PHYS 204A Midterm: PHYS 204A Chico State Exam 1 Fall 08
Document Summary
Answer all of the following 6 questions in the space provided below the question. 12/10/02: [5] sketch the nfpa schematic symbol for an adjustable pressure relief valve and the symbol for a pressure regulator. How are the operational characteristics of these two valves different: [5] sketch the three common photoelectric proximity sensor configurations: through-beam, reflective, and cross-beam. Give the nfpa schematic symbol for one of each type of valve: [15] a hydraulic system is shown in the figure below. Identify each of the components labeled in the figure (#1 to #7: describe the operation of the system. Use the component labels and be complete and thorough in your description. 7: [15] a fluid power system and its ladder logic controls are shown below. Use the rung labels and be complete and thorough in your description. K30: [40] a local manufacturer has a need for a pneumatic system controlled by a plc.
