In a piston engine dry sump oil system, where are the oil temperature and pressure sensed?

In a dry sump oil system of a piston engine, it is crucial to monitor both oil temperature and pressure to ensure proper lubrication and engine performance. The oil temperature is typically measured when the oil leaves the tank because this provides an indication of the oil's condition after it has been stored, allowing for a more accurate assessment of how well the oil is performing in terms of heat absorption and viscosity.

The pressure, on the other hand, is measured when the oil is leaving the pump. This is important because the pressure reading right after the pump provides insight into the oil’s ability to circulate through the engine effectively. If the pressure is too low, it could indicate that there are issues with the oil flow or that the pump is not functioning properly, which can lead to inadequate lubrication.

This combination of monitoring temperature as the oil exits the tank and pressure at the pump exit is key to maintaining the engine's health and preventing potential damage due to overheating or insufficient oil flow. Thus, this choice correctly identifies the specific points where these measurements are taken, ensuring the engine's lubrication system is functioning optimally.