Recovery cylinders - Study guides, Class notes & Summaries

EPA Certification Exam (New 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Graded A QUESTION 1 What should a technician do if they discover that some R-410A was added to an R-22 system? Answer: Recover the mixture in a separate recovery tank. QUESTION What factor does NOT affect the speed of evacuation? Answer: The brand of micron gauge used. QUESTION Which of the following is NOT a recommended safety practice when operating refrigerant ...

EPA 608 study material including (Core, type 1, 2 and 3) questions and answers 100% pass a vacum pump should be connected as far away from the pump as possible a high capacity vacuum pump and short, large diameter hoses will dramatically reduce emissions, pressure drop, and evacuation/dehydration time ozone contains three oxygen atoms one chlorine atom can destroy 100,000 ozone molecules CFC's do not dissolve in water and do not breakdown into other compounds that dissolve in water CFC's c...

EPA Certification Exam (2023/ 2024 Update) Practice Questions and Verified Answers| 100% Correct| Graded A QUESTION A ternary blend is Answer: a three-part blend. QUESTION What type of oil does a ternary blend use? Answer: alkylbenzene QUESTION Which of the following is considered a "system-dependent" (passive) recovery? Answer: using the appliance compressor to remove refrigerant QUESTION Which of the following is considered a "self-c...

Why are flammable HFO refrigerants classified as A2L and not A2? - They have low flammability, being less flammable than HC refrigerants. Which of the following statements is true? - Propane cylinders for grilling contains impurities that refrigerant-grade propane does not have. Over-evacuation of a system can ________ - never occur; you can never pull too much air or other impurities from a system A system containing a flammable refrigerant must have the process tubes or service connec...

NFPA 10 Latest Update Rated A+ (SI) International System of Units 1 in=. mm 25.4 Approved Acceptable to the authority having jurisdiction. (AHJ) Authority Having Jurisdiction O rganization, office or individual responsible for enforcing requirements of a code or standard, or for approving equipment, materials, an installation or procedure. Shall Indicates a mandatory requirement. Should Indicates a recommendation or that which is advised but not required. Dry Chemical A po...

ODP test Questions and Answers 2023 Chlorofluorocarbon (CFC) refrigerants consist of: Chlorine, Fluorine, Carbon What causes a CFC molecule to break down once it reaches the upper atmosphere? Ultraviolet light The Ozone layer: Reduces ultraviolet radiation. Hydrochlorofluorocarbon (HCFC) refrigerants consists of: Hydrogen, Chlorine, Fluorine, Carbon. Which of the following refrigerants causes the least amount of damage to the ozone layer? R-134a Are there...

What characteristic or characteristics of CFCs make them more likely than other chlorine compounds to reach the stratosphere? - Dont disolve iin water Each chlorine atom in the stratosphere can destroy how many ozone molecules? - 100,000 ozone molecules Which refrigerant contains a CFC? R500, R12, R113 or R11? - Theyre all CFC's HYDROCHLORIC FLORICCARBON (HCFC) refrigerant contain? - Hydrogen, chlorine, flourine and carbon Which refrigerant is a chlorine free refrigerant? - HFC R 1...

EPA Certification Exam Prep (2023/ 2024 Update) Practice Questions and Verified Answers| 100% Correct| Grade A Q: What are 6 Type II appliances? Answer: 1.Walk-in coolers 2.Walk-in freezers 3.Reach-in refrigerators 4.Reach-in freezers 5.Residential & Commercial comfort cooling systems 6.Ice machines Q: To justify the cost increases of service to a customer, simply explain that ----- and required ---- to recover refrigerants in order to ----- and -----. Answer: you are b...

Medical Gases Latest Update with Verified Solutions Advantages of Bulk O2 storage systems -Although initially expensive to construct, they are far less expensive over the long term -They are less prone to interruption -They eliminate the inconvenience and hazard of transporting and storing of a large number of cylinders -Bulk O2 systems regulate delivery pressures centrally, thereby eliminating the need for separate pressure-reducing valves at each outlet -Finally, bulk systems oper...

EPA 608 Core Test Sample Questions | Latest Version | 2024/2025 | Already Passed Which type of recovery device is intended for use with appliances that have a refrigerant capacity of 15 pounds or less? - System-dependent units - Standalone units System-dependent units Is it allowed to use an open flame to warm refrigerant cylinders during the recovery process? - No - Yes Yes 2 Do shorter hoses result in a longer recovery time? - Yes - No No Are there s...