What is the best way to warm a refrigerant cylinder?
A) By pouring boiling water over the cylinder B) Over a hot flame
C) With a torch D) In a bucket of warm water
D
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In commercial slab-on-grade structures, the top course of the foundation walls may serve as _____
a. raceways b. edge reinforcement c. sills d. edge forms
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Which refrigerant will likely become scarce after the year 2020?
A) HCFC-123 B) HFC-410A C) HFC-134a D) Ammonia
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The human body gives off heat by which of the following?
A. convection B. radiation C. conduction D. all of the above
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To protect a refrigeration compressor when refrigerant loss occurs, a ____________________ control is used.
Fill in the blank(s) with the appropriate word(s).
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