EPA Certification Exam (2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A

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?

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?

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.