Water that has a salt content lower than ocean water and higher than fresh water is called _____
A) brackish?
B) aerated?
C) oxygen enriched?
D) endothermic
A
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In a crisis that entails a public health risk, you should give the public the information they need:
a. in a drawn-out manner b. only upon request c. in hard-to-understand language d. quickly
Grain dust, flour, wood dust, and cotton lint have produced disastrous explosions, so the prevention of ____ helps avoid such dust explosions.
a. vibrations b. potential energy c. static charges d. direct currents
A thorough knowledge of the properties of matter is necessary to:
A) Better understand what happens to various forms of matter and the reasons why changes occur when substances are heated or cooled. B) Know where to locate the heating or cooling equipment and system in a building structure. C) Design air conditioning equipment and systems for a building structure. D) Explain to a customer what type of heating or cooling system is needed to accommodate the building load requirements.
PLCs are:
A) Only used for single machine control. B) Not general purpose automation controllers. C) Designed to work in harsh industrial environments. D) All of the above.