What is typically used on small appliances as a service aperture or other device for adding or removing refrigerant?
a. A straight piece of tubing that is entered using a piercing access tube.
b. A line located 15 inches below the compressor.
c. A valve installed at the factory which has a ¼ in...
EPA SECTION 608 TYPE I, TYPE II , TYPE III
What is typically used on small appliances as a service aperture or other device for adding or removing
refrigerant?
a. A straight piece of tubing that is entered using a piercing access tube.
b. A line located 15 inches below the compressor.
c. A valve installed at the factory which has a ¼ inch diameter and machine threads.
d. A service aperture is not present because small appliances are exempt from this requirement. -
answera. A straight piece of tubing that is entered using a piercing access tube.
What type of appliances are technicians certified to service after passing the type 1 examination?
a. Appliances containing 5 pounds or less of refrigerant that have been hermetically sealed and charged
at the factory.
b. Split systems containing 5 pounds or less of refrigerant that have been hermetically sealed and
charged at the factory.
c. Appliances containing 5 pounds or less of refrigerant that have an open drive compressor and have
been charged at the factory.
d. Motor vehicle air conditioning equipment. - answera. Appliances containing 5 pounds or less of
refrigerant that have been hermetically sealed and charged at the factory.
What type of certification is required for persons recovering CFC's, HCFCs, or HFCs during maintenance,
service, or repair of small appliances.
a. Type II technician.
b. Type III technician.
c. Type I technician.
d. Technician who has passed the core exam. - answerc. Type I technician.
EPA Section 608 rules require capture of 80% of the HCFC and HFCs from a small appliance sealed
systems with a non-operating compressor if technicians are using;
a. a system-dependent (passive) process.
b. a self-contained (active) process.
c. either a passive or an active recovery process.
d. neither recovery process. - answerc. either a passive or an active recovery process.
Which of the following does NOT meet the criteria for Type 1 appliance certification?
a. A MVAC-like system that holds three pounds of R-12.
b. a water cooler that holds 13 ounces of R-22
c. a food freezer that holds 22 ounces of R-134a
d. A dehumidifier that holds seven ounces of R-410A - answera. A MVAC-like system that holds three
pounds of R-12.
What of the following are included in EPA's definition of "small appliance?"
a. Products fully manufactured, charged, and hermetically sealed in a factory.
b. Products having 15 pounds or less of refrigerant.
c. Products with compressors under ½ horsepower.
,d. Fully charged components ready for installation in a split system. - answera. Products fully
manufactured, charged, and hermetically sealed in a factory.
Which of the following is an approved substitute refrigerant for new household refrigerators, freezers,
and combination refrigeration/freezers?
a. R-600a
b. R-1234yf
c. R-1234zd
d. R-170 - answera. R-600a
Which hydrocarbon refrigerant is approved for retrofit into existing household refrigerators?
a. HC R-600a 2 ounces or less
b. Blended HC R-441A
c. HC R-290 1 lb. or less
d. Hydrocarbons are not approved for retrofit applications - answerd. Hydrocarbons are not approved
for retrofit applications
Recovery devices for use with small appliances containing CFCs, HCFCs, and HFCs must meet which of
the following requirements?
a. Recovering 90% of the refrigerant when the compressor is operating or achieving a 4-inch vacuum
under the conditions of AHRI 740.
b. Recovering 80% of the refrigerant when the compressor is operating.
c. Recovering 95% of the refrigerant when the compressor is operating or achieving a 10-inch vacuum
under the conditions of AHRI 740.
d. Recovering 75% of the refrigerant when the compressor is operating. - answera. Recovering 90% of
the refrigerant when the compressor is operating or achieving a 4-inch vacuum under the conditions of
AHRI 740.
What is the approximate pressure of a storage cylinder of recovered R-134a that does not contain any
non-condensable impurities and is stored in a room where the temperature is 80°F?
a. 37 psig
b. 87 psig
c. 157 psig
d. 207 psig - answerb. 87 psig
Before beginning a refrigerant recovery procedure, it is ALWAYS necessary to;
a. allow the appliance to stabilize at room temperature.
b. know the type of refrigerant that is in the system.
c. remove the appliance to an outdoor location.
d. disconnect the appliance from its power source. - answerb. know the type of refrigerant that is in the
system.
A passive system-dependent recovery process for small appliances;
a. still uses a pump to recover refrigerant.
b. must use a pressure relief device when recovering refrigerant.
c. captures refrigerant in a non-pressurized container.
d. can only be performed on a system with an operating compressor. - answerc. captures refrigerant in a
non-pressurized container.
,For which of the following refrigeration systems/appliances would it be permissible to use a passive
recovery device for recovery of CFCs, HCFCs, and HFCs?
a. A centrifugal air conditioner
b. A reciprocating liquid chiller
c. A single compressor large commercial walk-in freezer
d. A domestic refrigerator - answerd. A domestic refrigerator
What is the maximum normal charge of HCFC or HFC refrigerant in an appliance that is allowed to use
system dependent recovery equipment?
a. 5 pounds
b. 10 pounds
c. 15 pounds
d. 50 pounds - answerc. 15 pounds
What is the maximum allowable factory charge of refrigerant for Type I appliances using CFCs, HCFCs, or
HFCs?
a. 3 pounds
b. 5 pounds
c. 10 pounds
d. 15 pounds - answerb. 5 pounds
Equipment which is used to recover CFC, HCFC, and HFC refrigerant from small appliances for the
purpose of disposal must meet what standard?
a. Recover 95% of the refrigerant whether or not the compressor is operative.
b. Recover 80% of the refrigerant with an inoperative compressor and 90% of the refrigerant with an
operative
compressor.
c. Recover 90% of the refrigerant with an inoperative compressor and 80% of the refrigerant with an
operative
compressor.
d. Recover 75% of the refrigerant within 5 minutes. - answerb. Recover 80% of the refrigerant with an
inoperative compressor and 90% of the refrigerant with an operative
compressor.
The sale of CFC, HCFC, HFC, and HFO refrigerants to service or install refrigeration and air-conditioning
Equipment is;
a. banned from use unless you have a recovery machine.
b. limited by law to HVAC contractors and/or Mechanical engineers.
c. allowed only if there is proof of need.
d. restricted to technicians who are EPA certified in refrigerant recovery. - answerd. restricted to
technicians who are EPA certified in
refrigerant recovery.
When servicing a small appliance found to be leaking it is;
a. mandatory to repair the leak within 30 days.
b. mandatory to repair the leak only when the annualized leak rate exceeds 15% of the total charge.
c. not mandatory to repair the leak but it is recommended to do so whenever possible.
, d. mandatory to recover all remaining refrigerant and dispose of the appliance. - answerc. not
mandatory to repair the leak but it is recommended to do so whenever possible.
Which of the following best describes low loss fittings on refrigerant recovery devices used to recover
CFCs, HCFCs, and HFCs?
a. They can be either manually closed or automatically closed when disconnected to prevent loss of
refrigerant from hoses.
b. They are used to connect the recovery device to an appliance and leak only small amounts of
refrigerant
during use.
c. They are used to connect the recovery device to an appliance and must be discarded after each use.
d. They eliminate oil loss during recovery. - answera. They can be either manually closed or
automatically closed when disconnected to prevent loss of refrigerant from hoses.
Why should a recovery cylinder be allowed to stabilize to room temperature when checking for non
condensables inside a recovery cylinder known to contain only one refrigerant.
a. To prevent safety valves from purging refrigerant.
b. It is a quick method of determining refrigerant level inside the tank.
c. Comparisons to a pressure/temperature chart are only valid if both the pressure and temperature of
the
refrigerant are stable and known. - answerc. Comparisons to a pressure/temperature chart are only
valid if both the pressure and temperature of the
refrigerant are stable and known.
Which of the following is a true statement regarding a refrigerant that can be used as a direct service
'drop-in' substitute for R-22?
a. R-134a used with a TEV
b. R-410A used with a TEV that has a MOP of 75psig.
c. R-290 with a fixed orifice metering device.
d. There is no such thing as a "drop-in" substitute. - answerd. There is no such thing as a "drop-in"
substitute.
Which of the following refrigerants is very high pressure and generally does NOT need to be recovered?
a. R-22
b. R-134a
c. R-404A
d. R-744 - answerd. R-744
When installing any type of access fitting onto a sealed system;
a. the fitting should be leak tested before proceeding with recovery.
b. it is not necessary to leak test an access fitting.
c. the fitting need not be leak tested until the total repair is completed.
d. the system must be pressurized with dry nitrogen before leak testing can be attempted. - answera.
the fitting should be leak tested before proceeding with recovery.
When R-410A is recovered from an appliance, it;
a. can be mixed with either R-32 or R-125a during the recovery process, since R-410A is a mixture of
those two refrigerants.
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