What characteristic does the scavenge pump system have in a lubrication system?

The scavenge pump system in a lubrication setup is designed to remove excess oil from the engine components and return it to the oil sump. Its primary characteristic is that it has a larger capacity than the pressure pump. This is crucial because the scavenge pump must efficiently handle and recover all the oil that has circulated through the engine and is often contaminated with impurities.

Having a larger capacity allows the scavenge pump to accommodate the higher volume of oil that needs to be drained away from various engine parts, especially after lubrication has occurred. This ensures that the oil system remains effective and prevents any potential build-up of oil, which can lead to flooding or inadequate lubrication. The design keeps the lubrication system operating smoothly, maintaining proper lubrication under operational conditions.

Other options denote features that do not conform to the normal functioning of a scavenge pump in this context. For example, a bypass feature is not standard in scavenge pump systems as they are primarily focused on effectively removing oil rather than managing flow in case of a blockage. Similarly, having a smaller capacity than the pressure pump would not be effective in performing its primary function. The mention of a bifurcated tertiary drive system also doesn’t align with the typical design principles of scaven