EPA 609 Technician Certification
EXAM QUESTIONS WITH DETAILED
VERIFIED ANSWERS / EXAM
QUESTIONS WILL COME FROM
HERE||100% CORRECT ANSWERS||A+
GRADED<<NEWEST VERSION>>
1. HFC-134a refrigerant has an Ozone Depletion Potential of: - ANSWER ✓ 0
2. T/F R-134a refrigerant has low solubility in non-polar lubricants -
ANSWER ✓ TRUE
3. Use of Carbon Dioxide (R-744) refrigerant results in a _________________
efficiency - ANSWER ✓ MUCH LOWER
4. R-134a disposable refrigerant cylinder ________________ color coded: -
ANSWER ✓ LIGHT BLUE
5. Disposable cylinder are manufactured to specifications established by: -
ANSWER ✓ DOT
6. Disposable cylinders are manufactured from: - ANSWER ✓ STEEL
7. Recovery cylinders are painted yellow in the shoulder area and
______________ down the side - ANSWER ✓ 12 INCHES
8. Moisture content in recycled R-134a (HFC-134a) that has been directly
removed from and intended to be returned to a mobile air-conditioning
system cannot exceed ________________ by weight - ANSWER ✓ 50 PPM
,9. T/F Technicians who repair or service HFC-134a MVACs must be trained
and certified by an EPA-approved organization - ANSWER ✓ TRUE
10.The sale of small containers of refrigerant under ________ including the one
pound cans are restricted to only people certified in Section 609 - ANSWER
✓ 20 lb
11.Average ozone construction in Earth atmosphere as a whole is only about
______________ parts per million - ANSWER ✓ 0.3
12.T/F Ozone layer is present in both Stratosphere and mesosphere layers of
earth atmosphere - ANSWER ✓ FALSE
13.Which of the following refrigerant has a molecular formula is C2H4F2: -
ANSWER ✓ R-152a
14.After reaching the required recovery vacuum on a system if the system
pressure _______ indicating that there is either refrigerant in liquid form
refrigerant trapped in the oil or a leak in the system - ANSWER ✓ RISES
15.T/F R-134a is a corrosive refrigerant - ANSWER ✓ FALSE
16.76. With the rising cost of refrigerant the value of the refrigerant stored in a
50lb. recovery tank is worth ____________________ the cost of a recovery
tank - ANSWER ✓ FIVE TIMES
17.77. T/F Used Cylinders can be recycled with other scrap metal - ANSWER
✓ TRUE
18.78. Refrigeration cylinders must be re-tested at ___________________
intervals - ANSWER ✓ FIVE-YEAR
19.79. Refrigerants may be mixed in recovery cylinders - ANSWER ✓ FALSE
20.80. On _______________________ the U.S. EPA enacted the provisions of
this agreement into regulations for the United States - ANSWER ✓ AUG 1,
1988
, 21.81. Persons servicing MVACs do not have this choice they must be certified
as ______________ MVAC technicians if they perform the AC service for
compensation - ANSWER ✓ SECTION 609
22.82. The AHRI standard now contains the new specification to limit
unsaturated impurities in HFC-134a to a maximum level of
__________________________ - ANSWER ✓ 40 PPM
23.83. One chlorine or bromine radical liberated has the capability to act as a
catalyst and breakdown _______________________ number of ozone
molecules in stratosphere: - ANSWER ✓ 100,000
24.84. Ozone in the Earth stratosphere is created by UV light striking
________________molecule - ANSWER ✓ OXYGEN
25.85. T/F Ozone at ground level is a harmful pollutant - ANSWER ✓ TRUE
26.86. HFC-152a MVAC systems are acceptable if MVAC systems must be
designed to avoid concentrations in the passenger cabin that are above
__________ for more than 15 seconds - ANSWER ✓ 3.7%
27.87. Chlorine reacts with ozone and converts ozone to: - ANSWER ✓
OXYGEN
28.88. The sale of small containers of refrigerant under __________including
the one pound cans are restricted to only people certified in Section 609 -
ANSWER ✓ 20 LB
29.89. Section 608 HVAC/R Technicians cannot buy refrigerant in quantities
less than ________________ - ANSWER ✓ 20 LBS
30.90. According to ____________ service shops must certify to the EPA that
they own approved recovery. - ANSWER ✓ CAA
31.91. Skin or eye contact with fluorocarbon refrigerants can result in -
ANSWER ✓ IRRITATION, FROSTBITE, DEATH
32.92. T/F Refrigerant are lighter than air: - ANSWER ✓ FALSE
EXAM QUESTIONS WITH DETAILED
VERIFIED ANSWERS / EXAM
QUESTIONS WILL COME FROM
HERE||100% CORRECT ANSWERS||A+
GRADED<<NEWEST VERSION>>
1. HFC-134a refrigerant has an Ozone Depletion Potential of: - ANSWER ✓ 0
2. T/F R-134a refrigerant has low solubility in non-polar lubricants -
ANSWER ✓ TRUE
3. Use of Carbon Dioxide (R-744) refrigerant results in a _________________
efficiency - ANSWER ✓ MUCH LOWER
4. R-134a disposable refrigerant cylinder ________________ color coded: -
ANSWER ✓ LIGHT BLUE
5. Disposable cylinder are manufactured to specifications established by: -
ANSWER ✓ DOT
6. Disposable cylinders are manufactured from: - ANSWER ✓ STEEL
7. Recovery cylinders are painted yellow in the shoulder area and
______________ down the side - ANSWER ✓ 12 INCHES
8. Moisture content in recycled R-134a (HFC-134a) that has been directly
removed from and intended to be returned to a mobile air-conditioning
system cannot exceed ________________ by weight - ANSWER ✓ 50 PPM
,9. T/F Technicians who repair or service HFC-134a MVACs must be trained
and certified by an EPA-approved organization - ANSWER ✓ TRUE
10.The sale of small containers of refrigerant under ________ including the one
pound cans are restricted to only people certified in Section 609 - ANSWER
✓ 20 lb
11.Average ozone construction in Earth atmosphere as a whole is only about
______________ parts per million - ANSWER ✓ 0.3
12.T/F Ozone layer is present in both Stratosphere and mesosphere layers of
earth atmosphere - ANSWER ✓ FALSE
13.Which of the following refrigerant has a molecular formula is C2H4F2: -
ANSWER ✓ R-152a
14.After reaching the required recovery vacuum on a system if the system
pressure _______ indicating that there is either refrigerant in liquid form
refrigerant trapped in the oil or a leak in the system - ANSWER ✓ RISES
15.T/F R-134a is a corrosive refrigerant - ANSWER ✓ FALSE
16.76. With the rising cost of refrigerant the value of the refrigerant stored in a
50lb. recovery tank is worth ____________________ the cost of a recovery
tank - ANSWER ✓ FIVE TIMES
17.77. T/F Used Cylinders can be recycled with other scrap metal - ANSWER
✓ TRUE
18.78. Refrigeration cylinders must be re-tested at ___________________
intervals - ANSWER ✓ FIVE-YEAR
19.79. Refrigerants may be mixed in recovery cylinders - ANSWER ✓ FALSE
20.80. On _______________________ the U.S. EPA enacted the provisions of
this agreement into regulations for the United States - ANSWER ✓ AUG 1,
1988
, 21.81. Persons servicing MVACs do not have this choice they must be certified
as ______________ MVAC technicians if they perform the AC service for
compensation - ANSWER ✓ SECTION 609
22.82. The AHRI standard now contains the new specification to limit
unsaturated impurities in HFC-134a to a maximum level of
__________________________ - ANSWER ✓ 40 PPM
23.83. One chlorine or bromine radical liberated has the capability to act as a
catalyst and breakdown _______________________ number of ozone
molecules in stratosphere: - ANSWER ✓ 100,000
24.84. Ozone in the Earth stratosphere is created by UV light striking
________________molecule - ANSWER ✓ OXYGEN
25.85. T/F Ozone at ground level is a harmful pollutant - ANSWER ✓ TRUE
26.86. HFC-152a MVAC systems are acceptable if MVAC systems must be
designed to avoid concentrations in the passenger cabin that are above
__________ for more than 15 seconds - ANSWER ✓ 3.7%
27.87. Chlorine reacts with ozone and converts ozone to: - ANSWER ✓
OXYGEN
28.88. The sale of small containers of refrigerant under __________including
the one pound cans are restricted to only people certified in Section 609 -
ANSWER ✓ 20 LB
29.89. Section 608 HVAC/R Technicians cannot buy refrigerant in quantities
less than ________________ - ANSWER ✓ 20 LBS
30.90. According to ____________ service shops must certify to the EPA that
they own approved recovery. - ANSWER ✓ CAA
31.91. Skin or eye contact with fluorocarbon refrigerants can result in -
ANSWER ✓ IRRITATION, FROSTBITE, DEATH
32.92. T/F Refrigerant are lighter than air: - ANSWER ✓ FALSE
