Which of these substances is used to pickle food?
a. fish oil c. sugar
b. salt d. vinegar
D
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Which of the following is generally not powered by a steam turbine, which gets its energy provided by a boiler?
A) Pumps B) Turbines C) Cooling towers D) Compressors
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The air flow on most structures that use a fossil fuel for a heat source have a(n) ____________________ that would be used as an air supply.
Fill in the blank(s) with the appropriate word(s).
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Brake drums are made from _________.
A. steel B. iron C. aluminum D. nickel
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Life safety branch installation and alternate power source connection shall provide that all functions (specified herein) be automatically restored to operation within ____ after interruption occurs.
A. 5 seconds B. 10 seconds C. 30 seconds D. 45 seconds
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