Red staining of fixtures is a symptom of which type of water problem?

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


ANSWER: d

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The R-value of a concrete tilt-up wall is 1.20. What is its R-value considering air-to-air heat transfer through it?

What will be an ideal response?

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Which of the following methods would do most to ensure that a frame hole was exactly 3/4-inch in size?

A. Finish with a 3/4-inch taper reamer B. Finish with a 3/4-inch drill bit C. Blow through with a 3/4-inch, carbon-arc electrode D. Use a hand-driven auger drill

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Cover measurement commences at the top surface of any direct burial wiring method and ends at the ____ of the finished grade's top surface.

A. closest point B. midpoint C. farthest point D. adjacent corner

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In rack/slot addressing the slot location of the PLC processor is indicated in the address

Indicate whether the statement is true or false

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