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Free Practice Quiz Question List

1 Section 608 Core Principles Online Quiz Questions

Use this free practice quiz with 20 questions to review 1 Section 608 Core Principles, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

True or false: Some HFC refrigerants have zero ozone-depletion potential but high global-warming potential.

  1. A

    True

  2. B

    False

02
Choose one
1 point

A technician services a high-pressure stationary appliance that is neither a small appliance nor a motor-vehicle air conditioner. Which Section 608 certification type covers this equipment?

  1. A

    Type I

  2. B

    Type II

  3. C

    Type III

  4. D

    Universal

03
Written response
1 point

What is the term for removing refrigerant from an appliance and storing it in an external container without requiring cleaning or testing?

04
Fill in the blank
1 point

In the stratosphere, ultraviolet light can release atoms from certain ozone-depleting substances; these atoms destroy ozone.

05
Choose one
1 point

After recovering refrigerant and opening a system for service, a technician uses a vacuum pump to remove air and moisture. Which process is the technician performing?

  1. A

    Recovery, because it removes air and moisture from an opened system

  2. B

    Recycling, because it cleans refrigerant for reuse

  3. C

    Evacuation, because it uses a vacuum pump to remove air and moisture

  4. D

    Reclamation, because it verifies refrigerant purity

06
True or false
1 point

True or false: A technician may intentionally release a small amount of regulated refrigerant to speed up service.

  1. A

    True

  2. B

    False

07
Written response
1 point

What Section 608 certification covers small appliances, high- and very-high-pressure equipment, and low-pressure equipment?

08
Fill in the blank
1 point

When pressure-testing a system with nitrogen, use a and observe appropriate pressure limits.

09
Choose all
1 point

Select all methods that can help a technician locate a leak in a refrigeration system.

  1. A

    An approved electronic leak detector

  2. B

    An ultrasonic detector

  3. C

    A soap-bubble solution

  4. D

    A standing pressure test, used by itself

  5. E

    A vacuum-decay test, used by itself

10
Choose one
1 point

A comfort-cooling appliance contains 50 pounds or more of ozone-depleting refrigerant. At what annual leak rate does the stated EPA leak-repair trigger apply to this appliance category?

  1. A

    5%

  2. B

    20%

  3. C

    10%

  4. D

    30%

11
Choose one
1 point

A technician completes a training course, but the certification test was not administered through an EPA-approved program. Which statement best describes the test's status under the material's requirements?

  1. A

    Any equipment manufacturer may administer the test without program approval

  2. B

    The test must be administered through an EPA-approved program

  3. C

    A technician's employer may issue Section 608 certification without a test

  4. D

    Certification is granted automatically after completing equipment training

12
Choose all
1 point

Select all practices that are consistent with safe recovery-cylinder handling.

  1. A

    Use approved, reusable recovery cylinders

  2. B

    Keep cylinders upright and secured

  3. C

    Refill disposable cylinders if they appear undamaged

  4. D

    Protect cylinders from heat and follow the 80% maximum fill guideline

  5. E

    Fill cylinders completely so no space remains for vapor

13
True or false
1 point

True or false: A hermetic compressor may be energized briefly while the system is under vacuum to check whether it runs.

  1. A

    True

  2. B

    False

14
Open ended
1 point

Explain how recycling and reclaiming recovered refrigerant differ. Include the general requirement that applies before used refrigerant is resold to a new owner.

15
Written response
1 point

Which Section 608 certification type covers high- or very-high-pressure appliances, except small appliances and motor-vehicle air conditioners?

16
Choose one
1 point

A technician removes refrigerant from an appliance and stores it in an external container without cleaning or testing it. Which process is the technician performing?

  1. A

    Recycling

  2. B

    Recovery

  3. C

    Reclamation

  4. D

    Evacuation

17
Written response
1 point

After refrigerant has been recovered and a system opened for service, what process uses a vacuum pump to remove air and moisture?

18
Choose one
1 point

A pressure-decay test suggests that a system has a leak, but the technician needs to locate it. Which method from the options can help find the leak's location?

  1. A

    A standing pressure test alone

  2. B

    A vacuum-decay test alone

  3. C

    An approved electronic leak detector

  4. D

    Repeatedly topping off the system

19
Choose one
1 point

A technician is pressure-testing a refrigeration system for leaks. Which procedure follows the stated safety practices?

  1. A

    Use regulated nitrogen within appropriate pressure limits.

  2. B

    Use compressed air at a low pressure.

  3. C

    Use oxygen if the system contains no refrigerant.

  4. D

    Use unregulated nitrogen to reach the test pressure quickly.

20
Choose one
1 point

For a specified commercial refrigeration appliance containing 50 pounds or more of ozone-depleting refrigerant, which annual leak rate is the stated leak-repair trigger?

  1. A

    10%

  2. B

    20%

  3. C

    30%

  4. D

    50%