GWWI Water Distribution Practice Test 2025 – Comprehensive All-in-One Guide to Exam Success!

Question: 1 / 400

What is the leading cause of bearing failure in water distribution systems?

Overheating

Overgreasing

The leading cause of bearing failure in water distribution systems is insufficient lubrication. Proper lubrication is crucial for the smooth operation of bearings, as it reduces friction between moving parts. When lubrication is inadequate, it can lead to increased friction, heat generation, and ultimately premature wear or catastrophic failure of the bearings.

Insufficient lubrication can occur for various reasons, including improper maintenance practices, failure to monitor lubricant levels, or use of the wrong type of lubricant. As the lubricant breaks down or is depleted, it becomes less effective at reducing friction, eventually resulting in increased wear on the bearing surfaces. This wear can lead to issues such as overheating, noise, and eventual bearing failure.

Other options listed may contribute to bearing issues, but they are subordinate to the critical importance of maintaining appropriate lubrication levels.

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Insufficient lubrication

Contamination

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