Question 169General Subjects - Assistant Engineer

The correct answer is D) all of the above. The pressure indicated by a hydraulic system pressure gauge is the result of the fluid flow overcoming the load applied to the system, the resistance of the internal components, and the internal resistance to flow. All of these factors contribute to the overall pressure reading. The pressure is created by the pump forcing the fluid through the system, and this pressure must be high enough to overcome the various resistances and applied loads in order to maintain the desired flow and function of the hydraulic system. The other answer choices are incorrect because they only address one or two of the factors that contribute to the overall system pressure.