Which consequence results when rapid torch movements overheat pipeline steel?

💡 Explanation

Stress corrosion cracking accelerates due to hydrogen diffusion caused by increased heat input; the mechanism is hydrogen embrittlement. Because the rapid heat causes hydrogen to concentrate at grain boundaries, the steel becomes susceptible, therefore stress and cracking occurs, rather than magnetic or arc blow or slowed cooling.

• Which outcome occurs when aircraft landing gear's oleo strut experiences excessive stiction?
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• Which outcome occurs when a robotic arm's resolved-motion rate control relies predominantly on numerical approximations of the inverse Jacobian matrix?
• Which risk increases when excessive Optical Carrier (OC) signals are added to a SONET fiber optic network?
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