Rac 40 quiz 8 review - Study guides, Class notes & Summaries

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 8 Review - Questions and Answers After repairing a System that has had an electrical motor failure (compressor burnout) it is good field practice to re-use the recovered refrigerant in that system False Air entering a refrigerant system can eventually lead to compressor failure True The maximum recommended pressure for leak testing is 150 PSIG on the low pressure side of the system True While under a deep vacuum any liquid water under the oil in the motor compressor assembly can be...

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 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...