Problem 9.3 Operaton Management., Jay Heizer., Barry Render., Perason.,2011

Three department- Milling (M), Drilling (D) and Swaing (S) are assigned to three work area in Samuel Smith’s machine shop in Baltimore. The number of worki piece moved per day and the distance between the centers of the work area, in feet, are shown in the next column
It costs $ 2 to move 1 workpiece 1 feet
What is the cost ? Layout decision problem 9.3
Problem 9.5 Operaton Management., Jay Heizer., Barry Render., Perason.,2011

Registration of Southern University has always been a time of emotion, commotion, and lines. Students must move among four stations to complete the traying semiannual process. Last semester registration, held in the fieldhouse, is describes in figure. You can see that 450 students move from the paperwork station (A) to advising (B) and 550 went directly from A to picking up their class cards (C). Graduate students, who for the most part had preregistered, proceeed directly from A to the station where registration is verified and payment collected (D). The layout used last semester is also shown in figure. The register is preparing to set up this semester’s stations and is anticipating similar numbers
a)    What is the “load x distance” or “movement cost” of the layout shown
b)    Provide an improved layout and compute its movement cost Layout decision problem 9.5

Problem 9.11 Operaton Management., Jay Heizer., Barry Render., Perason.,2011

Standford Rosenberg Electronics want to establish an assembly line for producing a new product, The Personal Little assistant (PLA). The task, the times and immediate predecessors for the tasks are as follows
Rosenberg’s goal is to produce 180 PLA per hour
a)    What is the cycle time
b)    What is the teoritical minimum for the number of workstations that Rosenbertg can achieve in this assembly line
c)    Can the theoretical minimum actually be reached when workstations are assigned? Layout decision problem 9.11

Problem 9.13 Operaton Management., Jay Heizer., Barry Render., Perason.,2011

Rita Gibson Appliances wants to establish an assembly line to manufacture its new product, the Mini- Me Microwave Oven. The goal is to produce five Mini-Me Microwave Ovens per hour. The tasks, task time and immediate predecessors for producing one Mini-Me microwave are as follows:
a)    What is the teoritical minimum for the number of workstations that Gibson can achieve in this assembly line?
b)    Grapf the assembly line and assign workers to workstations, Can you assigned with the theoretical minimum ?
c)    What is the efficiency of your assigment Layout decision problem 9.13

Problem 9.17 Operaton Management., Jay Heizer., Barry Render., Perason.,2011

The Mach 10 is a one-person sailboat manufactured by creative leisure. The final assembly plan is in Cupertino California. The assembly area is available for production of the Mach 10 for 200 minutes per day (the rest of the time it isi busy making other products). The daily demand is 60 boats. Given the following information

a)    Draw the precedence diagram and assign tasks using five work stations
b)    What is the effieciency of the assembly line using your answer to (a)
c)    What is the theoretical minimum number of workstations
d)    What is the idle time per boat produced Layout decision problem 9.17