🔍 Key Concepts

• Centrifugal pump bearings and what typically causes them to wear quickly • Effects of misalignment between motor and pump shaft • How cavitation affects internal pump components vs bearings

💭 Think About

• Think about which condition would put the most continuous, direct mechanical load or vibration on the bearings themselves. • Ask yourself: which option, if present for a long time, would cause the bearing to run out of true or under uneven load? • Consider which options mainly cause hydraulic issues (flow, pressure, vapor bubbles) versus mechanical loading on rotating parts.

✅ Before You Answer

• Identify which choices mainly cause hydraulic damage to impellers and casings rather than bearings. • Consider which condition would show up as excessive vibration and heat at the bearing housings during alignment checks. • Eliminate any options that are more about seal/leak problems than direct bearing loading.