EPA CERTIFICATION EXAM 2024
ACTUAL EXAM COMPLETE 300
QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT
ANSWERS) / ALREADY GRADED A+
Which refrigerant(s) must be recovered before opening a
system or disposing of a system?
A) R-410A
B) R-407C
C) R-134a
D) all refrigerants must be recovered - ....ANSWER...D)
all refrigerants must be recovered
In a vapor compression refrigeration system, cooling
occurs when:
A) refrigerant liquid turns to a vapor.
B) refrigerant vapor turns to a liquid.
,C) the refrigerant is under maximum pressure.
D) the refrigerant gives off heat. - ....ANSWER...A)
refrigerant liquid turns to a vapor.
According to EPA regulations, which of the following is
procedures is not an approved technique for system
cleanup after a burnout?
A) installing a suction-line filter-drier
B) flushing with liquid refrigerant to clean tubing
C) triple evacuation
D) deep vacuum evacuation - ....ANSWER...B) flushing
with liquid refrigerant to clean tubing
Which of the following is an approved "drop-in" service
replacement for R-12?
A) HFC-134a
B) HFC-410A
C) R-407C
D) According to the EPA there are no "drop-in"
replacements - ....ANSWER...D) According to the EPA
there are no "drop-in" replacements
,When evacuating a system, the hoses should be:
A) orange in color for safety reasons.
B) as long as possible
C) smaller than vacuum pump inlet connection
D) equal to or larger than vacuum pump inlet connection. -
....ANSWER...D) equal to or larger than vacuum pump
inlet connection.
In a refrigeration system, the device that changes a low
pressure vapor to a high pressure vapor is the:
A) evaporator.
B) expansion device.
C) compressor.
D) condensor - ....ANSWER...C) compressor.
Of the refrigerants listed below, which types of refrigerants
will not damage stratospheric ozone?
A) CFCs
B) HCFCs
C) HFCs
, D) They all damage the ozone - ....ANSWER...C) HFCs
If a technician has a system where some R-502 was added
to an R-22 system. The technician should:
A) vent all the refrigerant.
B) recycle all the refrigerant.
C) recover all the refrigerant into a separate tank.
D) recover and reuse all the refrigerant in another system. -
....ANSWER...C) recover all the refrigerant into a separate
tank.
Which refrigerant contains a CFC?
A) R-500
B) R-410A
C) R-134a
D) R-123 - ....ANSWER...A) R-500
Which refrigerant is an HCFC?
A) R-22
B) R-134a
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 Charitywairimu. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $18.49. You're not tied to anything after your purchase.
