EPA 608 CERTIFICATION CORE/254 QU
m m m m
ESTIONS AND ANSWERS (A+) m m m
Halons were completely phased out by ______ :
m m m m m m m
1994
1995
1987
2000 - √Answer :1994
m mm m
Quiz :Recovered refrigerant is stored in which of the follo
m m m m m m m m m
wing painted tank:
m m
Gray with yellow top
m m m
Yellow with gray top
m m m
Yellow with blue top
m m m
Blue with yellow top - √Answer :Gray with yellow top
m m m m mm m m m m
Quiz :If your recovery unit does not have a sub-
m m m m m m m m m
cooling feature recovery rate will be _____ :
m m m m m m m
Recovery rate is independent
m m m
Slower
Faster - √Answer :Slower
m mm m
Quiz :TXV valve maintaining the pressure difference bet
m m m m m m m
ween _____ and _____ of the system
m m m m m m
Expansion valve, Evaporator m m
Condenser, Evaporator m
Compressor, Condenser m
Evaporator, Compressor - m m
√Answer :Condenser, Evaporator
mm m m
,Quiz :After recovering refrigerant from a sealed system,
m m m m m m m m
which of the following gas is used to pressurize (for leak c
m m m m m m m m m m m
hecking) or blow debris out of the system:
m m m m m m m
Hydrogen
Carbon dioxide m
Oxygen
Nitrogen gas - √Answer :Nitrogen gas
m m mm m m
Quiz :Which one of the following has highest Ozone Depl
m m m m m m m m m
etion Potential (ODP):
m m
HCFC
All will have same ODP
m m m m
CFC
HFC - √Answer :CFC
m mm m
Quiz :The ____connects the evaporator to the compress
m m m m m m m
or in a refrigerant system:
m m m m
Suction Line m
Evaporation Line m
Discharge Line m
Liquid Line - √Answer :Suction Line
m m mm m m
Quiz :A violation of the Clean Air Act, including improper r
m m m m m m m m m m
ecord keeping, is subject to a penalty of a fine of up to __
m m m m m m m m m m m m m
___ per day per violation:
m m m m
$37,500
$40,000
$24,000
$35,000 - √Answer :$37,500 m mm m
,Quiz :At which of the following stage in refrigeration cycle
m m m m m m m m m
does the refrigerant changes from high-
m m m m m m
pressure vapor to a high-pressure liquid:
m m m m m
Evaporator
Condenser
Compressor
Expansion valve - √Answer :Condenser m m mm m
Quiz :Which of the following is not most effective way to d
m m m m m m m m m m m
etect the general area of a small leaks:
m m m m m m m
fluorescent Indicator m
Ultrasonic tester m
All the options are correct
m m m m
Electronic tester - √Answer :fluorescent Indicator
m m mm m m
Quiz :During each vacuum decay test, it is observed that
m m m m m m m m m m
after creating the vacuum, the pressure of the system inc
m m m m m m m m m
reases to greater than 0 psig and stops at some point, Th
m m m m m m m m m m m
en:
Leak could not be observed
m m m m
Leak is observed but not refrigerant is trapped
m m m m m m m
None of the answers are correct
m m m m m
The refrigerant could be trapped in the system -
m m m m m m m m
√Answer :The refrigerant could be trapped in the system
mm m m m m m m m m
Quiz :Refrigerant cannot be called reclaimed unless it me
m m m m m m m m
ets the ______ purity standard:
m m m m
ARI-700
ARI-740
ARI-360
ARI-1024 - √Answer :ARI-700 m mm m
, Quiz :One chlorine atom in stratosphere can be able to d
m m m m m m m m m m
estroy approximately _______ number of ozone molecul
m m m m m m
es:
100,000
10,000
1000
100 - √Answer :100,000
m mm m
Quiz :It is to be ensured that the refrigerant recovery cylin
m m m m m m m m m m
der is not filled to more than _____ of its capacity
m m m m m m m m m m
90 percent
m
60 percent
m
50 percent
m
80 percent - √Answer :80 percent
m m mm m m
Quiz :Only _____ refrigerant can be transferred or sold to
m m m m m m m m m
another individual
m m
Disposed
Reclaimed
Recovered
Recycled - √Answer :Reclaimed m mm m
Quiz :Lifetime of CFCs is believed to be in the range ___
m m m m m m m m m m m
___ : m
Above 1000 years m m
5 to 10 years
m m m
100 to 500 years
m m m
20 to 100 years - √Answer :20 to 100 years
m m m m mm m m m m
Quiz :EPA has divided refrigerated appliances into _____
m m m m m m m
groups
m
Six
m m m m
ESTIONS AND ANSWERS (A+) m m m
Halons were completely phased out by ______ :
m m m m m m m
1994
1995
1987
2000 - √Answer :1994
m mm m
Quiz :Recovered refrigerant is stored in which of the follo
m m m m m m m m m
wing painted tank:
m m
Gray with yellow top
m m m
Yellow with gray top
m m m
Yellow with blue top
m m m
Blue with yellow top - √Answer :Gray with yellow top
m m m m mm m m m m
Quiz :If your recovery unit does not have a sub-
m m m m m m m m m
cooling feature recovery rate will be _____ :
m m m m m m m
Recovery rate is independent
m m m
Slower
Faster - √Answer :Slower
m mm m
Quiz :TXV valve maintaining the pressure difference bet
m m m m m m m
ween _____ and _____ of the system
m m m m m m
Expansion valve, Evaporator m m
Condenser, Evaporator m
Compressor, Condenser m
Evaporator, Compressor - m m
√Answer :Condenser, Evaporator
mm m m
,Quiz :After recovering refrigerant from a sealed system,
m m m m m m m m
which of the following gas is used to pressurize (for leak c
m m m m m m m m m m m
hecking) or blow debris out of the system:
m m m m m m m
Hydrogen
Carbon dioxide m
Oxygen
Nitrogen gas - √Answer :Nitrogen gas
m m mm m m
Quiz :Which one of the following has highest Ozone Depl
m m m m m m m m m
etion Potential (ODP):
m m
HCFC
All will have same ODP
m m m m
CFC
HFC - √Answer :CFC
m mm m
Quiz :The ____connects the evaporator to the compress
m m m m m m m
or in a refrigerant system:
m m m m
Suction Line m
Evaporation Line m
Discharge Line m
Liquid Line - √Answer :Suction Line
m m mm m m
Quiz :A violation of the Clean Air Act, including improper r
m m m m m m m m m m
ecord keeping, is subject to a penalty of a fine of up to __
m m m m m m m m m m m m m
___ per day per violation:
m m m m
$37,500
$40,000
$24,000
$35,000 - √Answer :$37,500 m mm m
,Quiz :At which of the following stage in refrigeration cycle
m m m m m m m m m
does the refrigerant changes from high-
m m m m m m
pressure vapor to a high-pressure liquid:
m m m m m
Evaporator
Condenser
Compressor
Expansion valve - √Answer :Condenser m m mm m
Quiz :Which of the following is not most effective way to d
m m m m m m m m m m m
etect the general area of a small leaks:
m m m m m m m
fluorescent Indicator m
Ultrasonic tester m
All the options are correct
m m m m
Electronic tester - √Answer :fluorescent Indicator
m m mm m m
Quiz :During each vacuum decay test, it is observed that
m m m m m m m m m m
after creating the vacuum, the pressure of the system inc
m m m m m m m m m
reases to greater than 0 psig and stops at some point, Th
m m m m m m m m m m m
en:
Leak could not be observed
m m m m
Leak is observed but not refrigerant is trapped
m m m m m m m
None of the answers are correct
m m m m m
The refrigerant could be trapped in the system -
m m m m m m m m
√Answer :The refrigerant could be trapped in the system
mm m m m m m m m m
Quiz :Refrigerant cannot be called reclaimed unless it me
m m m m m m m m
ets the ______ purity standard:
m m m m
ARI-700
ARI-740
ARI-360
ARI-1024 - √Answer :ARI-700 m mm m
, Quiz :One chlorine atom in stratosphere can be able to d
m m m m m m m m m m
estroy approximately _______ number of ozone molecul
m m m m m m
es:
100,000
10,000
1000
100 - √Answer :100,000
m mm m
Quiz :It is to be ensured that the refrigerant recovery cylin
m m m m m m m m m m
der is not filled to more than _____ of its capacity
m m m m m m m m m m
90 percent
m
60 percent
m
50 percent
m
80 percent - √Answer :80 percent
m m mm m m
Quiz :Only _____ refrigerant can be transferred or sold to
m m m m m m m m m
another individual
m m
Disposed
Reclaimed
Recovered
Recycled - √Answer :Reclaimed m mm m
Quiz :Lifetime of CFCs is believed to be in the range ___
m m m m m m m m m m m
___ : m
Above 1000 years m m
5 to 10 years
m m m
100 to 500 years
m m m
20 to 100 years - √Answer :20 to 100 years
m m m m mm m m m m
Quiz :EPA has divided refrigerated appliances into _____
m m m m m m m
groups
m
Six
