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17 Cards in this Set
- Front
- Back
- 3rd side (hint)
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EPA regulations include which of the following in the definition of small appliances |
A. products manufactured charged in hermetically sealed in the factory B. products have a 5 pounds or less of refrigerant C. products with compressors under half horsepower D. both A and B |
Both A and B |
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the sale of CFC and hcfc refrigerants is |
A. Banned B. limited by law to equipment owners C. allowed only if there is proof of need D. restricted to technicians who are EPA certified in refrigerant recovery |
Restricted to technicians were EPA certified in refrigerant recovery |
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When servicing a small appliance for leak repair |
A. It is mandatory to repair the leak within 30 days B. it is mandatory to repair the leak only when 35% of the charges escapes within a twelve-month period C. it is not mandatory to repair the leak but do so whenever possible D. both A and B |
It is not mandatory to repair the leak but do so whenever possible |
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Persons recovering refrigerant during maintenance service or repair of small appliances must be certified as |
A. A type 2 technician B. a Type 3 technician C. a type 1 technician or Universal technician D. all of the above |
A type 1 technician or Universal technician |
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For which of the following refrigeration systems appliances would it be permissible to use a passive recovery device for refrigerant recovery |
A. Centrifugal air conditioner B. a reciprocating liquid chiller C. a single compressor large commercial walk-in freezer D. a domestic refrigerator |
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Which of the following is not a method or device presently used for monitoring the 80% fill level in a recovery tank |
A. Float devices B. scales C. sight glass D. thermistor |
Thermistor |
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Any person who opens an appliance for maintenance service or repair must have at least one self-contained recovery machine available at their place of business. The exceptions to this rule or persons working on |
A. Small appliances B. low pressure appliances C. high pressure appliances D. very high pressure appliances |
Very high pressure appliances |
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recovery equipment used during maintenance service or repair of small appliances must be certified by the EPA approved laboratory is manufactured after |
A. July 1st 1992 B. July 1st 1993 C. May 13th 1993 D. November 15th 1993 |
November 15th 1993 |
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Equipment manufactured after November 15th 1993 which is used to recover refrigerant for small appliances for the purpose of disposal must meet what standard |
A. Recover 95% of the refrigerant whether or not the compressor is inoperative B. recover 80% of the refrigerator with an inoperative compressor C. recover 90% of the refrigerant with an operator compressor D. both B & C |
Both B and C |
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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 it leak testing can be attempted |
The fitting should be leak tested before proceeding with recovery |
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What a hassle refrigerator compressor does not run it is recommended that low and high Side Access valve be installed when recovering refrigerant from the system because |
A. It can enhance the speed of recovery B. it may be necessary to achieve required recovery efficiency C. otherwise the refrigerator compressor may be damaged D. both A&B |
Both A and B |
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When using a system dependent passive recovery process on operating compressor technician should |
A. Run the appliances compressor on 240 volts while recovering the refrigerant from the capillary tube B. Run the appliances compressor for several minutes shutting it off and then recovering the refrigerant from the high side C. run the appliances compressor and recover the refrigerant from the high side D. run the appliances compressor for several minutes shutting it off and then recovering the refrigerant from the low side |
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All recovery devices manufactured before November 15th 1993 for use with small appliances must meet which of the following requirements |
A. Capable of recovering 80% of the refrigerant weather not the compressor is operating or achieving a full range of vacuum under conditions of a RI 7:40 B. capable of recovering 70% of the refrigerant in the compressor is operating or achieving a 4 inch vacuum under conditions of ARR 7:40 C. capable of choosing a 10 inch vacuum under conditions of a RI 740 D. no requirements this equipment would be considered grandfather |
Capable of recovering 80% of the refrigerant weather not the compressor is operating or achieving a 4 inch vacuum under conditions of AR at 7:40 |
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After installing an opening a piercing exit if the system pressure is _______ do not begin |
A. 75 PSIG B. 50 PSIG C. 30 PSIG D. 0 PSIG |
0 PSIG |
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which of the following recovery equipment maintenance practices should be performed on a regular |
A. Check vacuum pump for any leaks B. check recovery device for refrigerant leaks C. check amperage draw of recovery device D. all of the above |
All the Above |
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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 section D. disconnect the appliance from its power source |
know the type of refrigerant that is in the system |
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After recovering refrigerant from a sealed system if nitrogen is used to pressure rise or blow debris out of the system the nitrogen |
A. Must be removed B. may be vented C. should be used should only be used if mixed with ammonia |
May be vented |
