On steam turbines, carbon glands are:

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Multiple Choice

On steam turbines, carbon glands are:

Explanation:
Carbon glands are made from a carbon material (graphite) that naturally provides lubrication between sliding surfaces. This self-lubricating property lets the gland packing seal effectively in the high-temperature steam without needing an external oil film from the main oil pump, seal oil pump, or governor oil. The graphite in the carbon packing forms a thin lubricating film as the gland rides along the shaft, reducing wear and maintaining a good seal in service. That’s why the self-lubricating option is the best description.

Carbon glands are made from a carbon material (graphite) that naturally provides lubrication between sliding surfaces. This self-lubricating property lets the gland packing seal effectively in the high-temperature steam without needing an external oil film from the main oil pump, seal oil pump, or governor oil. The graphite in the carbon packing forms a thin lubricating film as the gland rides along the shaft, reducing wear and maintaining a good seal in service. That’s why the self-lubricating option is the best description.

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