FREE AND STUDY GAMES ABOUT CFC TYPE 3 EXAM

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FREE AND STUDY GAMES ABOUT CFC TYPE 3 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -20 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Do an ozone-depleting refrigerant need to be removed or mothballed?

Answer:

No, an appliance using an ozone-depleting refrigerant does not need to be removed or mothballed by storing in a warehouse at the facility.Question 2: The use of a severely oversized vacuum pump could cause what to happen?

Answer:

Trapped water to freeze when evacuating/dehydrating a system.

Question 3: Who keeps the records of leak inspections and for how long?

Answer:

The owner or operator of the equipment is responsible of keeping the records and should be kept on file for 3 years.Question 4: If a chiller with a charge of 200 lb of an ozone depleting refrigerant has passed the initial verification leak test a follow up test must be conducted within how many days?

Answer:

10 days

Question 5: What will happen if you cool the recovery cylinder?

Answer:

It speeds the recovery process or removal of refrigerant charge from a system.

Question 6: Do you use a trace amount of the refrigerant for leak detection?

Answer:

Yes, when necessary dry nitrogen with a trace of the system's design refrigerant should be used for leak detection.Question 7: What could happen if a leak test was done on a low-pressure refrigeration chiller with nitrogen in excess of 10psig?

Answer:

It could cause the rupture disc to fall.

Question 8: Can a system greater than 15 pounds total charge be used?

Answer:

No, EPA regulations prohibit use when appliance contains over 15 pounds of refrigerant.Question 9: How many months do the owner or operator or have to retire a leaking appliance?

Answer:

The owner has 18 months to retire a leaking appliance if the replacement appliance will use a refrigerant exempt from the venting prohibition.

Question 10: How many pounds of refrigerant exceeds the threshold leak?

Answer:

If an appliance with 50 or more pounds of a regulated refrigerant has exceeded the threshold leak rate,the owner has 30 days to repair the appliance.

Question 11: What should you look for while inspecting hermetic systems?

Answer:

You should look for traces of oil when first inspecting an hermetic system.

Question 12: What is used to determine if a tube is leaking?

Answer:

A hydrostatic tube test kit.

Question 13: How does moisture most frequently enter the refrigerant system in low-pressure chillers?

Answer:

Through leaks from areas with gaskets or fittings.

Question 14: Where is the refrigerant receiver located?

Answer:

It is typically located in the liquid line.

Question 15: Why do low-pressure chillers require purge units?

Answer:

Because they operate below atmospheric pressure.

Question 16: What does high head pressure indicate?

Answer:

It indicates air in a low-pressure system and that the purge unit may not be operating properly.

Question 17: what is considered an (IPR) Industrial process refrigeration?

Answer:

If a company uses 55% of its systems cooling capacity to one of its manufacturing lines or refrigeration and 45% of its cooling capacity to air condition the office spaces.Question 18: What is the maximum test pressure when leak testing a low-pressure centrifugal chiller with nitrogen?

Answer:

10 psig.

Question 19: When removing refrigerant oil what should it be heated to?

Answer:

130 degrees F Question 20: Because a low-pressure system operates below atmospheric pressure (in a vacuum), leaks in the gaskets or fittings will cause what to enter the system?

Answer:

Air and moisture.