EPA 608 CERTIFICATION CORE | QUESTIONS AND ANSWERS |
VERIFIED ANSWERS GRADED A+ | LATEST EXAM
Halons were completely phased out by ______ :
1994
1995
1987
2000 - √- CORRECT ANSWER -1994
Quiz :Recovered refrigerant is stored in which of the following painted tank:
Gray with yellow top
Yellow with gray top
Yellow with blue top
Blue with yellow top - √- CORRECT ANSWER -Gray with yellow top
Quiz :If your recovery unit does not have a sub-cooling feature recovery rate
will be _____ :
Recovery rate is independent
Slower
Faster - √- CORRECT ANSWER -Slower
Quiz :TXV valve maintaining the pressure difference between _____ and _____
of the system
Expansion valve, Evaporator
Condenser, Evaporator
,Compressor, Condenser
Evaporator, Compressor - √- CORRECT ANSWER -Condenser, Evaporator
Quiz :After recovering refrigerant from a sealed system, which of the following
gas is used to pressurize (for leak checking) or blow debris out of the system:
Hydrogen
Carbon dioxide
Oxygen
Nitrogen gas - √- CORRECT ANSWER -Nitrogen gas
Quiz :Which one of the following has highest Ozone Depletion Potential
(ODP):
HCFC
All will have same ODP
CFC
HFC - √- CORRECT ANSWER -CFC
Quiz :The ____connects the evaporator to the compressor in a refrigerant
system:
Suction Line
Evaporation Line
Discharge Line
Liquid Line - √- CORRECT ANSWER -Suction Line
Quiz :A violation of the Clean Air Act, including improper record keeping, is
subject to a penalty of a fine of up to _____ per day per violation:
$37,500
$40,000
,$24,000
$35,000 - √- CORRECT ANSWER -$37,500
Quiz :At which of the following stage in refrigeration cycle does the refrigerant
changes from high-pressure vapor to a high-pressure liquid:
Evaporator
Condenser
Compressor
Expansion valve - √- CORRECT ANSWER -Condenser
Quiz :Which of the following is not most effective way to detect the general
area of a small leaks:
fluorescent Indicator
Ultrasonic tester
All the options are correct
Electronic tester - √- CORRECT ANSWER -fluorescent Indicator
Quiz :During each vacuum decay test, it is observed that after creating the
vacuum, the pressure of the system increases to greater than 0 psig and stops at
some point, Then:
Leak could not be observed
Leak is observed but not refrigerant is trapped
None of the answers are correct
The refrigerant could be trapped in the system - √- CORRECT ANSWER -
The refrigerant could be trapped in the system
Quiz :Refrigerant cannot be called reclaimed unless it meets the ______ purity
standard:
ARI-700
, ARI-740
ARI-360
ARI-1024 - √- CORRECT ANSWER -ARI-700
Quiz :One chlorine atom in stratosphere can be able to destroy approximately
_______ number of ozone molecules:
100,000
10,000
1000
100 - √- CORRECT ANSWER -100,000
Quiz :It is to be ensured that the refrigerant recovery cylinder is not filled to
more than _____ of its capacity
90 percent
60 percent
50 percent
80 percent - √- CORRECT ANSWER -80 percent
Quiz :Only _____ refrigerant can be transferred or sold to another individual
Disposed
Reclaimed
Recovered
Recycled - √- CORRECT ANSWER -Reclaimed
Quiz :Lifetime of CFCs is believed to be in the range ______ :
Above 1000 years
5 to 10 years
VERIFIED ANSWERS GRADED A+ | LATEST EXAM
Halons were completely phased out by ______ :
1994
1995
1987
2000 - √- CORRECT ANSWER -1994
Quiz :Recovered refrigerant is stored in which of the following painted tank:
Gray with yellow top
Yellow with gray top
Yellow with blue top
Blue with yellow top - √- CORRECT ANSWER -Gray with yellow top
Quiz :If your recovery unit does not have a sub-cooling feature recovery rate
will be _____ :
Recovery rate is independent
Slower
Faster - √- CORRECT ANSWER -Slower
Quiz :TXV valve maintaining the pressure difference between _____ and _____
of the system
Expansion valve, Evaporator
Condenser, Evaporator
,Compressor, Condenser
Evaporator, Compressor - √- CORRECT ANSWER -Condenser, Evaporator
Quiz :After recovering refrigerant from a sealed system, which of the following
gas is used to pressurize (for leak checking) or blow debris out of the system:
Hydrogen
Carbon dioxide
Oxygen
Nitrogen gas - √- CORRECT ANSWER -Nitrogen gas
Quiz :Which one of the following has highest Ozone Depletion Potential
(ODP):
HCFC
All will have same ODP
CFC
HFC - √- CORRECT ANSWER -CFC
Quiz :The ____connects the evaporator to the compressor in a refrigerant
system:
Suction Line
Evaporation Line
Discharge Line
Liquid Line - √- CORRECT ANSWER -Suction Line
Quiz :A violation of the Clean Air Act, including improper record keeping, is
subject to a penalty of a fine of up to _____ per day per violation:
$37,500
$40,000
,$24,000
$35,000 - √- CORRECT ANSWER -$37,500
Quiz :At which of the following stage in refrigeration cycle does the refrigerant
changes from high-pressure vapor to a high-pressure liquid:
Evaporator
Condenser
Compressor
Expansion valve - √- CORRECT ANSWER -Condenser
Quiz :Which of the following is not most effective way to detect the general
area of a small leaks:
fluorescent Indicator
Ultrasonic tester
All the options are correct
Electronic tester - √- CORRECT ANSWER -fluorescent Indicator
Quiz :During each vacuum decay test, it is observed that after creating the
vacuum, the pressure of the system increases to greater than 0 psig and stops at
some point, Then:
Leak could not be observed
Leak is observed but not refrigerant is trapped
None of the answers are correct
The refrigerant could be trapped in the system - √- CORRECT ANSWER -
The refrigerant could be trapped in the system
Quiz :Refrigerant cannot be called reclaimed unless it meets the ______ purity
standard:
ARI-700
, ARI-740
ARI-360
ARI-1024 - √- CORRECT ANSWER -ARI-700
Quiz :One chlorine atom in stratosphere can be able to destroy approximately
_______ number of ozone molecules:
100,000
10,000
1000
100 - √- CORRECT ANSWER -100,000
Quiz :It is to be ensured that the refrigerant recovery cylinder is not filled to
more than _____ of its capacity
90 percent
60 percent
50 percent
80 percent - √- CORRECT ANSWER -80 percent
Quiz :Only _____ refrigerant can be transferred or sold to another individual
Disposed
Reclaimed
Recovered
Recycled - √- CORRECT ANSWER -Reclaimed
Quiz :Lifetime of CFCs is believed to be in the range ______ :
Above 1000 years
5 to 10 years
