Why are some reclaimed refrigerants classified as hazardous materials?
A) They are mixed with other oils.
B) They have been recycled before being reclaimed.
C) They are from pre-1993 systems.
D) They have been through sealed systems.
A
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What will be an ideal response?
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What is the maximum working pressure for a low-pressure steam boiler?
A) 160 psi B) 10 psi C) 100 psi D) 15 psi
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The input signal applied to a P/I transmitter should be ____________________ psi when the span adjustment is made.
Fill in the blank(s) with the appropriate word(s).
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Special features in books that help readers locate information include _____
A) drawings and photographs B) dictionaries and encyclopedias C) tables of content, indexes, and glossaries D) safety-related cautions and warnings
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