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A small appliance is defined by EPA as;A Appliances charged, and hermetically sealed in a factory with 8 Lbs or less of refrigerant.B Appliances charged, and hermetically sealed in a factory with 10 Lbs or less of refrigerant.C Appliances no larger than 3 cubic feet.D Appliances manufactured, charged, and hermetically sealed in a factory with 5 Lbs or less of refrigerant.
D Appliances manufactured, charged, and hermetically sealed in a factory with 5 Lbs or less of refrigerant
Type I Certification is required for;A persons handling refrigerant during maintenance, service, or repair of small appliancesB all persons who work in the factory that produces refrigerants.C all persons working at a disposal site must be EPA certified as Type I.D owners of manufacturing companies that make the CFC's.
A persons handling refrigerant during maintenance, service, or repair of small appliances
If regulations change after the technician becomes certified;A The technician must re-take the certification exam.B Another fee and extra exam must be administered to the technician.C The technician is responsibility for complying with any future changes in the regulations.D There are no required compliances for the technician that is already certified.
C The technician is responsibility for complying with any future changes in the regulations.
Recovery equipment manufactured after November 15, 1993 must be;A Certified by an EPA approved testing laboratory.B CSA approved.C used on all equipment manufactured after July 1, 1995.D used on all equipment manufactured after November 15, 1995.
A Certified by an EPA approved testing laboratory
After recovering refrigerant, the Nitrogen used to flush the system may be:A)legally vented.B)recovered.C)reused in another appliance.D)requires a pressure regulator for legal venting.
When pressurizing a system with nitrogen you should;A)never exceed 3.5 times the high side ratingB)charge through a pressure regulator.C)place a relief valve in the downstream line from the pressure regulator.D)Both B and C
Recovery equipment manufactured before November 15, 1993 must be capable of recovering.A)90 percent of the refrigerant or achieving 4 inches of vacuum.B)90 percent of the refrigerant or achieving 5 inches of vacuum.C)80 percent of the refrigerant or achieving 5 inches of vacuum.D)80 percent of the refrigerant or achieving 4 inches of vacuum.
D)80 percent of the refrigerant or achieving 4 inches of vacuum.
Small appliances in recreational vehicles may use refrigerants such as Ammonia, Hydrogen, or water, and therefore;A)The refrigerant must be recovered.B)The refrigerant should not be recovered.C)Should be stored for later uses.D)Should be sent back to the dealer for processing purposes.
B)The refrigerant should not be recovered.
Refrigerators in the 1950's and earlier may have used what refrigerants (recovery is not required)?A)Nitrogen Compounds, Alcohol, and Sulfur Dioxide.B)Methyl Formate, Methyl Chloride, or Sulfur Dioxide.C)Argon, . Methyl Chloride, or BarilionD)Sodium Formate, Sodium Chloride, Sulfur Monoxide.
B)Methyl Formate, Methyl Chloride, or Sulfur Dioxide.
Applying heat with a heat gun to the compressor;A)may free-up a bound compressor.B)can help vaporize any trapped liquid refrigerant during recovery.C)can help remove trapped refrigerant vapor during recovery.D)can aid in isolating and pinpointing a refrigerant leak.
B)can help vaporize any trapped liquid refrigerant during recovery.
If after installing a fitting for the purpose of recovering the appliances refrigerant, you find that the system pressure is 0 psig;A)attach the recovery equipment and achieve at least 4 inches of vacuum.B)Pressurize the system with nitrogen prior to recovery.C)Recovery is not required.D)Pressurize the system and leak test. (adsbygoogle = window.adsbygoogle || []).push({});
C)Recovery is not required.
Which of the following is true of small appliances refrigerant leaks;A EPA does not require repair, but leaks should be repaired whenever possible.B All leaks on Type I equipment must be repaired.C Only very large leaks must be repaired.D All systems with an annualized leak rate of 15 percent or greater must be repaired.
A EPA does not require repair, but leaks should be repaired whenever possible.
Recovery equipment manufactured after November 15, 1993 must be capable of recovering;A 95% of the refrigerant or or achieving 5 inches of vacuum.B 90% refrigerant or or achieving 4 inches of vacuum.C 80% refrigerant or or achieving 4 inches of vacuum.D 100% refrigerant or or achieving 0 inches of vacuum.
B 90% refrigerant or or achieving 4 inches of vacuum.
Recovering multiple types of refrigerants in the same cylinder;A is ok. .B will make the reclaimed refrigerants non reclaimable and a charge for disposal may be levied.C will require venting to get rid of it.D will lower the pressure in the recovery cylinder.
B will make the reclaimed refrigerants non reclaimable and a charge for disposal may be levied.
Self-contained or active recovery equipment;A Depends on a special charcoal bag.B Has its own means of recovery.C Is not capable of reaching the required liquid rates.D Depends only on a vacuum pump of more than 3 CFMs.
B Has its own means of recovery
System-dependant or passive recovery equipment;A Captures refrigerant into a non-pressurized container with assistance of the appliance compressor. .B Captures refrigerant into large containers only.C Always uses the assistance of a vacuum pumpD A vacuum pump cannot be used in combination with non-pressured containers.
A Captures refrigerant into a non-pressurized container with assistance of the appliance compressor
What is defined as a non-condensible?A MoistureB AirC R-12D R-134A
When using a system-dependent recovery system on an appliance that has an operating compressor, the technician should;A Run the compressor and recover from the low side of the system only.B Put access fittings on many different locations on both sides of the system.C Run the compressor and recover from the high side of the system.D Never allow the refrigerant to go to the high side of the system.
C Run the compressor and recover from the high side of the system.
When using a system-dependent recovery system on an appliance that has a non-operating compressor, the technician should;A Place access fitting on both the low and high side of the system.B Not heat the oil to release refrigerant.C Not use the self-contained recovery device from the shop or place of business. Send to the junk yard to be crushed.D Send the appliance to the junk yard to be crushed.
A Place access fitting on both the low and high side of the system.
System-dependant devices may only be used on appliances containing;A 20 pounds of refrigerant or less.B 18 pounds of refrigerant or less.C 15 pounds of refrigerant or less.D More than 15 pounds of refrigerant.
C 15 pounds of refrigerant or less
Small appliances are equipped with a straight piece of tubing (process stub) used to;A install a piercing type access valve fitting.B measure sub-cooling.C as a p-trap for residue and debrisD measure superheat.
A install a piercing type access valve fitting.
If a strong odor is detected while performing the recovery process,A The condenser has been operating incorrectly.B A compressor burnout has likely occurred.C The wrong oil has probably been installed in the unit, and has caused the problem.D The system has likely experienced electrical surges from the utility company.
B A compressor burnout has likely occurred.
After the refrigerant has been recovered, which of the following can be used to flush the system?A R-22B Compressed airC NitrogenD Water
When filling a charging cylinder with a regulated refrigerant;A The refrigerant vapor that is vented off the top of the cylinder must be recovered.B Fill the cylinder in the vapor phaseC The refrigerant vapor can be vented as a de-minimus amount.D The refrigerant must be weighed in.
A The refrigerant vapor that is vented off the top of the cylinder must be recovered |
Technicians who perform sealed-system service on small appliances must have;
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