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

EPA Certification Exam |Questions and

Verified Answers| 100% Correct| Grade A

(Latest 2023/ 2024 Update)

Q: The Molecule found in the stratosphere that indicates stratospheric ozone depletion is taking

place is:

Answer:

Chlorine monoxide

Q: The following actions would violate the clean air act (CAA):

Answer:

Knowingly releasing Class 1 Class 2 substances

failing to keep or falsifying required records

failing to tech the required evacuation levels before opening a systems to the atmosphere for

service

Q: One time (disposable) refrigerant cylinders are used for:

Answer:

Virgin refrigerant

Q: The rule of thumb for refilling approved cylinders is a maximum of _____ percent liquid?

Answer:

80%

Q: The time it takes to properly evacuate and dehydrate a system prior to charging with

refrigerant is determined by the:

Answer:

Total volume of the system

Amount of non-condensibles (moisture) in the system

Ambient Temperature

Q: A system that fails to hold a vacuum after the evacuation process:

Answer:

May contain moisture

May have a leak

Q: To recover refrigerant is to:

Answer:

Remove refrigerant is any condition from a system in either an active or passive manner, and

store it in an external container without necessarily testing or processing.

Q: The process that reduces contaminate in used refrigerant by oil separation with single and

multiple passes through devices such as replaceable filter core driers, which reduces moisture,

acidity, and particulate matter is:

Answer:

Recycling

Q: The synthetic lubricant used with HCFC-based ternary blends is:

Answer:

Alkyl benzene

Q: R-134a is "drop-in" refrigerant for:

Answer:

R-134a is not a Drop-in refrigerant

Q: The refrigerant condition and state entering the condenser of an air conditioner is a:

Answer:

Superheated Vapor

Q: The condition and state entering the condenser of an air conditioner is a:

Answer:

Subcooled liquid

Q: The component of an air conditioning system that changes a low pressure vapor to a high

pressure vapor is the:

Answer:

Compressor

Q: Refrigerant cylinders should be shipped

Answer:

In the vertical upright position