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EPA 608 2023 Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution

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EPA 608 2023 Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution

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  • June 19, 2024
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EPA 608 2023
- ✅✅-
✅✅
After a major repair, appliance should be dehydrated and evacuated to what
level for HFC with POE systems - -500 microns


✅✅
Are hydrocarbon refrigerants approved for retrofitting existing household
refrigerators? - -no


✅✅
As of 2017, how much is the fine for knowingly violating the Clean Air Act? -
-$44,539 per day

At high temperatures, what can happen to CFCs and HCFCs? - ✅✅-they
can decompose into phosgene gas, hydrochloric and/or hydrofluoric acids

best method of charging for nameplate of 80 pounds - ✅✅-weight through
the liquid line service valve

By what standard must Recovery Equipment be tested? - ✅✅-AHRI
Standard 740

can you use propane tanks normally used for grilling? - ✅✅-no, they contain
impurities that can damage equipment

Current regulated refrigerants -✅✅-CFC, HCFC, HFC, HFO
Effects of ozone depletion on hand - ✅✅-skin cancer and cataracts

Examples of HCs - ✅✅-r-600a isobutane
r-290 propane

✅✅-compressor to metering device
High side of refrigeration -

household appliances with HC refrigerants require what? - ✅✅-permanent
safety markings

How are high pressure refrigerants classified? -✅✅ -Having a pressure
between 155 and 340 psig at a liquid phase temperature of 104° F
examples: HCFC-22, HFC-404A, HFC-410A

, How are low pressure refrigerants classified? - ✅✅ -Having a pressure of 30
psig or lower at a liquid-phase temperature of 104° F
examples: CFC-11, HCFC-123, HFO-1233zd

How are medium pressure refrigerants classified? - ✅✅-Having a pressure
between 30 and 155 psig at a liquid-phase temperature of 104° F
examples: CFC-12, HCFC-124, HCFC-409A

How are refrigerants identified -✅✅-By type (CFC, HCFC, HFC, etc.) and
ASHRAE number or with "R" plus the number

How are very high pressure refrigerants classified? - ✅✅-Having a pressure
over 340 psig at a liquid phase temperature of 104° F
example: C02

how can non condensible gas be checked for? - ✅✅-using a pressure
temperature chart

How do you measure a final system vacuum - ✅✅-with system isolated and
vacuum pump turned off

how does ASHRAE classify refrigerant - ✅✅-Flammability and toxicity
A1 being safest, B3 being least safe
Flammability: 1, 2L, 2, 3
Toxicity: A, B

How is GWP calculated - ✅✅ -Carbon dioxide is used as a baseline
measurement with a value of 1, which is compared to other gases

How is ODP measured - ✅✅ -it is the ratio of the impact on ozone of a
chemical compared to that of a similar mass of cfc-11


✅✅
how long does a technician have to make repairs if an HCFC leak is found in a
supermarket - -a 30 day window


✅✅
how long does the owner have to repair an appliance once the leak rate hits
threshold? - -30 days

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