____ welding is accomplished by using roller-type electrodes.

A. Seam
B. Ultrasonic
C. Flash
D. Upset


Answer: A

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When a wraparound is used correctly, the two overlapping edges should be _____.

a. perpendicular b. aligned c. at a slight angle d. adjacent

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The spark ignition internal combustion engine developed by Nikolas Otto in 1876 uses ____ strokes in its cycle to produce power

a. two c. six b. four d. eight

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What is finishing lime used in?

What will be an ideal response?

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Hamsters are one of the most cold-tolerant rodents. Although not a true hibernator, at temperatures below 48ºF hamsters can enter a state of pseudohibernation

A. True B. False

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