Which currently available refrigerant can no longer be installed in new equipment at the manufacturing
level?
a. HFC-134a
b. HCFC-22
c. HFC-410A
d. HFC-407C
b
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The ____________________ issues regulations designed to reduce health risks associated with
chemicals.
Fill in the blank(s) with the appropriate word(s).
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An STC of 45 is achieved without clips by using 2 x 4 studs and 2 x 6 plates.
Answer the following statement true (T) or false (F)
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What type of units are only required to have process stubs?
A) Type II and Type III B) Type II only C) Type I only D) All systems are required to have process stubs.
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Salmonella bacteria may reside in chicken and eggs that are:
A. uncooked B. Grade B C. produced by hobbyists D. all answers are correct
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