Question 263General Subjects - QMED

The correct answer is C) replaced with a satisfactory spare. A bent or distorted pump shaft should normally be replaced with a satisfactory spare, as it is not advisable to attempt to straighten or repair a damaged shaft. Reconditioning by metalizing and machining (option A) or repairing by a welding process (option D) may not fully restore the shaft to its original condition and could compromise its structural integrity. Applying heat and torsion to straighten the shaft (option B) is also not recommended, as this could further damage the shaft. The correct approach is to replace the damaged shaft with a spare that is in satisfactory condition, as this ensures the pump will operate safely and reliably in accordance with Coast Guard regulations and best practices.