BME 505 HW1

can you please find the solution for this?

I want you to draw a ladder logic diagram of a garage door to control it by PLC. In my case we have different inputs and outputs and all of them gotta be used in the diagram. I can perfectly interpret the diagram so no need to explain it, I will just require you to draw it. INPUTS : open push button ( OPB ) - close push button ( CPB ) - open limit switch ( OLS ) - close limit switch ( CLS ) - obstacle detection sensor ( ODS ) - safety sensor ( SS ) - emergency stop push button ( ESPB ) - reset button ( RB ) OUTPUTS : motor starts ( MS ) - motor stops ( MSTP ) - motor forward ( MF ) - motor reverse ( MR ) - Error display ( ER ) OPERATİNG MODES : automatic mode ( AM ) - manual mode ( MM ) NECESSARY TIMERS : T1 ( delay door movement after obstacle detection ) - T2 ( delay door movement after reversing ) Here is my excercise for today. Please I am requiring a good logic diagram taking into consideration all what was mentioned before. so to sum up, I want you to write a logic ladder diagram…

dear eng pls ans quickly  thanks

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Pulley C Spring Scale Figure 3 (d) A long cord of negligible mass is wrapped around a third pulley, Pulley C, and attached to a spring scale, as shown in Figure 3. The spring scale is pulled downward so that it exerts a constant force of magnitude Fs on the cord. As the spring scale moves down a significant distance, the vertical portion of the cord moves closer and closer to the center of the pulley. Predict how the net torque exerted on the pulley and the rotational kinetic energy of the pulley will be changing, if at all, as the spring scale moves downward and the vertical portion moves closer to the center of the pulley. Net torque: Increasing Decreasing Not changing Rotational kinetic energy: , Increasing Decreasing Not changing Briefly provide reasoning for your predictions. I x? X2 Ω !!

d) Chad and Dave are moving in the ground frame. Shouldn't they therefore measure less time between the events than Bruce? Explain why the "moving clocks run slow" idea is very misleading here.

Q1. a) List two examples of open-loop systems in practice and explain why these are open-loop systems. List two examples of closed-loop systems in practice and explain why these are closed-loop systems. b) Explain why closed-loop systems are more accurate.

Technical graphics are the preferred method for communicating designs during a design process. True False

Question 45 is based on the following picture. Reprinted with permission from Popular Science magazine, ©2000, Times Mirror Magazines, Inc. 45. Stuart Wilkinson, the engineer of "Chew- Chew" said, "we stole the idea of eating food from the biological world, but we are marrying that idea to useful robotic capabilities." Which of the following would not be an application of Stuart Wilkinson's theory? A. A leaf mulcher that feeds on foliage B. a trash compactor that feeds on garbage dos C. a lawn mower that feeds on grass bos 9D. a garden cultivator that feeds on soil clippings E. a recycling truck that feeds on petroleum conjo

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Hartley Electronics, Inc., in Nashville, producesshort runs of custom airwave scanners for the defense industry.The owner, Janet Hartley, has asked you to reduce inventory byintroducing a kanban system. After several hours of analysis, youdevelop the following data for scanner connectors used in onework cell. How many kanbans do you need for this connector?Daily demand 1,000 connectorsLead time 2 daysSafety stock 12 dayKanban size 500 connectors

Using "Subjective Digital Design", please develop the Boolean equation for the problem statement given: This CNC machine controller allow operation (represented by O) of the machine if there is a part in the vice (determined by a sensor P) and the spindle is fully retracted (determined by another sensor R) or a manual override (M) button is pressed by the operator.