If the pH of the solution varies by a small amount, a(n) __________ controller is used to apply the acid or base.
A. on-off
B. proportional
Answer: A
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What two types of training may an employer provide under guidelines of the NFPA 70E electrical standard?
What will be an ideal response?
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The distance from the end of the pipe to the center of the fitting is called the _____.
a. run b. specifications c. pitch d. takeout
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Cream is said to have a lower ____________________ gravity than the rest of the milk, which causes it to float to the top and separate from the milk
Fill in the blank(s) with correct word
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What is the advantage of using colder thermal storage for storing off-peak cooling capacity?
A) pumps can move colder water more easily B) the air feels colder C) it takes less energy to make colder ice D) less flow is required for a given cooling load
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