Questions: What are the advantages of using hydraulic systems rather than mechanical systems to operate automobiles or the control surfaces of an airplane? Check All That Apply They can work with very little energy loss to frictional heating. Hydraulic systems also provide very sensitive controls with no mechanical lag because of the near incompressiblity of the fluids used in them.

Solution Steps

We need to evaluate the given statements to determine if they are advantages of using hydraulic systems over mechanical systems in automobiles or airplane control surfaces.

The first statement is: "They can work with very little energy loss to frictional heating."

Hydraulic systems are known for their efficiency, but they do experience some energy loss due to frictional heating. However, this loss is generally less significant compared to mechanical systems with many moving parts. Therefore, this statement is partially true but not entirely accurate.

The second statement is: "Hydraulic systems also provide very sensitive controls with no mechanical lag because of the near incompressibility of the fluids used in them."

This statement is accurate. Hydraulic systems use fluids that are nearly incompressible, which allows for precise and responsive control with minimal lag. This is a significant advantage over mechanical systems.

Final Answer