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EPA 680 EXAM PACKAGE DEAL QUESTIONS & ANSWERS RATED A+
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[Show more]When recovering refrigerant from a household refrigerator who's compressor does not run, it is 
recommended that a low and high side access valves be installed because: - it can help speed of 
recovery and required recovery effiency 
Recovery equipemnt used for the service or repair of small applia...
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Add to cartWhen recovering refrigerant from a household refrigerator who's compressor does not run, it is 
recommended that a low and high side access valves be installed because: - it can help speed of 
recovery and required recovery effiency 
Recovery equipemnt used for the service or repair of small applia...
The primary water source for cooling the condenser of a water-cooled recovery unit is: - local 
municipal water supply 
Which of the foloowing repairs would ALWAYS be considered "major" under EPA's - replacement 
of evaporator coil 
According to ASHRAE Guideline 3-1996, if the pressure in a syste...
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Add to cartThe primary water source for cooling the condenser of a water-cooled recovery unit is: - local 
municipal water supply 
Which of the foloowing repairs would ALWAYS be considered "major" under EPA's - replacement 
of evaporator coil 
According to ASHRAE Guideline 3-1996, if the pressure in a syste...
A __________ recovery device can be use for type 1 small appliance applications or type 2 applications if 
the total charge is below 15 pounds. - System dependent 
Always _____________ when connecting or disconnecting refrigeration hoses. - 1.) wear safety 
eyewear and butyl-lined gloves 2.) verify ...
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Add to cartA __________ recovery device can be use for type 1 small appliance applications or type 2 applications if 
the total charge is below 15 pounds. - System dependent 
Always _____________ when connecting or disconnecting refrigeration hoses. - 1.) wear safety 
eyewear and butyl-lined gloves 2.) verify ...
Once you take the EPA exam, you must memorize all regulations because they will stay the same forever. 
t or f? - False 
What is the primary source of chlorine in the stratosphere? - Emissions of refrigerant chemicals 
such as CFCs and HCFCs by humans 
As technicians, we must follow and be up to dat...
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Add to cartOnce you take the EPA exam, you must memorize all regulations because they will stay the same forever. 
t or f? - False 
What is the primary source of chlorine in the stratosphere? - Emissions of refrigerant chemicals 
such as CFCs and HCFCs by humans 
As technicians, we must follow and be up to dat...
Containers designed "refillable" by DOT are used for transporting recovered pressurized refrigerant to? - 
To meet safety requirements. 
What is the best proof that CFC's are in the stratosphere? - The measurement of CFC's in air 
samples from the stratosphere. 
The size (capacity) of the vacuum...
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Add to cartContainers designed "refillable" by DOT are used for transporting recovered pressurized refrigerant to? - 
To meet safety requirements. 
What is the best proof that CFC's are in the stratosphere? - The measurement of CFC's in air 
samples from the stratosphere. 
The size (capacity) of the vacuum...
The EPA regulations require that leaking commercial or industrial process refrigeration equipment must 
be repaired when the leak rate exceeds _____ of the charge per year. - 35% 
The proper charging method for blended (non-azeotropic) refrigerants (400 Series) is to use a remove 
the charge from th...
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Add to cartThe EPA regulations require that leaking commercial or industrial process refrigeration equipment must 
be repaired when the leak rate exceeds _____ of the charge per year. - 35% 
The proper charging method for blended (non-azeotropic) refrigerants (400 Series) is to use a remove 
the charge from th...
heat added to refridgerant vapor that causes its temperature to rise above its saturartion temp - 
Subheated refridgerant 
causes change of state, cannot be felt, cannot be measured with a thermometer, but does not cause a 
change in temperature. - Latent Heat 
a high capacity vacuum pump and short,...
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Add to cartheat added to refridgerant vapor that causes its temperature to rise above its saturartion temp - 
Subheated refridgerant 
causes change of state, cannot be felt, cannot be measured with a thermometer, but does not cause a 
change in temperature. - Latent Heat 
a high capacity vacuum pump and short,...
To recover refrigerant is to: - Remove refrigerant is any condition from a system in either an active 
or passive manner, and store it in an external container without necessarily testing or processing. 
The required evacuation level for recovering refrigerant from a low pressure appliance with a re...
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Add to cartTo recover refrigerant is to: - Remove refrigerant is any condition from a system in either an active 
or passive manner, and store it in an external container without necessarily testing or processing. 
The required evacuation level for recovering refrigerant from a low pressure appliance with a re...
What are Cooling Towers? - They are heat removal devices used to transfer process waste heat to 
the atmosphere. 
The most efficient method of leak checking a charged low-pressure system is to use? - Controlled 
hot water or heater blankets 
In relation to the three "R's" what is Reclaim? - To pr...
Preview 2 out of 7 pages
Add to cartWhat are Cooling Towers? - They are heat removal devices used to transfer process waste heat to 
the atmosphere. 
The most efficient method of leak checking a charged low-pressure system is to use? - Controlled 
hot water or heater blankets 
In relation to the three "R's" what is Reclaim? - To pr...
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