Exam (elaborations)
EPA 608 Universal Certificate Questions with Explanations of Answers | latest upate 2024
EPA 608 Universal Certificate Questions with Explanations of Answers | latest upate 2024
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EPA 608 Universal Certificate-15 Fahrenheit - ✅✅-What is the evaporation temperature of R-134a at 0
psig?
$44,539 per day per violation - ✅✅-What is the fine for violating the Clean
Air Act (as of 2017)?
✅✅
0. If a refrigerant does not contain chlorine and does not destroy ozone, it has
an ozone depletion potential (ODP) of 0. - -What is the least possible
ODP for a refrigerant?
1- ✅✅-Which class refers to a refrigerant that is not flammable at all?
10 inches of Hg vacuum - ✅✅-A technician has to make a major repair in an
appliance having 1000 pounds of R407C. He must evacuate the system to
which of the following levels?
A.
0 psig
B.
25 mm Hg absolute
C.
10 inches of Hg vacuum
D.
15 inches of Hg vacuum
10,000-50,000 - ✅✅-R-12 has a GWP in which of the following ranges?
100,000 - ✅✅-One molecule of chlorine can destroy how many molecules of
ozone?
1000-10,000 -✅✅-R-410a has a GWP in which of the following ranges?
110 psig - ✅✅-The risk of freezing while charging an R-410A appliance will
remain till from a vacuum level to a pressure of approximately;
,125.8 psig -✅✅ -What is the approximate pressure of a storage container of
R-404a that is stored at 60°F? Assume there are no impurities.
131 psig -✅✅ -What is the approximate pressure of a storage container of
R-22 that is stored at 75°F? Assume there are no impurities.
18 months - ✅✅ -How long do owners or operators of an appliance with a full
charge of 50 or more pounds of ozone-depleting refrigerant have to retire an
appliance if the replacement uses a refrigerant that is exempt from the venting
prohibition?
1995 -✅✅-In the United States, when were all CFCs phased out by?
2 - ✅✅-Which class refers to a refrigerant that has low flammability?
20% - ✅✅-Starting in 2019, what leak rate triggers the EPA requirement that
commercial refrigeration systems containing 50 pounds or more of R-22 be
repaired?
2020 - ✅✅-In the United States, when were R-22 and R-142b phased out?
2030 - ✅✅-In the United States, when will all HCFCs be phased out?
238 psig - ✅✅-What is the approximate refrigerant pressure of an R-410A
machine at 80 °Fahrenheit while the machine is idle?
25 Core questions
25 Type I questions
25 Type II questions, and
✅✅-For Universal Certification, you will
25 Type III questions.
This makes for 100 questions total. -
receive how many questions?
3- ✅✅-Ozone has ___ atoms of oxygen
3 years - ✅✅-For what period should an HVAC servicing company keep
records for a disposed appliance with a charge between 5 and 50 pounds?
,3 years - ✅✅ -How long must owners and operators of regulated appliances
normally containing 50 or more pounds of CFC refrigerant keep records of
leak inspections, initial leak verification and follow-up verification tests?
300,000 - ✅✅-Three molecules of chlorine can destroy how many molecules
of ozone?
5- ✅✅ -Up to how many pounds of refrigerant can Type I appliances
contain?
50 questions - 25 Core questions and 25 Type III questions - ✅✅ -If you
need to get Type III certification, which of the following will be on your exam?
70% - ✅✅-What is a passing grade for all EPA certifications?
A - ✅✅-Which class refers to a refrigerant with low toxicity?
A certified service technician is not available. - ✅✅-Which of the following
cannot be used as a reason to extend the appliance repair deadlines?
A.
Requirements of state regulations make the repair within 30 days impossible.
B.
A necessary component is not available.
C.
The appliance is located in a radiologically contaminated area.
D.
A certified service technician is not available.
A large vacuum pump is used for evacuation - ✅✅-Water present in the
system can freeze if;
A pungent smell - ✅✅ -Which of the following indicates a compressor
burnout in a sealed system?
A recovery cylinder used for HFC-134a - ✅✅ -You are servicing an appliance
that contains R-134a. Which of the following can you use to recover the
refrigerant?
, A.
A recovery cylinder used for HCFC-22
B.
A recovery cylinder used for HFC-134a
C.
A disposable cylinder used for R-134a
D.
A disposable cylinder used for R-22
Feedback
A straight piece of tubing - ✅✅-What does the process stub look like in small
appliances?
A technician with Section 608 certification,
A business that employs a technician with Section 608 certification - ✅✅-If
you are selling R-22 refrigerant, who can you sell to?
✅✅
A1 refrigerants have low toxicity and low flammability, making them the safest
to use. - -Which safety classification of refrigerants is most safe to use?
A2L - ✅✅-HFO refrigerants are this safety classification:
A3 refrigerants - ✅✅-Hydrocarbons are?
Absorb and reflect UV rays from the sun - ✅✅-What is the major function of
ozone in the stratosphere?
Absorb moisture readily - ✅✅-Hygroscopic oils ______
Access fittings -✅✅ -Need to be leak tested before recovering refrigerant
Are used to gain access to closed systems
Are used with window AC units
Accumulator - ✅✅-Which of the following component is located just before
the compressor?
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