EPA 608 Core Practice Test

I have put together a 50 question EPA 608 core practice test that will test your current knowledge about the subject. All of these questions were created by me and will give you a good idea of the sort of questions you will get on the actual test. If you want more information regarding the EPA 608 certification then you can read my article about here.

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Other EPA Practice Tests

If you are interested in taking other EPA practice tests you can find them below:

Begin the Test

To get started, start answering the questions below. There are 50 total. Good luck!

Question #1: Each chlorine atom can destroy up to ____ Ozone molecules

Question #2: Which of the following refrigerants do NOT contain chlorine

Question #3: Which of the following is a CFC?

Question #4: Which of the following is a HCFC?

Question #5: Which of the following is a HFC?

Question #6: If you were to arrange the refrigerants in the decreasing order of Ozone Depletion Potential (ODP), it would look like:

Question #7: What is the effect of depleting ozone in stratosphere?

Question #8: The evidence of stratospheric ozone depletion ____

Question #9: CFCs were banned from being produced or imported into the US after:

Question #10: Recovery equipment must be certified by the EPA if it is manufactured after what date:

Question #11: As per the clean air act of 1992, Venting of refrigerants is prohibited during:

Question #12: A person supplying information about a technician intentionally violating the clean air act and venting refrigerants can be awarded up to:

Question #13: For violating the clean air act of 1992, a technician can be fined up to:

Question #14: The substitutes for refrigerants are NOT subject to clean air act and are therefore allowed to be vented:

Question #15: R-12 refrigerant can be substituted in a “drop-in” fashion with which of the following refrigerant?

Question #16: International treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion is

Question #17: The compounds controlled by Montreal Protocol include

Question #18: In a manifold gauge, the high pressure link is colored

Question #19: Yellow line in a manifold gauge can be connected to

Question #20: A recovery device which uses the components of the system it is recovering from is called

Question #21: Which of the following is not a valid way to recover refrigerant from a unit using a system dependent equipment?

Question #22: It is important to never mix refrigerants because

Question #23: The color coding of recovery cylinders is

Question #24: Recovery equipment manufactured after Nov 1993 must be certified by a(n)

Question #25: Before reselling a reclaimed refrigerant, it must

Question #26: HFC, like R-134a, works best with which type of lubricant?

Question #27: The tendency of different components of refrigerant blends like freon and a lubricant leaking at different rates, causing the overall mixture composition to change is called

Question #28: Refrigerant blends lead at different rated due to

Question #29: In the refrigeration cycle, high pressure vapor is converted to high pressure liquid in

Question #30: In the refrigeration cycle cooling occurs when

Question #31: _____ is when a refrigerant is removed and stored without testing or cleaning.

Question #32: _____ is when a refrigerant is removed and cleaned for reuse by separating oil and refrigerant

Question #33: To consider a refrigerant reclaimed, it has to meet

Question #34: R-22 mixes well with which of the following refrigerant?

Question #35: The speed of the recovery depends on

Question #36: How does temperature effect refrigerant recovery process?

Question #37: For the best recovery, the piping connection to the vacuum pump should be

Question #38: During system evacuation, it is recommended that the system vacuum gauge should be located:

Question #39: Which is the most preferred gas to use to check leaks?

Question #40: Why is it not advised to use oxygen or compressed air to leak check?

Question #41: When working with non-toxic refrigerants,

Question #42: The EPA 608 test is primarily focused

Question #43: Exposure to refrigerants is

Question #44: To service an area which has a large spill of refrigerants, it is necessary to use

Question #45: Which of the following is the most important safety precaution when using dry nitrogen from a portable cylinder to pressurize a system?

Question #46: A refillable cylinder must never exceed ____ of its capacity by weight?

Question #47: Any cylinder filled with refrigerant and used for transportation must be

Question #48: Refillable cylinders must be tested and date stamped every __ years.

Question #49: Before shipping, the cylinder’s labels must contain

Question #50: Refrigerant cylinders should be stored