Which bearings are located in the C sump?

The correct choice identifies the bearings that are specifically located in the C sump, which is crucial for understanding the configuration and maintenance of gas turbine systems.

In a gas turbine, the C sump is part of the lubrication system and is responsible for collecting oil from various bearings and components. The bearings located in the C sump help ensure the optimal function of the turbine by providing necessary support and reducing friction.

The identification of 5R and 6R bearings in the C sump indicates that these are integral components that participate in the engine's overall performance and efficiency. Understanding the specific location of these bearings can aid in maintenance procedures, troubleshooting, and ensuring the longevity of the gas turbine system.

Knowledge of bearing locations is essential for technicians, as it impacts the oil flow, cooling, and overall reliability of the gas turbine. Recognizing that options highlighting other combinations do not include 5R and 6R reinforces the correctness of identifying them as located in the C sump.