Operations Management
17th Edition
ISBN: 9781259142208
Author: CACHON, Gérard, Terwiesch, Christian
Publisher: Mcgraw-hill Education,
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Question
Chapter 5, Problem 4PA
a)
Summary Introduction
To determine: The bottleneck.
b)
Summary Introduction
To determine: The flow rate for each flow unit.
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n a manufacturing process, a molded part spends 7 hours in inventory before being placed in a deburring machine, where the part is processed for 2 minutes. After deburring, the part spends 4 hours in inventory waiting for its turn on the polishing machine. The part then spends 7 minutes in polishing before waiting 6 hours in line to be painted. The part goes through a painting process that takes 7 minutes, then spends 11 hours in inventory before being shipped to the customer.
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A local bakery is renowned for its elaborately cecorated sheet cakes. Consider the following process information: One baker is ivailable to prepare the cake batter (measuring and mixing ingredients and then adding it to baking pans). On average, this takes 10 minutes to prepare two cakes, ie. to make enough batter for 2 cakes and to add the batter to 2 cake pans. Move time to add and remove them from the oven is neglig bile, it takes 32 minutes to bake cakes - the bakery has two ovens, each able to hold 2 cakes. The one pastry chef on staff puts on an amazing show that draws a crowd all day-each cake is decorated in 6 minutes. The bakery operates 8 hours per day.
Answer each of the following questions:
a. What is the cycle time (in minutes per cake) of each stage - preparing, baking, and decorating?
b. What is the dally process capacity? Explain.
c. If orders arrive at a rate of 3 cakes every 20 minutes, can the bakery meet the caily demand Explain,
Note: Be clear about how you…
C&A Candy produces two kinds of gumdrops: regular and sugar-free. The data on these gumdrops are given below:
Regular Sugar-Free
30
10
60
30
80
80
Demand (lbs per hour)
Changeover time (min)
Production rate (lbs per hour)
C&A first makes 60 pounds of regular gumdrops, then 20 pounds of sugar-free gumdrops, and then repeats this sequence. What is the utilization of
the production process?
Multiple Choice
O
O
O
25%
20%
50%
40%
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