What is the function of the turbine auxiliary oil pump?

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Multiple Choice

What is the function of the turbine auxiliary oil pump?

Explanation:
The key idea is that startup protection for the turbine relies on having oil pressure ready before the main pump takes over. The turbine auxiliary oil pump provides that initial pressurized lubrication, circulating oil to the bearings and moving parts so they don’t start up dry. This prevents excessive wear and scoring as the turbine accelerates. Once the main lubrication pump reaches normal pressure, the auxiliary pump typically stops or runs as backup. This function isn’t about venting exhaust or delivering cooling water, and while oil pressure does feed hydraulic components, the primary purpose at startup is to establish lubrication pressure.

The key idea is that startup protection for the turbine relies on having oil pressure ready before the main pump takes over. The turbine auxiliary oil pump provides that initial pressurized lubrication, circulating oil to the bearings and moving parts so they don’t start up dry. This prevents excessive wear and scoring as the turbine accelerates. Once the main lubrication pump reaches normal pressure, the auxiliary pump typically stops or runs as backup. This function isn’t about venting exhaust or delivering cooling water, and while oil pressure does feed hydraulic components, the primary purpose at startup is to establish lubrication pressure.

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