What should the technician do before loosening bolts or screws on a refrigeration system component or line?
What will be an ideal response?
Make sure the pressure inside the part has been relieved.
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A(n) ____________________ is a round seal with a square-cut cross section.
Fill in the blank(s) with the appropriate word(s).
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Plants help replenish Earth's oxygen supply by using _____ and giving off oxygen
a. Nitrogen dioxide c. Argon b. Carbon dioxide d. Nitrous oxide
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Section drawings are included as necessary to explain special features of construction.
Answer the following statement true (T) or false (F)
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Why is the automatic expansion valve not suited for systems with varying loads?
What will be an ideal response?
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