Bathtub ring is caused by which of the following water problems?

a. turbidity
b. hardness
c. acidity
d. dissolved iron


ANSWER: b

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What type of signal is a continuously variable representation of a process variable?

A) Analog signal B) Process signal C) Digital signal D) Automatic signal

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A cable ABCD is pulled at end E by a force P (Figure P6.12). The cable is supported at point D by a rigid member DF. Compute the force P that produces a sag of 2 m at points B and C. The horizontal reaction at support F is zero. Compute the vertical reaction at F.

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The proper callout designations, dimensions for detailing, and properties for designing structural steel shapes are provided in the ____ by the American Institute of Steel Construction (AISC).

A. Manual of Steel Construction B. Structural Steel Detailing C. Guide to Steel Construction D. The Steel Construction Reference

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Cardinal Humbert wrote a treatise against simony that precipitated a crisis of

a. the ideology of vassalage. b. the Ottonian system of church control. c. relations with the eastern church. d. the royal ideology of the three orders.

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