EPA 608 Type 2 Certifications EXAM 2025-2026 150
QUESTIONS AND ANSWERS
Which of the following are the indications for a high pressure system has a leak:
Both the options are correct
High superheat only
Oil traces only - answer>>>Both the options are correct
The EPA requires that all comfort cooling systems with more than 50 lb of refrigerant be repaired when
the annual leak rate exceeds _________ :
25%
10%
20%
15% - answer>>>15%
If Recovery or Recycling equipment was manufactured before 15 Nov 1993, Inches of Vacuum that
Recovery or Recycling Equipment Must Achieve from a High-Pressure Appliance (R-13, R-23, R-503) is:
10
15
4
0 - answer>>>0
Trace amounts of R22 can be used for carrying out pressure test in a refrigeration system:
True
False - answer>>>True
,If the sight glass is covered with ice which of the following is used to remove the ice:
Carbon dioxide
alcohol spray
Nitrogen
Forced air - answer>>>alcohol spray
Before transferring refrigerant into an empty refrigerant cylinder, the cylinder must be:
Cleaned with acidic solution
Evacuated
Cleaned with ammonia
Cleaned with alcohol - answer>>>Evacuated
Refrigerants built before 1950 often contains which of the following:
HNO3
Cl2
NO2
SO2 - answer>>>SO2
Heating the oil reduces the amount of refrigerant in the lubricating oil
True
False - answer>>>True
Which one of the following is not a hermetic compressors that is used most often:
,scroll compressor
Centrifugal compressor
reciprocating compressor
rotary compressor - answer>>>Centrifugal compressor
The _______ is installed to prevent any transient slugs of liquid from entering the compressor:
accumulator
Crank case
Filter drier
Recovery equipment - answer>>>accumulator
If a leak in an appliance makes the prescribed evacuation level unattainable, the appliance can be
evacuated to ________ :
0 psig
Greater than 0 psig
Lesser than 0 psig - answer>>>0 psig
If a moisture indicating sight glass is used in a refrigeration system, it would be located _______ of the
filter drier
Upstream
downstream - answer>>>downstream
The liquid receiver is part of the low side of the refrigeration system:
True
False - answer>>>False
, Which of the following is sprayed to remove the ice formation on the liquid line sight glass
Water
Liquid CO2
Liquid nitrogen
Alcohol - answer>>>Alcohol
The sale of CFC and HCFC refrigerants has been restricted to certified technicians since _________ :
Nov 14, 1994
Jan 1, 2005
Jan 1, 1995
Dec 31, 1994 - answer>>>Nov 14, 1994
When servicing an open refrigeration system, filter drier shall be always replaced:
True
False - answer>>>True
When evacuating a system, it is required that the vacuum pump pull a minimum of ________:
50 microns
500 microns
50,000 microns
5000 microns - answer>>>500 microns
A sensor and alarm are required for A1 (R-12, R-22) refrigerant as defined by ASHRAE is to sense
________:
QUESTIONS AND ANSWERS
Which of the following are the indications for a high pressure system has a leak:
Both the options are correct
High superheat only
Oil traces only - answer>>>Both the options are correct
The EPA requires that all comfort cooling systems with more than 50 lb of refrigerant be repaired when
the annual leak rate exceeds _________ :
25%
10%
20%
15% - answer>>>15%
If Recovery or Recycling equipment was manufactured before 15 Nov 1993, Inches of Vacuum that
Recovery or Recycling Equipment Must Achieve from a High-Pressure Appliance (R-13, R-23, R-503) is:
10
15
4
0 - answer>>>0
Trace amounts of R22 can be used for carrying out pressure test in a refrigeration system:
True
False - answer>>>True
,If the sight glass is covered with ice which of the following is used to remove the ice:
Carbon dioxide
alcohol spray
Nitrogen
Forced air - answer>>>alcohol spray
Before transferring refrigerant into an empty refrigerant cylinder, the cylinder must be:
Cleaned with acidic solution
Evacuated
Cleaned with ammonia
Cleaned with alcohol - answer>>>Evacuated
Refrigerants built before 1950 often contains which of the following:
HNO3
Cl2
NO2
SO2 - answer>>>SO2
Heating the oil reduces the amount of refrigerant in the lubricating oil
True
False - answer>>>True
Which one of the following is not a hermetic compressors that is used most often:
,scroll compressor
Centrifugal compressor
reciprocating compressor
rotary compressor - answer>>>Centrifugal compressor
The _______ is installed to prevent any transient slugs of liquid from entering the compressor:
accumulator
Crank case
Filter drier
Recovery equipment - answer>>>accumulator
If a leak in an appliance makes the prescribed evacuation level unattainable, the appliance can be
evacuated to ________ :
0 psig
Greater than 0 psig
Lesser than 0 psig - answer>>>0 psig
If a moisture indicating sight glass is used in a refrigeration system, it would be located _______ of the
filter drier
Upstream
downstream - answer>>>downstream
The liquid receiver is part of the low side of the refrigeration system:
True
False - answer>>>False
, Which of the following is sprayed to remove the ice formation on the liquid line sight glass
Water
Liquid CO2
Liquid nitrogen
Alcohol - answer>>>Alcohol
The sale of CFC and HCFC refrigerants has been restricted to certified technicians since _________ :
Nov 14, 1994
Jan 1, 2005
Jan 1, 1995
Dec 31, 1994 - answer>>>Nov 14, 1994
When servicing an open refrigeration system, filter drier shall be always replaced:
True
False - answer>>>True
When evacuating a system, it is required that the vacuum pump pull a minimum of ________:
50 microns
500 microns
50,000 microns
5000 microns - answer>>>500 microns
A sensor and alarm are required for A1 (R-12, R-22) refrigerant as defined by ASHRAE is to sense
________:
