Problem 14-7
Compute the takt time for a system where the total time per shift is 370 minutes, there is one shift, and workers are given 2 13-minute breaks and 30 minutes for lunch. Daily demand is 353 units. (Round your answer to 2 decimal places.)
Takt time minutes per cycle
Problem 14-8
What cycle time would match capacity and demand if demand is 173 units a day, there are 2 shift(s) of 458 minutes each, and workers are given three 35 minute breaks during each shift, one of which is for lunch or dinner? (Round your answer to 2 decimal places.)
Cycle time minutes per cycle
Problem 15-1
A manager at Strateline Manufacturing must choose between two shipping alternatives: two-day freight and five-day freight. Using five-day freight would cost $210 less than using two-day freight. The primary consideration is holding cost, which is $10 per unit a year. 2,450 items are to be shipped.
Which alternative would you recommend? (Do not round your intermediate calculations.)
•
Five-day freight
•
Two-day freight
Problem 15-2
Determine which shipping alternative would be most economical to ship 63 boxes of parts when each box has a price of $286 and holding costs are 26 percent of price, given this shipping information: overnight, $405, two-day, $265, six-day, $215. (Round your intermediate calculations to 2 decimal places.)
•
Overnight
•
Two-day
•
Six-day
Problem 15-3
A manager must make a decision on shipping. There are two shippers, A and B. Both offer a two-day rate: A for $504 and B for $526. In addition, A offers a three-day rate of $472 and a nine-day rate of $410, and B offers a four-day rate of $452 and a seven-day rate of $428. Annual holding costs are 30 percent of unit price. Three hundred and sixty boxes are to be shipped, and each box has a price of $150. Which shipping alternative would you recommend? (Round your intermediate calculations to 3 decimal places and final answers to 2 decimal places. Omit the “$” sign in your response.)
A
B
Option
Cost
Option
Cost
2 days
$
2 days
$
3 days
$
4 days
$
9 days
$
7 days
$
•
Ship two-day using A
•
Ship three-day using A
•
Ship two-day using B
•
Ship four-day using B
•
Ship seven-day using B
Problem 16-8
The following table shows orders to be processed at a machine shop as of 8:00 a.m. Monday. The jobs have different operations they must go through. Processing times are in days. Jobs are listed in order of arrival.
Job
Processing
Time (Days)
Due Date
(Days)
Remaining Number
of Operations
A
8
20
2
B
10
18
4
C
5
25
5
D
11
17
3
E
9
35
4
a. Determine the processing sequence at the first work center using each of these rules: (1) First come, first served, (2) Slack per operation. (Hint: In case of a tie choose the jobs in alphabetical order.)
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