At 1000 psi, how much will hydraulic oil compress?

At 1000 psi, the correct amount of compression for hydraulic oil is appropriately represented in the context of its incompressibility. Hydraulic fluids, including hydraulic oil, are typically only slightly compressible, which is a key characteristic that ensures efficient energy transfer in hydraulic systems. A common property is that these fluids are considered incompressible for practical calculations, but in reality, they do experience very minimal compression under pressure.

The choice indicating a compression of 1/2% accurately reflects this property. At higher pressures, while the fluid remains largely incompressible, there is still a minute amount of compression that can occur, quantified typically within a range of fractions of a percent. Therefore, the estimate of 1/2% at 1000 psi aligns well with the behavior of hydraulic oil under pressure and is a practical representation for real-world applications.

Options indicating 1%, 3", and 1" in 8ft do not correlate with the known compressibility of hydraulic oils, as those figures suggest a more significant change in volume or length, which does not occur to such an extent under standard operating pressures in hydraulic systems.