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Discuss the following: Which resources are being wasted and why?

  1. Transport
  2. Inventory
  3. Motion
  4. Waiting
  5. Over-processing
  6. Overproduction
  7. Defects

A cable one mile long and 0.50 inch in diameter is composed of a steel core 0.25 inch in diameter and the

outside shell is aluminum. The resistance of the cable is _____ is Ps and Pa 57.4 and 17.5 ohm Cmil/ft,

respectively


15. The tooth thickness of a gear is 0.5 in. and its circular pitch 1.0 in. Calculate the dedendum of the gear.


14. An internal gear is set up with a 5 in diameter pinion and center distance of 18 inches. Find the diameter of internal gear.


7. It is generally recommended and normal for a designer to add a hunting tooth to evenly distribute the wear on meshing teeth like a 53 teeth mesh with 30 teeth pinion. Find the rotation of pinion to mesh same pair of teeth again.


13. A pump that operates a head of 30 m is used to deliver 80 liters per second of water at an efficiency of 85%. The pump is driven by a diesel engine by means of chain and sprocket with a service factor of 1.3. If horsepower per strand is 25, find the approximate number of strands needed.


8. Find the standard distance between sprocket having 4 in and 16 in diameters.


7. A chain with speed 800 fpm has driving sprocket turns at 900 rpm. If the pitch of chain is ¾ in, find the number of teeth of driving sprocket.


Calculate vo(t) and show the phasor diagram of the currents in the given circuit.


a)     Draw a block diagrams of the following:                                                                                                                                

- a 4-to-1 multiplexer. 

- a 4-to-2 encoder.

How is the 4-to-2 encoder different from a 4-to-1 multiplexer?

 


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