Aluminum-faced forms are unsuitable for architectural-concrete applications because they _____.
a. react chemically with concrete
b. are difficult to erect
c. are not sufficiently strong
d. are available only in small sizes
a. react chemically with concrete
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On magnetic contactors, which contacts are said to be normally open (N.O.)?
a. All contacts that are functioning correctly b. Those that are together when the relay is de-energized c. Those that are apart when the relay is de-energized d. All contacts that are not functioning correctly
Why is it important for all scientists to use the same scale of measurement?
What will be an ideal response?
The graphical interface on your computer that lets you type in the URL (web address) for a particular site is known as your Web _____
Fill in the blank(s) with correct word
History is filled with examples of irrigation systems that brought about prosperity that was lost due to ______________________
Fill in the blank(s) with correct word