10 11 12

QUESTION 10

1.        

1.       ABC Manufacturing Company is producing two types of products: X and Y. The annual demand forecasts, batch size, and time standards follow:

 

 

Product X

Product Y

Demand forecast (units/yr)

2,000

3,000

Batch size (units/batch)

30

15

Processing time (hr/unit)

3.6

4.2

Setup time (hr/batch)

8

12

 

Both products are produced on the same machine, called JTM-Flex.  The company works 250 days per year and operates two shifts, each covering 8 hours. If a 15 percent capacity cushion is maintained, how many JTM-Flex machines are required?

Answer

[removed]

 

5

[removed]

 

6

[removed]

 

7

[removed]

 

8

[removed]

 

9

5 points   

QUESTION 11

1.        

A company makes four products that have the following characteristics: 

 

Product

Selling price

Materials

Labor

A

50

10

15

B

75

30

15

C

100

50

30

D

150

75

40

The processing requirements for each product on each of the four machines are shown in the table. 

 

Processing time (minutes/unit)

Work Center

A

B

C

D

W

7

2

4

15

X

8

11

5

6

Y

3

5

14

8

Z

11

0

7

9

 Work centers W, X, Y, and Z are available for 40 hours per week and have no setup time when switching between products. Market demand for each product is 80 units per week. What is the bottleneck workstation?

Answer

[removed]

 

W

[removed]

 

X

[removed]

 

Y

[removed]

 

Z

[removed]

 

There is no bottleneck in this schedule

5 points   

QUESTION 12

1.        

A company makes four products that have the following characteristics: 

 

Product

Selling price

Materials

Labor

A

50

10

15

B

75

30

15

C

100

50

30

D

150

75

40

The processing requirements for each product on each of the four machines are shown in the table. 

 

Processing time (minutes/unit)

Work Center

A

B

C

D

W

7

2

4

15

X

8

11

5

6

Y

3

5

14

8

Z

11

0

7

9

 Work centers W, X, Y, and Z are available for 40 hours per week and have no setup time when switching between products. Market demand for each product is 80 units per week.

Using bottleneck method (maximizing the contribution margin per minute at the bottleneck for each product) in what sequence should products be scheduled for production?

 

Answer

[removed]

 

A, B, C, D

[removed]

 

A, B, D, C

[removed]

 

D, C, B, A

[removed]

 

C, D, A, B

[removed]

 

B, A, D, C

 
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