Impoundment dams block the movement of silt downstream and cause silt to back up behind the dam. This is a problem because the built-up silt can cause areas of low oxygen called _______________ sediments
Fill in the blank(s) with the appropriate word(s).
anoxic
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Reciprocating weight is also called ________
A) Balance weight B) Inertial weight C) Bob weight D) Rotating weight
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When climbing a ladder, a person should always ________________________ and maintain three points of contact.
What will be an ideal response?
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What pressure units are used for measuring duct pressures?
A) Psig B) Inches water column C) Psia D) Inches of mercury
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Prescriptive-type tables for use in project specifications have been developed by the _____
a. American Cement Specification Board b. American Concrete Institute c. American Concrete Council d. American Cement Manufacturers? Association
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