?What is a collection of values called? 

A. ?a distribution 
B. ?a central tendency
C. ?a standard deviation
D. ?a histogram


Answer: A

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Most engineering problems may be divided into two broad areas: steady and unsteady.

a. True b. False

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Hole diameters should dimensioned in views where they appear as:

A. symmetry lines B. hidden lines C. circles D. section lines

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The hydrogen end of a water molecule is attracted to positively charged cations such as Na+ and Ca2+

Indicate whether the statement is true or false

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What is an application of a counterbalance valve?

A. maintaining back pressure B. acts as a relief valve C. pressure reduction D. safety pop-off

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