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EPA 608 CERTIFICATION CORE/254 QUESTIONS AND ANSWERS (A+)
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EPA 608 CERTIFICATION CORE/254 QUESTIONS AND ANSWERS (A+)
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EPA 608 CERTIFICATIONCORE/254 QUESTIONS AND
ANSWERS (A+)
Halons were completely phased out by ______ :
1994
1995
1987
2000 - √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 - √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 - √Answer :Slower
Quiz :TXV valve maintaining the pressure difference
between _____ and _____ of the system
Expansion valve, Evaporator
Condenser, Evaporator
Compressor, Condenser
Evaporator, Compressor - √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 - √Answer :Nitrogen gas
Quiz :Which one of the following has highest Ozone
Depletion Potential (ODP):
HCFC
All will have same ODP
CFC
HFC - √Answer :CFC
Quiz :The ____connects the evaporator to the
compressor in a refrigerant system:
Suction Line
Evaporation Line
Discharge Line
Liquid Line - √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 - √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 - √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 - √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 -
√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 - √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 - √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 - √Answer :80 percent
Quiz :Only _____ refrigerant can be transferred or sold
to another individual
Disposed
Reclaimed
Recovered
Recycled - √Answer :Reclaimed
Quiz :Lifetime of CFCs is believed to be in the range
______ :
Above 1000 years
5 to 10 years
100 to 500 years
20 to 100 years - √Answer :20 to 100 years
Quiz :EPA has divided refrigerated appliances into
_____ groups
Six
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