Which of the following is not a violation of refrigerant management regulations under the
clean air act?
: Servicing a system that uses CFCs or HCFCs after the phase of those
refrigerant
Which of the following refrigerants has the lowest global warming potential?
: R-600a
How does the globa...
1 | P a g e EPA TEST SC Exam | Questions & 100% Correct Answers (Verified) | Latest Update | Grad e A+ Which of the following is not a violation of refrigerant management regulations under the clean air act? 🗸🗸🗸 : Servicing a system that uses CFCs or HCFCs after the phase of those refrigerant Which of the following refrigerants has the lowest global warming potential? 🗸🗸🗸 : R-600a How does the global warming potential of R410A compare to carbon dioxide? 🗸🗸🗸 : It is thousands of times greater How does the global warming potentials of isobutane (R -600a), propane (R-290), and R-441A compare to the GWPs of HFC -134a, R -404A, and R -410A? 🗸🗸🗸 : They are significantly lower What is the state of refrigerant entering the compressor of a refrigeration system? 2 | P a g e 🗸🗸🗸 : Low pressure vapor/Superheated vapor Which Type of l ubricants are HFO refrigerants miscible in? 🗸🗸🗸 : POE lubricants What characteristic(s) of CFCs and HCFCs make them more likely to reach the stratosphere than most other compounds containing chlorine? 🗸🗸🗸 : They do not dissolve in water or easily brea k down in the atmosphere What does ozone depletion potential (or 'ODP') measure? 🗸🗸🗸 : The ability of a substance to destroy ozone in the stratosphere What characteristics of HFC refrigerants make them damaging to the environment? 🗸🗸🗸 : They can have very high global warming potentials Which of the following refrigerants contains chlorine? 🗸🗸🗸 : R-22 When working with an appliance containing HCFCs or HFCs, which of the following does NOT require a person to be a Section 608 ce rtified technician? 🗸🗸🗸 : Rewiring an external electric circuit 3 | P a g e A major system repair is being performed on an R -22 appliance. What CANNOT be done to recharge the appliance? 🗸🗸🗸 : Top off the unit with R -410A I'm which of the following scenarios can refrigerant be vented? 🗸🗸🗸 : Releasing isobutane from a household freezer What range is displayed on a high pressure gauge on a service manifold? a. 500 microns to 0 pis b. 0 to 200 psi c. 0 to 800 psi d. 250 psi to 750 psi 🗸🗸🗸 : C. 0 to 800 psi Why do EPA regulations require appliances to have a service aperture or process stub. a. To make it easier to recover refrigerant. b. To check for open motor windings. c. To vent non -condensibles. d. To dehydrate the system oil. 🗸🗸🗸 : A. To make it easier to recover refrigerant
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ExamArsenal. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
