
EPA 608 Type III
Flashcard
•
Science
•
9th Grade - University
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the purpose of a purge unit in a low pressure chiller?
Back
A purge unit is used to remove non-condensables from the system.
2.
FLASHCARD QUESTION
Front
What is the technician's responsibility if EPA regulations change after certification?
Back
It is the technician's responsibility to comply with all future changes.
3.
FLASHCARD QUESTION
Front
What is the annual leak rate threshold for comfort cooling systems with more than 50 lb. of refrigerant according to EPA regulations?
Back
15%.
4.
FLASHCARD QUESTION
Front
What pressure is a high-pressure cut-out set for on a recovery system used on low-pressure refrigeration systems?
Back
10 psig.
5.
FLASHCARD QUESTION
Front
Where should a water box leak be tested after the water has been removed?
Back
At the drain valve.
6.
FLASHCARD QUESTION
Front
What are non-condensables in refrigeration systems?
Back
Non-condensables are gases that do not change into a liquid at the operating temperatures and pressures of the system, such as air.
7.
FLASHCARD QUESTION
Front
Why is it important to repair leaks in refrigerant systems?
Back
To prevent environmental harm and comply with EPA regulations.
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