Rac 40 quiz 2 - Study guides, Class notes & Summaries

RAC 40 Quiz 6 Review | Latest Version | 2024/2025 | Graded A+ What is the primary purpose of the refrigerant in a cooling system? To absorb heat from the environment and transfer it elsewhere. What safety precaution should be taken when handling refrigerants? Always wear protective gloves and goggles to prevent skin and eye exposure. Why is it important to monitor refrigerant levels in a system? To ensure efficient operation and prevent compressor damage due to low refrigerant. ...

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 7 Review Study Guide 2024. When soldering, flux should be applied to ________. - CORRECT ANSWER C. The male part of the joint only The size indicated for the diameter of copper tubing used for plumbing is the approximate __________. - CORRECT ANSWER C. Inside dimension When joining steel pipe, ___________ should be applied to the threads before connecting. - CORRECT ANSWER A. Pipe dope The maximum temp. at which soft solder is done is __________. - CORRECT ANSWER D. 842...

RAC 40 Quiz 4 Review Questions | Latest Version | 2024/2025 | 100% Verified What is the main property of a refrigerant that allows it to change from liquid to gas? The main property is its low boiling point, which allows it to evaporate and absorb heat at low temperatures. What is a common environmental concern associated with certain refrigerants? Certain refrigerants contribute to ozone depletion and global warming. What is the difference between a CFC and an HFC refrigerant? ...

RAC 40 Quiz 7 Practice Study Guide Test 2024. When soldering, flux should be applied to ________. - CORRECT ANSWER C. The male part of the joint only The size indicated for the diameter of copper tubing used for plumbing is the approximate __________. - CORRECT ANSWER C. Inside dimension When joining steel pipe, ___________ should be applied to the threads before connecting. - CORRECT ANSWER A. Pipe dope The maximum temp. at which soft solder is done is __________. - CORRECT ANSWER D. ...

RAC 40 Quiz 7 Correctly Answered & Verified 2024. When soldering, flux should be applied to ________. - CORRECT ANSWER C. The male part of the joint only The size indicated for the diameter of copper tubing used for plumbing is the approximate __________. - CORRECT ANSWER C. Inside dimension When joining steel pipe, ___________ should be applied to the threads before connecting. - CORRECT ANSWER A. Pipe dope The maximum temp. at which soft solder is done is __________. - CORRECT ANSWER...

RAC 40 Quiz 6 Review - Questions and Answers When connecting stranded wire under a screw terminal (like a thermostat) what process should be used to ensure a secure and solid connection is obtained? Solder the end of the wire so all copper strands are binded together and no loose wires will fall out Nails are sometimes coated with zinc to protect them from corrosion True A wall anchor is a onetime fastener False A pin rivet must be installed in a properly sized, pre-drilled hole. True Perforat...

RAC 40 Quiz 7 Review - Questions and Answers When soldering, flux should be applied to ________. The male part of the joint only The size indicated for the diameter of copper tubing used for plumbing is the approximate __________. Inside dimension When joining steel pipe, ___________ should be applied to the threads before connecting. Pipe dope The maximum temp. at which soft solder is done is __________. 842 F If a technician needs 5/8" ACR for an installation and was located near only a plu...