Name at least two purposes of a water conditioning system.
What will be an ideal response?
ANSWER: 1. to reduce minerals or acid
2. to remove suspended solids
3. to eliminate bacteria in the water to levels considered desirable, unobjectionable, and safe for human consumption
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What is the difference between a standard liquid line drier and a filter that is designed to be used following a flush procedure?
A) Regular driers will remove smaller particles but not much moisture. B) Cleanup driers are all bi-flow driers. C) Regular driers are all bi-flow driers. D) Cleanup driers will remove smaller particles but less moisture.
When prescribing a boundary condition for mass transfer at a solid–gas interface, why do we need to specify the side of the surface (whether the solid or the gas side)? Why did we not do it in heat transfer?
What will be an ideal response?
A wound rotor motor will not start if __________.
A. a stator winding is open B. the rotor winding is open
In its history, SkillsUSA has served more than _____.
a. 1.5 million members b. 5.5 million members c. 7.5 million members d. 10.5 million members