EPA 608 Type 1Exam Questions

EPA 608 Type 1Exam 2023/2024 Questions with Correct Answers A process stub is a _____.

• straight piece of tubing that is entered using a piercing access valve
• line located at least 3 inches below the compressor
• service valve installed at the factory
• stub to allow additional compressors to be connected in parallel - Correct Answer A) straight piece of

tubing that is entered using a piercing access valve A passive system0dependent recovery process _____.

• uses a pressurized container
• must still use a pressurized container but no pressure relief device is needed
• recovers refrigerant in a non-pressurized container
• needs a system with an operating compressor - Correct Answer C) recovers refrigerant in a non-

pressurized container If the refrigerant in a system is suspected to be contaminated, you can _____.

• turn the refrigerant in for reclamation
• vent the refrigerant because it cannot be recycled
• mix the refrigerant with nitrogen, call it a trace gas, leak check, and then vent it
• mix the refrigerant with virgin refrigerant to lower the contamination - Correct Answer A) turn the

refrigerant in for reclamation If you encounter a small appliance that is leaking, _____.

• you must repair the leak within 30 days
• you must document all attempts to repair the leak 1 / 3

• you do not have to repair the leak
• you must recover all remaining refrigerant and dispose of the appliance - Correct Answer A) you must

repair the leak within 30 days Solderless piercing valves should never remain permanently installed because they _____.

• violate EPA regulations
• violate SNAP regulations
• tend to leak over time
• trap lubricant and cause compressor failure - Correct Answer C) tend to leak over time

Low-loss fittings _____.

• can be either manually closed or automatically closed when disconnected to prevent loss of

refrigerant from hoses

• only leak small amounts of refrigerant during use
• are no longer required to be used because refrigerants are greener
• reduce oil losses during refrigerant recovery - Correct Answer A) can be either manually closed or

automatically closed when disconnected to prevent loss of refrigerant from hoses When a pungent odor is detected in the oil, _____.

• the refrigerant should not be recovered; instead vent it
• a compressor burnout has probably occurred
• it is POE oil
• All of the above - Correct Answer B) a compressor burnout has probably occurred
• it is POE oil
• All of the above

At high temperatures, CFC and HCFC refrigerants can decompose into _____. 2 / 3

• hydrazine gas
• phosgene gas
• hydrogen gas
• chlorine gas - Correct Answer B) phosgene gas

When a tank of mixed refrigerant is sent to a reclaimer, they can _____.

• refuse to accept the refrigerant
• charge extra for processing it
• vent the refrigerant
• either A or B - Correct Answer D) either A or B

CFC and HCFC refrigerants can decompose to from _____.

• boric acid
• sulfuric acid
• hydrochloric and hydrofluoric acids
• phosphoric acid - Correct Answer C) hydrochloric and hydrofluoric acids

HC refrigerant systems require permanent safety markings _____.

• on or near any evaporators and near any exposed refrigerant tubing
• near the machine compartment
• on the exterior of the refrigerator
• at all of the above locations - Correct Answer D) at all of the above locations

Low- and high-side access valves can be installed instead of a single access valve _____.

• to speed-up recovery
• / 3