2. Explain what work hardening is.
What will be an ideal response?
Work hardening is the hardening of a material when cold worked. Work hardening can be significant with non-heat-treated alloys, and because of this, the material can have significant cracking. Work hardening can be lessened by heating aluminum to soften it for straightening. To make sure that cracking did not occur during repairs, technicians should afterwards test the area by using a dye penetrant.
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More than half (57 percent) of the world's mules are located in ____.
A. India and Mexico B. Mexico and Brazil C. China and Mexico D. Brazil and China
Preheating is required any time that the metal to be welded is below 30 degrees F because the cold metal quenches the weld.
Answer the following statement true (T) or false (F)
The resistance of a wire is inversely proportional to its length.
Answer the following statement true (T) or false (F)
Name two methods commonly used to unload a reciprocating compressor.
What will be an ideal response?