WorksheetsHVAC Recovery EPA 608
Total questions: 18
Worksheet time: 21mins
Recovery speed can be increased by
placing the recovery vessel in hot water
placing the recovery vessel in ice water
using an oversized recovery cylinder
using longer hoses leading to the recovery tank
Why is it likely for recovery and recycling machines to overheat when drawing a deep vacuum?
because a deep vacuum causes high head pressure
because refrigerant is needed to cool the compressor
because the refrigerant oil has evaporated
a recovery and recycling machine would not overheat when drawing a deep vacuum
When using recovery and recycling equipment manufactured after November 15, 1993, technicians must evacuate an appliance containing more than 200 lb. of HCFC-22 to what level before making a major repair?
0 psig
4" Hg
10" Hg
30" Hg
When using recovery and recycling equipment manufactured before November 15, 1993, technicians must evacuate an appliance containing less than 200 lb. of HCFC-22 to what level before making a major repair?
0 psig"
4" Hg
10" Hg
30" Hg
To reprocess refrigerant to meet new product specifications is called ____.
recovery
renew
reclaim
recycle
To clean refrigerant by the use of filter dryers and then reuse it is called ____.
recovery
renew
reclaim
recycle
To reprocess refrigerant to meet new product specifications is called ____.
recovery
renew
reclaim
recycle
To remove the refrigerant from a system without any testing or processing and to be put back into the same system is called ____.
recovery
renew
reclaim
recycle
A refrigerant label to identify the type of refrigerant recovered is placed on recovery cylinders for all of the following reasons, EXCEPT to:
Avoid accidental mixing of recovered refrigerants.
Allow the recycler to identify the contents.
Tell if the cylinder is safe.
Allow the technician's company to determine the amount of refrigerant recovered for record keeping purposes.
Distributors must verify which of the following before they can sell HFC or HCFC refrigerant?
The distributor is a Section 608 certified distributor.
The distributor is selling Section 608 certified refrigerant.
The purchaser owns certified recovery and/or recycling equipment.
The purchaser is or employs a Section 608 certified technician.
One should NEVER heat a refrigerant storage or recovery tank with an open flame because of all of the following, EXCEPT?
Reclaimers will not accept visibly burned recovery tanks
It can result in venting refrigerant to the atmosphere
The tank may explode, causing serious injury to people nearby
Refrigerant in the tank may decompose, forming a toxic material
Why should long hoses between the unit and the recovery machine be avoided?
They cause excessive pressure drop and increased recovery time.
They increase pressure and recovery time.
They decrease emissions and recovery time.
They cause excessive temperature rises, with decreasing pressures that can lead to seal failure.
What should a technician do if they discover that some R-410A was added to an R-22 system?
Vent the refrigerant since it cannot be reclaimed.
Recycle the refrigerant.
Recover the mixture in a separate recovery tank.
Recover and use in another system.
Once the technician has reached the required level of vacuum when recovering a system, they should wait a few minutes and monitor the system. If the pressure rises, indicating that there is _________ in the system, recovery must be repeated.
nitrogen
refrigerant
ozone
non-condensables
What is the primary water source for a water cooled recovery unit's condensing coil?
Chilled water from the evaporator
Condenser water
Local municipal water supply
De ionized water
When can appliances containing refrigerants be recovered to atmospheric pressure?
For major repairs such as replacing the compressor, condenser, or evaporator.
The repair is followed by an evacuation of the appliance to the environment.
Leaks in the appliance make recovery to the prescribed level unattainable.
The appliance is being disposed of and recycled.
1. When is it against EPA regulations to use system-dependent recovery equipment?
When the compressor of the appliance is operational.
When the ambient temperature is over 105°F.
When the appliance contains over 15 pounds of refrigerant.
When the appliance is leaking.
Which of the following statements about recycling and recovery equipment used for stationary refrigeration is FALSE?
It must be tested by an EPA-approved third party
Purchases of such equipment must be reported to the EPA
It must be equipped with low-loss fittings
Equipment designed to recover flammable refrigerant must meet a specific UL safety standard
