CWB WELDING INSPECTOR Questions & 100% Correct Answers
CWB WELDING INSPECTOR Questions & 100% Correct Answers As a metal heated: a) Energy is added to the structure b) The atoms move further apart c) The atoms vibrate more vigorously d) The metal expands e) All of the above - ANSWER e) All of the above The state of matter, which exhibits the least amount of energy, is: a) Solid b) Liquid c) Gas d) Quasi-liquid e) None of the above - ANSWER a) Solid A problem occurring in weldments caused by the nonuniform heating produced by the welding operation is: a) Porosity b) Incomplete fusion c) Distortion d) Slag inclusions e) None of t he above - ANSWER c) Distortion Which of the following is not a method used to eliminate or reduce residual stresses? a) Vibratory stress relief b) External restraint c) Thermal stress relief d) Peening e) Annealing - ANSWER b) External restraint The type of alloying in which the alloy atoms are located in the spaces between the atoms of the parent metal is referred to as: a) Atomic alloying b) Substitutional alloying c) Space alloying d) Interstitial alloying e) None of the above - ANSWER d) Interstitial alloying Rapid quenching of steel from the austenitic range results in a hard, brittle structure known as: a) Pearlite b) Carbide c) Cementite d) Ironite e) Martensite - ANSWER e) Martensite
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cwb welding inspector questions 100 correct
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