Water Distribution Grade 1 Certification Practice Exam

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Study for the Water Distribution Grade 1 Certification Exam. Engage with flashcards and carefully curated multiple choice questions, each supported by hints and explanations. Prepare for your certification test!

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What is a possible result of over greasing a bearing?

Increased lubrication
Excessive vibration
Extreme friction in the bearing chamber causing heat and scoring of the shaft
Improved performance

The correct answer is: Extreme friction in the bearing chamber causing heat and scoring of the shaft

Over greasing a bearing can lead to extreme friction in the bearing chamber, resulting in overheating and scoring of the shaft. When too much grease is applied, it can create an increased pressure within the bearing assembly. As the excess grease accumulates, it may not be able to escape, leading to restricted movement and higher resistance within the bearing. This situation can generate excessive heat, which can damage the bearing surfaces and the shaft itself, causing scoring or wear. The optimal lubrication level is essential for maintaining proper functioning and reducing wear; too much grease disrupts this balance. As the heat increases, it can lead to premature failure of the bearing and associated components due to thermal degradation. Therefore, maintaining the correct amount of lubrication is critical for optimal performance and longevity of the bearing system.