Which risk increases when submersible pump bearings operate without adequate lubrication at depth?

A)Thermal runaway from frictional heating✓

B)Erosion from increased fluid velocity

C)Corrosion from chemical contamination

D)Vapor lock from dissolved gases

💡 Explanation

When submersible pump bearings lack lubrication, increased friction generates heat, raising the bearing temperature; at depth, the limited cooling causes further temperature rise, potentially leading to thermal runaway. Therefore thermal runaway becomes a high risk, rather than velocity, corrosion, or vapor lock which require different mechanisms.

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Which risk increases when submersible pump bearings operate without adequate lubrication at depth?

💡 Explanation

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