EPA Certification Exam (2023\/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A<\/p>\n\n\n\n
EPA Certification Exam (2023\/ 2024 Update)
Questions and Verified Answers| 100%
Correct| Grade A
Q: What is being done in the U.S. to stop damage to the stratospheric ozone layer?
Answer:
Phasing out the use of chlorofluorocarbons and hydrochlorofluorocarbons.
Q: How should disposable cylinders of CFCs, HCFCs, and HFCs be discarded?
Answer:
Recover all remaining refrigerant, render the cylinders useless and recycle the metal.
Q: In addition to fines and being required to appear in court, what penalty can be imposed on
service technicians who violate Clean Air Act provisions?
Answer:
They may lose their certification.
Q: For an appliance that uses a CFC, HCFC, or HFC refrigerant, which of the following
violates the prohibition on venting?
Answer:
Refrigerants emitted when cutting a line without properly evacuating the appliance.
Q: Which word applies to the process that returns refrigerant to new product specifications and
that requires chemical analysis?<\/p>\n\n\n\n
Answer:
Reclaim
Q: What synthetic lubricant is presently used with ternary blends containing HCFCs?
Answer:
Alkylbenzene (Page 8 (Bottom))
Q: How should refrigerant blends be charged?
Answer:
As a liquid.
Q: What units does a compound pressure gauge for the low side of the system measure pressure
in?
Answer:
PSIG and inches of mercury.
Q: Which process applies to cleaning refrigerant for immediate reuse by oil separation and
single or multiple passes through devices, like replaceable core filter driers, which reduce
moisture and acidity?
Answer:
Recycling
Q: Which of the following leak detection methods is considered to be to be the most effective
for locating the general area of a small leak?<\/p>\n\n\n\n
Answer:
Electronic or ultrasonic tester
Q: What should a technician do if they discover that some R-410A was added to an R-22
system?
Answer:
Recover the mixture in a separate recovery tank.
Q: What factor does NOT affect the speed of evacuation?
Answer:
The brand of micron gauge used.
Q: Which of the following is NOT a recommended safety practice when operating refrigerant
recovery or recycling equipment?
Answer:
Remain at least 5 feet away from any operating equipment.
Q: Refrigerant cylinders should be all of the following, EXCEPT:
Answer:
Filled to 95% of capacity.
Q: When transporting cylinders containing used refrigerant, DOT requires that you:
Answer:
Attach DOT classification tags.
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