Explain what preheating is and why it would be used.
What will be an ideal response?
Preheating is the application of heat to the metal before it is welded. This process helps to reduce cracking, hardness, distortion, and stresses by reducing the thermal shock from the weld and slowing the cool-down rate. Preheating is most often required on large, thick plates, when the plate is very cold, on days when the temperature is very cold, when small diameter electrodes are used, on high-carbon or manganese steels, on complex shapes, or with fast welding speeds.
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A. 12 B. 10 C. 8 D. 6
Which is not one of the seven traits of a leader?
A. Disruptive B. Authenticity C. Focus D. Continuous improvement
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Indicate whether the statement is true or false
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