuum pump When non condensables and moisture are left in a system hydrochloric and hy...

RAC 40 Quiz 7 Review | Latest Update | 2024/2025 | 100% Verified What is the key difference between soldering and brazing? Soldering occurs below 840°F, while brazing takes place at temperatures above 840°F. Why is flux used in both soldering and brazing? Flux removes oxides from the metal surface and prevents further oxidation during the heating process. What is the purpose of capillary action in brazing? Capillary action draws the molten filler material into the joint betw...