Atmospheric contamination of molten weld metal occurs ____.
A. as it travels across the arc gap and within the pool before it solidifies
B. after it solidifies
C. infrequently
D. when the atmosphere reacts with the flux inside the electrode
Answer: A
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Define the following terms:
a. Blackbody temperature b. Calorie c. Planck’s constant d. Specific heat e. Speed of light f. Stefan – Boltzmann constant What will be an ideal response?
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Grooved pipe welds are made up of several separate weld joints.
Answer the following statement true (T) or false (F)
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Las propiedades físicas de un conductor de cobre N.° 4/0 se encuentran en:
a. NEC® Tabla 310.16. b. NEC® Capítulo 9,Tabla 8. c. NEC® Capítulo 9,Tabla 1. d. NEC® Tabla 310.13(A).
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Identify the dependent variable(s)
What will be an ideal response?
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