____________________ corrosion takes place in or around threads, curves, or welds.
a. preferential
b. electromotive
c. stress
d.battery
ANSWER: a
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Which of the following is a form of precast construction?
a. steel frame b. masonry c. tilt-up d. none of the above
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A filled in flag symbol on the reference line indicates:
A) Use caution B) Inspection required C) Weld in the field D) Weld in the shop
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This is a stamping press operation that forms a single-line cut partway across the sheet without removing material.
What will be an ideal response?
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Another circuit routing pattern for floors is called a ____. This tubing pattern is not designed to bias heat output toward exterior walls. Instead, it is intended to provide the same average heat output over the entire floor area.
a. serpentine b. zigzag c. counterflow d. core
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