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EPA 608 TEST FINAL EXAM 2024 COMPLETE ACCURATE EXAM QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS) /ALREADY GRADED A+ //BRAND NEW!! $16.99
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EPA 608 TEST FINAL EXAM 2024 COMPLETE ACCURATE EXAM QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS) /ALREADY GRADED A+ //BRAND NEW!!
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  • EPA 608
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EPA 608 TEST FINAL EXAM 2024 COMPLETE ACCURATE EXAM QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS) /ALREADY GRADED A+ //BRAND NEW!!

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  • November 26, 2024
  • 51
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • EPA 608
  • EPA 608

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EPA 608 TEST FINAL EXAM 2024
COMPLETE ACCURATE EXAM
QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS)
/ALREADY GRADED A+ //BRAND NEW!!




Why could a recycling or recovery machine that uses
a hermetic compressor overheat when drawing deep
vacuums? - ....ANSWER...The motor relies on the flow
of refrigerant through the compressor for cooling


When evacuating the system the use of an oversized
vacuum could cause.... - ....ANSWER...Trapped water
to freeze


What is the best use for testing with soap bubbles? -
....ANSWER...Pinpoint refrigerant leaks


Which condition can cause excessive pressure on
the high side of a self contained (active) recovery
device? - ....ANSWER...When there is a large volume

,of non condensible gas in the refrigerant being
recovered


Why should the oil be removed from a low pressure
system at 130 degrees Fahrenheit? -
....ANSWER...Less Refrigerant will be contained in
the oil at the higher temperature


Your recovery/recycling machine has R-22
refrigerant in it. You now have to recover refrigerant
from an R-410a unit. What must be done before
recovery? - ....ANSWER...Change the recovery
cylinder on the recovery machine


A customer has an industrial process refrigeration
system that contains 1,000lbs of R-22 that has
exceeded the applicable leak rate threshold. How
often is the customer required to perform a leak
inspection? - ....ANSWER...3 Months


When an HFC system with POE oil has been opened
for a major system repair, what is the minimum
evacuation level that should be achieved before
charging the system? - ....ANSWER...500 microns

,Why are flammable HFO refrigerants classified as
A2L and not A2? - ....ANSWER...They have low
flammability, being less flammable than HC
refrigerants.


Which of the following statements is true? -
....ANSWER...Propane cylinders for grilling contains
impurities that refrigerant-grade propane does not
have.


Over-evacuation of a system can ________ -
....ANSWER...never occur; you can never pull too
much air or other impurities from a system


A system containing a flammable refrigerant must
have the process tubes or service connection
marked with a color marking that extends a
minimum of ________ in both directions -
....ANSWER...1 inch


Which additional safety precaution should be
followed when using flammable refrigerants? -
....ANSWER...Always make certain the recovery tank
and recovery unit are grounded before being used.

, Do not cut or weld any refrigerant line when
refrigerant is in the unit.


Which refrigerant can fractionate? - ....ANSWER...R-
407C


Before shipping any recovered refrigerant, you must
________ - ....ANSWER...properly label the refrigerant
containe


What gas is used as the baseline measurement for
GWP? - ....ANSWER...Carbon dioxide


What happens when EPA regulations change after a
technician is certified? - ....ANSWER...The technician
has a responsibility to keep up with changes in EPA
regulations


When shipping refrigerant cylinders, they should be
stored ________ - ....ANSWER...upright


Why is venting an "exempt refrigerant" legal? -
....ANSWER...Because the EPA has determined that

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