For testing concrete from paving mixers, the whole batch should be discharged and samples taken from _____.

a. three locations
b. five locations
c. seven locations
d. ten locations


Answer: B

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Cold plates are usually filled with a ____.

A. brine solution B. eutectic solution C. sodium chloride or calcium chloride solution D. All of the above.

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Read and record the vernier caliper measurements on the scale shown here:

What will be an ideal response?

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Materials that are made from atoms containing seven or eight valence electrons are known as ____.

a. insulators b. conductors c. semiconductors d. attractors

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Spiral stairs are the simplest design.

Answer the following statement true (T) or false (F)

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