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Free Practice Quiz Question List

3 Type II: High-Pressure Appliances Online Quiz Questions

Use this free practice quiz with 20 questions to review 3 Type II: High-Pressure Appliances, test your knowledge, and prepare for your next test or exam.

20 questions
01
Choose one
1 point

What does recovering refrigerant from an appliance mean?

  1. A

    Cleaning and processing refrigerant inside the appliance

  2. B

    Removing refrigerant from an appliance and storing it in an external container

  3. C

    Releasing refrigerant from an appliance before service

02
True or false
1 point

True or false: Recovered refrigerant may be transferred to an appliance owned by someone else without being reclaimed.

  1. A

    True

  2. B

    False

03
Choose one
1 point

Which situation is generally permitted when using system-dependent recovery equipment?

  1. A

    Any appliance with a full charge over 15 lb, whether or not the equipment is attached

  2. B

    An appliance with a full charge over 15 lb when the equipment is permanently attached as a pump-out unit

  3. C

    Only appliances with a full charge under 15 lb

  4. D

    Any appliance, regardless of charge, if the equipment is portable

04
Written response
1 point

Under the Section 608 ODS leak-repair rules described here, what is the minimum full charge at which an appliance may be subject to the leak-repair requirements? Enter the value in pounds.

05
Choose one
1 point

A high-pressure appliance has a charge of 250 lb. What evacuation level is required before opening it when the recovery equipment was made before November 15, 1993?

  1. A

    4 in. Hg vacuum

  2. B

    0 in. Hg vacuum

  3. C

    10 in. Hg vacuum

06
Written response
1 point

For a covered commercial refrigeration appliance subject to the Section 608 ODS leak-repair rules, what 12-month leak rate triggers corrective action? Enter the percentage-point value.

07
True or false
1 point

True or false: After an appliance reaches its target vacuum, a pressure rise can indicate that refrigerant remains in liquid or dissolved in oil.

  1. A

    True

  2. B

    False

08
Choose all
1 point

A leak prevents an appliance from reaching the required table evacuation level. Which actions follow the stated exception? Select all correct choices.

  1. A

    Where possible, isolate leaking sections from non-leaking sections.

  2. B

    Evacuate non-leaking sections to the table level.

  3. C

    Evacuate leaking sections to the lowest attainable level without substantial contamination, but not above 0 psig.

  4. D

    If a leak prevents reaching the table level, leave all sections at their starting pressure.

09
Open ended
1 point

When practical, why should liquid refrigerant be recovered before vapor, and what two precautions should a technician take when storing recovered refrigerant?

10
Choose one
1 point

Under the general Section 608 ODS leak-repair timeline, which response applies when an appliance exceeds its applicable leak-rate trigger?

  1. A

    Repair within one year, with no planning deadline

  2. B

    Repair within 30 days, or develop a retrofit-or-retirement plan within 30 days and complete it within one year

  3. C

    Always repair within 120 days, regardless of the appliance

11
Written response
1 point

In what month and year do the separate AIM Act requirements described here begin for certain appliances charged with 15 lb or more of an HFC or certain HFC substitutes?

12
True or false
1 point

True or false: A technician may use compressed air to pressure-test a refrigerant system if dry nitrogen is unavailable.

  1. A

    True

  2. B

    False

13
Choose one
1 point

Why should a technician use a scale while recovering refrigerant into a recovery cylinder?

  1. A

    To estimate the appliance’s refrigerant charge without checking the cylinder

  2. B

    To avoid exceeding the recovery cylinder’s rated fill limit

  3. C

    To make recovered refrigerant meet purity specifications

  4. D

    To determine whether the appliance is a high-pressure or very-high-pressure type

14
Choose one
1 point

Which practice helps ensure safe and appropriate refrigerant recovery before equipment is connected?

  1. A

    Connect any available recovery equipment first, then identify the refrigerant

  2. B

    Use equipment selected only by the appliance’s physical size

  3. C

    Identify the refrigerant and appliance before connecting compatible recovery equipment, hoses, and cylinders

  4. D

    Use the same recovery equipment for every refrigerant because compatibility is not important

15
Written response
1 point

Recovered refrigerant is going to change ownership. Which type of entity must reclaim it?

16
Choose one
1 point

A high-pressure appliance contains 150 lb of refrigerant. What evacuation level does the table require before opening it, whether the recovery equipment was made before or after November 15, 1993?

  1. A

    4 in. Hg vacuum with older equipment and 10 in. Hg vacuum with newer equipment

  2. B

    10 in. Hg vacuum regardless of equipment age

  3. C

    0 in. Hg vacuum regardless of equipment age

17
Choose one
1 point

For a non-major repair on a high- or very-high-pressure appliance, when no evacuation to the atmosphere will follow, what pressure condition is required before opening?

  1. A

    Apply the table’s 4- or 10-in. Hg vacuum requirement in every case

  2. B

    For a qualifying non-major repair with no evacuation to the atmosphere afterward, bring the high- or very-high-pressure appliance to 0 psig or lower before opening

  3. C

    Open the appliance at any pressure as long as recovery equipment is connected

  4. D

    Bring the appliance to 0 psig only after opening it

18
Choose all
1 point

A technician is preparing to service a stationary high-pressure appliance. Which actions follow the stated safety practices? Select all that apply.

  1. A

    Confirm the refrigerant and appliance, then use compatible recovery equipment, hoses, and cylinders.

  2. B

    Wear appropriate eye and hand protection, and avoid skin contact with liquid refrigerant.

  3. C

    Work with adequate ventilation because refrigerant can displace oxygen.

  4. D

    Use oxygen to pressurize the refrigerant system for a pressure test.

  5. E

    Energize the hermetic compressor while the system is under vacuum.

19
Fill in the blank
1 point

A technician will service a stationary high-pressure appliance that is neither a small appliance nor a motor-vehicle air conditioner. The relevant Section 608 certification is .

20
Fill in the blank
1 point

A technician is about to open a high-pressure appliance for a non-major repair, and no evacuation to the atmosphere will follow. Before opening, the appliance must be at or lower.