ME 360 Midterm: ME 360 Alabama Test3 Fall10
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Total of 25 out of 100 points for questions #1 to #6. Why is this the best type of proximity sensor for this application: [4] name and sketch two of the three different configurations of photoelectric proximity sensors. Over: [4] you have seen the component referred to as npn in several applications in me 360. Sketch the npn component, tell what it does and describe or sketch one application: [4] two common types of three-position hydraulic valves are shown below. Name the center position type of each valve and describe both an advantage and disadvantage of each in terms of holding cylinder positions and pump motor energy requirements: [4] match each phrase with the most appropriate lettered item: _______ converts mechanical energy into fluid: stop tube power energy. _______ converts fluid power energy into linear mechanical energy: motor, check valve, cylinder, pump, gerotor. _______ flow in one direction only: pressure relief valve.
