A ____ wall is a concrete or masonry wall supported at the top and bottom, designed to resist soil loads.

A. border
B. structure
C. boundary
D. retaining


Answer: D

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Review drawing number 523879C0A and then answer the question.

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What are the three most critical fasteners in an engine?

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A ______________________ is used to allow multiple people to install their locks on a piece of equipment that is being locked out.

What will be an ideal response?

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The tubing or pipe for natural gas supply to a gas heating unit is ____________________.

Fill in the blank(s) with the appropriate word(s).

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