What prevents the water in a cooling tower from freezing in cold weather?
What will be an ideal response?
A sump heater prevents freezing. Antifreeze products may also be added.
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A junction point is referred to as a ____.
a. point b. terminal c. cap d. node
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Stem rust can have up to how many different spore stages?
a. two c. five b. three d. seven
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In the expression 4-2, 4 is the ________
Fill in the blank(s) with correct word
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An advantage of a removed section has over a revolved section is that ____.
A. a great deal of detail can be shown more effectively if the section is removed B. break lines are not necessary when using removed sections C. the section can exactly be shown in the place where the cutting plane line is D. both a and c E. none of the above
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