Rac 40 quiz 1 - Study guides, Class notes & Summaries

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 2 Semester 1 Exam 2024. Boyle's law - CORRECT ANSWER P1 x V1 = P2 x V2 Dalton's law - CORRECT ANSWER Ptotal = Psubstance 1 + Psubstance 2 Charles' law - CORRECT ANSWER V1 / T1 = V2 / T2 Specific Volume - CORRECT ANSWER ft3/lb Hp - CORRECT ANSWER 33000 ft-lb/min Specific Gravity - CORRECT ANSWER no units Density - CORRECT ANSWER lb/ft3 1kW - CORRECT ANSWER 3413 Btu Work= - CORRECT ANSWER Force x Distance One watt of electrical energy is equal to - CORR...

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 2 Complete Study Guide Test 2024. Boyle's law - CORRECT ANSWER P1 x V1 = P2 x V2 Dalton's law - CORRECT ANSWER Ptotal = Psubstance 1 + Psubstance 2 Charles' law - CORRECT ANSWER V1 / T1 = V2 / T2 Specific Volume - CORRECT ANSWER ft3/lb Hp - CORRECT ANSWER 33000 ft-lb/min Specific Gravity - CORRECT ANSWER no units Density - CORRECT ANSWER lb/ft3 1kW - CORRECT ANSWER 3413 Btu Work= - CORRECT ANSWER Force x Distance One watt of electrical energy is equal t...

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...

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...