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Free Practice Quiz Question List

7 Type II: High-Pressure Appliances Online Quiz Questions

Use this free practice quiz with 20 questions to review 7 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 accomplish, by itself?

  1. A

    Recovering removes and stores refrigerant, and automatically cleans it for reuse.

  2. B

    Recovering removes and stores refrigerant, but does not by itself clean or reclaim it.

  3. C

    Recovering vents refrigerant into the atmosphere after it has been measured.

  4. D

    Recovering is the same as reclaiming refrigerant for resale to a new owner.

02
True or false
1 point

System-dependent recovery equipment is used on an appliance with a full charge of 18 pounds. It is not permanently attached as a pump-out unit. True or false: this equipment may be used on the appliance.

  1. A

    True

  2. B

    False

03
Written response
1 point

Before removing oil directly from an appliance or isolated section, what is the maximum pressure allowed? Enter the value in psig.

04
Fill in the blank
1 point

Recover refrigerant using equipment that is certified for the refrigerant and appliance.

05
True or false
1 point

A technician must not energize a hermetic compressor while its system is under vacuum. True or false?

  1. A

    True

  2. B

    False

06
Written response
1 point

For a non-major repair that will not be followed by evacuation of refrigerant to the environment, bring a high-pressure appliance to what pressure before opening it? Enter the value in psig.

07
Choose all
1 point

Which practices are appropriate during refrigerant recovery? Select all that apply.

  1. A

    Removing liquid refrigerant first generally speeds recovery.

  2. B

    Overfilling a recovery cylinder is acceptable if recovery is nearly complete.

  3. C

    Recovery cylinders and equipment must be rated for the refrigerant.

  4. D

    A pressure rise after recovery proves that the appliance contains no refrigerant.

08
True or false
1 point

An appliance containing only substitute refrigerants is subject to the EPA leak-repair program described here whenever its full charge is at least 50 pounds. True or false?

  1. A

    True

  2. B

    False

09
Fill in the blank
1 point

When ownership of recovered refrigerant changes, it generally must be reclaimed by an before resale or use by the new owner.

10
Choose one
1 point

A high-pressure appliance has a 250-pound charge. Before opening it for service, what evacuation level is required when using recovery equipment made on or after November 15, 1993?

  1. A

    0 in. Hg vacuum

  2. B

    10 in. Hg vacuum

  3. C

    4 in. Hg vacuum

  4. D

    0 psig

11
Choose all
1 point

Which statements about leak detection and pressure testing are correct? Select all that apply.

  1. A

    Excessive superheat can be a sign of a leak.

  2. B

    Oil traces on a hermetic system can be a sign of a leak.

  3. C

    Oxygen is an appropriate gas for pressure testing.

  4. D

    An electronic detector or bubbles can be used to locate leaks.

  5. E

    Compressed air is an appropriate gas for pressure testing.

12
Choose one
1 point

Which appliance meets the stated EPA leak-repair program's charge, refrigerant, and leak-rate criteria for corrective action?

  1. A

    A 45-pound commercial appliance containing an ozone-depleting refrigerant with a 25% annualized leak rate.

  2. B

    A 60-pound comfort-cooling appliance containing only substitute refrigerants with an 11% annualized leak rate.

  3. C

    A 60-pound commercial appliance containing an ozone-depleting refrigerant with a 21% annualized leak rate.

  4. D

    A 60-pound commercial appliance containing an ozone-depleting refrigerant with a 19% annualized leak rate.

13
Open ended
1 point

An industrial process refrigeration appliance has a full charge of 60 pounds of ozone-depleting refrigerant and an annualized leak rate of 32%. Explain whether corrective action is required, give the general repair or retrofit/retirement-plan deadlines, and state when the two verification tests are performed.

14
Choose one
1 point

Which statement correctly describes the appliance types covered by Type II certification?

  1. A

    Medium-, high-, and very-high-pressure appliances, except small appliances, motor-vehicle air conditioners, and MVAC-like appliances

  2. B

    All appliances that use refrigerant, including small appliances and motor-vehicle air conditioners

  3. C

    Only high-pressure appliances, excluding medium- and very-high-pressure appliances

15
Choose one
1 point

A technician is pressure-testing a refrigeration system for leaks. Which approach is appropriate?

  1. A

    Use compressed air with a pressure regulator

  2. B

    Use regulated nitrogen with a pressure regulator and relief protection

  3. C

    Use oxygen with a pressure-relief device

16
Written response
1 point

Before removing oil, what is the maximum pressure allowed in the appliance or isolated section? Enter the value in psig.

17
Choose one
1 point

A technician recovers refrigerant from one system and plans to use it in another system. In which situation may it be returned without first being reclaimed by an EPA-certified reclaimer?

  1. A

    Recovered refrigerant may be resold to a new owner without reclamation if it is clean

  2. B

    Recovered refrigerant may be returned to another system owned by the same person

  3. C

    Recovered refrigerant must always be reclaimed before it can be returned to the same system

18
Choose one
1 point

A technician plans to use system-dependent recovery equipment on an appliance with a full charge of 18 pounds. Under what condition is this equipment permitted?

  1. A

    It may be used on any charge if the appliance is high-pressure

  2. B

    It may be used only when the appliance contains less than 50 pounds of refrigerant

  3. C

    It may not be used on an appliance with a full charge over 15 pounds unless permanently attached as a pump-out unit

19
Written response
1 point

Under the EPA leak-repair program, what annualized leak-rate trigger applies to comfort cooling appliances? Enter the percentage-point value.

20
Choose one
1 point

A system is under vacuum during service. What must a technician do regarding its hermetic compressor?

  1. A

    Do not energize the hermetic compressor while the system is under vacuum

  2. B

    Energize the compressor briefly to confirm the vacuum reading

  3. C

    Energize the compressor only if the system contains no liquid refrigerant