Exam (elaborations)
EPA EXAM (TYPE 1) QUESTIONS WITH CORRECT ANSWERS
- Course
- Institution
Exam of 3 pages for the course Enphase at Enphase (EPA EXAM (TYPE 1))
[Show more]
Content preview
EPA EXAM (TYPE 1)When checking for non-condensable inside a recovery cylinder known to contain only
one refrigerant, why should the technician allow the temperature cylinder to stabilize to
room temperature before taking a pressure reading? - answerComparisons to a
pressure-temperature chart are only valid if both the pressure and temperature of the
refrigerant are stable and known.
A passive system-dependant recovery process for small appliances; - answercaptures
refrigerant in a non-pressurized container.
Which of the following are recommended safe work practices when recovering
refrigerants? - answerWear safety eyewear and butyl-lined gloves when
connecting/disconnecting hoses.
When using nitrogen in repairing a sealed refrigeration system, what should the nitrogen
tank always be equipped with? - answerRegulator
Why should low and high side access valves be installed when recovering refrigerant
from a household refrigerator? - answerTo improve speed of recovery.
Any person who opens an appliance containing CFC, HCFC, or HFC for maintenance,
service, or repair must have at least one self-contained recovery machine avaiable for
use. The exception to this rule are persons working on; - answerSmall appliances
All appliances must be equipped with a service aperture or process stub which is used
when adding or removing refrigerant from the appliance. What Is typically used on small
appliances? - answerA straight piece of tubing that is entered using a piercing access
valve.
The sale of CFC, HCFC, HFC and HFO refrigerant to service or install refrigeration and
air conditioning equipment is; - answerlimited by law to HVAC contractors and/or
Mechanical Engineers.
After recovering refrigerant from a sealed system, if nitrogen is used to pressurize or
blow debris out of the system, the nitrogen; - answermay be vented to the ambient air.
What gases can CFC and HCFC refrigerants decompose into at high temperatures, (e g
, open flames, glowing metal surfaces, etc.)? - answerPhosgene gas
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 Dreamer252. 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.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81989 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now