Question 266General Subjects - QMED
70% to passWhat should be done if localized scoring is discovered on a pump shaft sleeve during routine maintenance inspection?
AReassemble the pump and provide more water leak off for lubrication.
BReassemble the pump and set the governor to obtain a slower speed.
CCheck for parallel alignment of the sleeve radial face to the sleeve bore.
DCorrect the cause of scoring and install a new shaft sleeve.
AI Explanation
The correct answer is D) Correct the cause of scoring and install a new shaft sleeve. This is the correct answer because localized scoring on a pump shaft sleeve indicates wear or damage to the sleeve, which could lead to further issues with the pump's performance and integrity. The proper course of action is to determine the root cause of the scoring and address it, then install a new shaft sleeve to restore the pump to its intended condition. The other options are incorrect because they do not adequately address the issue. Reassembling the pump without resolving the root cause (A and B) could lead to continued or worsened scoring, while simply checking the alignment (C) does not fix the underlying problem.
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