EPA 608 Type 2 Exam Questions with Correct Answers 100% Verified Graded
A+ 2023/2024
Technicians maintaining, servicing, repairing or disposing of high pressure or very high-pressure appliances, except small appliances and MVAC, must be certified either as a Universal Technician or a ______ ___. - Correct Answer Type 2 After the installation of any type of system, the unit should be pressurized with _____ and _____ checked. - Correct Answer nitrogen leak Nitrogen is an ______ gas. - Correct Answer inert In order to determine the general area of a leak, technicians should use a _____ or _____ leak detector.
- Correct Answer electronic ultrasonic
After locating the general area of a leak, ______ ______ are used to pinpoint it. - Correct Answer soap bubbles A refrigeration unit using an open compressor that has not been used in several months is likely to leak from the rotating shaft ______. - Correct Answer seal During a visual inspection of any type of system, _____ of _____ are an indicator of a refrigerant leak. - Correct Answer traces oil Excessive ________, caused by a low refrigerant charge, is an indication of a leak in a high-pressure system. - Correct Answer superheat A low ______ _______ may be the cause of excessive superheat in a high-pressure system. - Correct Answer refrigerant charge Epa regulations require that all comfort cooling appliances containing more than _____ lbs. of refrigerant MUST be repaired when the annual leak rate exceeds _____ %. - Correct Answer 50 15 1 / 2
Epa regulations require that all commercial and industrial process refrigeration systems containing more than _____ lbs. of refrigerant MUST be repaired when the annual leak rate exceeds _____ %. - Correct Answer 50 35 Recovered refrigerants may contain _____, moisture, and oil. - Correct Answer acids Recovered refrigerants may contain acids, ______, and oil. - Correct Answer moisture Recovered refrigerants may contain acids, moisture, and ________. - Correct Answer oil Because of the acids, moisture, and oil that may be in recovered refrigerants, it is necessary to frequently check and change both the _____ and _____ on recycling machines. - Correct Answer oil filter Recycling and Recovery machines using ______ compressors may overheat when pulling a deep vacuum.
- Correct Answer hermetic
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Recycling and Recovery machines using hermetic compressors may overheat when pulling a deep vacuum because the unit relies on the flow of ______ through the compressor for ______. - Correct Answer refrigerant cooling Before using a recovery unit, you should always check the _______ _______ _______, the oil level of the unit, and evacuate and recover any remaining refrigerant in the unit's receiver. - Correct Answer service valve positions Before using a recovery unit, you should always check the service valve positions, the _____ _____ of the unit, and evacuate and recover an remaining refrigerant in the unit's receiver. - Correct Answer oil level Before using a recovery unit, you should always check the service valve positions, the oil level of the unit and evacuate and recover an remaining refrigerant in the unit's ________. - Correct Answer receiver