Education > QUESTIONS & ANSWERS > EPA 608 study material including (Core, type 1, 2 and 3) Exam with complete solutions (All)

EPA 608 study material including (Core, type 1, 2 and 3) Exam with complete solutions

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a vacum pump should be connected - Answer- as far away from the pump as possible a high capacity vacuum pump and short, large diameter hoses will - Answer- dramatically reduce emissions, pressure d... rop, and evacuation/dehydration time ozone contains three - Answer- oxygen atoms one chlorine atom can destroy - Answer- 100,000 ozone molecules CFC's do not dissolve in water and do not breakdown into other compounds that dissolve in water - Answer- CFC's cannot be washed out of the lower atmosphere ODP - Answer- ozone depletion potential azeotrope - Answer- where the mixture behaves like a single chemical (new refrigerant) HFC's will not damage the ozone in the stratosphere - Answer- ... in 1992 the united states ordered the stoppage of all CFC production and importation after - Answer- December 31, 1995 according to the clean air act, no person installing, maintaining, repairing, or disposing of any appliance may knowingly vent or otherwise release into the environment and class 1 or class 2 substance after - Answer- July 1, 1992 class 1 - Answer- CFC class 2 - Answer- HCFC it became illegal to vent substitutes for CFC and HCFC refridgerants on - Answer- November 15, 1995 any device which contains and uses a class 1 or class 2 substance as a refridgerant and is used for household or commercial purpose. - Answer- appliance self contained recovery equipment type - Answer- Active system dependent recovery equipment type - Answer- Passive only section 609 certified technicians may buy CFC-12 in containers smaller than 20 pounds - Answer- ... who must ensure that all refridgerant has been recovered prior to disposal of any appliance - Answer- The final person in the disposal chain (scrap metal recycler, landfill owner, ect.) the removal of refridgerant in any condition - Answer- Recovery to clean refridgerant by oil seperation, non-condensable removal and single or multiple passes through replaceable filter-driers to reduce moisture, acidity and particulate matter - Answer- Recycling a complicated distillation process that returns recovered refridgerant to the purity of factory fresh refridgerant. - Answer- Reclaiming (ARI Standard 700) under no circumstance should different refridgerants be - Answer- mixed together Currently there is NOT a drop-in for CFC-12 - Answer- ... oils that are hygroscopic - Answer- Ester based (polyolesters) the alkylbenzene, use for some ternary blends - Answer- ... as a general rule, different lubricants should never be mixed - Answer- ... oxygen and oil when mixed can form an - Answer- extremely explosive mixture sight glasses can be cleaned with - Answer- alcohol spray before discarding a container the internal cylinder pressure should be reduced to at least - Answer- 0 psig recovery cylinders must be approved by - Answer- Department of Transportation (DOT) Refridgerant cylinders should never be filled above - Answer- 80% capacity refridgerant cylinders should always be stored - Answer- vertical or upright position with their valves at the top Service oses must be fitted with some type of low loss fitting - Answer- to prevent the loss of refridgerant for small appliances, this service port typically is a straight piece of tubing that is entered using a - Answer- Piercing access valve [Show More]

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epa 608 universal exam with complete solutions HVAC (EPA Certification Exam Section 608) Questions and Answers EPA 608 9th edition Questions and Answers (Graded A) EPA 608 Type 2 Practice exam wi...

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