Question 181General Subjects - Assistant Engineer

The correct answer is D) All of the above. A reservoir in a hydraulic system serves multiple functions: 1) It separates air from the oil, allowing air bubbles to rise to the surface and be removed from the system. 2) It traps foreign matter, such as dirt and debris, preventing them from circulating through the system and causing damage. 3) It helps dissipate heat generated by the hydraulic components, maintaining the proper operating temperature of the fluid. The other options are incorrect because they only describe one of the three main functions of a hydraulic reservoir, whereas the correct answer encompasses all three critical roles the reservoir plays in a hydraulic system.