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QUESTION 21.      

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A milling operation has historically produced an average thickness of 0.005 inch with an average range of 0.00015 inch. Currently, the first three items from each batch of 20 are inspected.  What is the value of the LCLx?

Answer

 

[removed] 

[removed] 

[removed] 

[removed]

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Less than or equal to 0.00

100

Greater than 0.00100 but less than or equal to 0.00299

Greater than 0.00299 but less than or equal to 0.00479

Greater than 0.00479

5 points   

QUESTION 31.        

Historically, the average diameter of the holes drilled has been 0.34 cm and the average range has been 0.14 cm. Assuming samples of size 7 will be taken.  What is the value of the LCLR?

Answer

[removed] 

[removed] 

[removed] 

[removed] 

Less than or equal to 0.010

Greater than 0.010 but less than or equal to 0.020

Greater than 0.020 but less than or equal to 0.030

Greater than 0.030

5 points   QUESTION 41.        

Historically, the average diameter of the holes drilled has been 0.34 cm and the average range has been 0.14 cm. Assuming samples of size 7 will be taken.  What is the value of the UCLx?

Answer

[removed] 

[removed] 

242

[removed] 

[removed] 

[removed] 

Less than or equal to 0.0898

Greater than 0.0899 but

less than or equal to 0.1

Greater than 0.0.1243 but less than or equal to 0.2478

Greater than 0.2479 but less than or equal to 0.4264

Greater than 0.4264

5 points   QUESTION 81.        

A metal-cutting operation consistently averages 19.8 with a standard deviation of 0.4. The design engineers have established an upper specification limit of 20 and a lower specification limit of 17. Which statement concerning this process is TRUE?

Answer

[removed] 

[removed] 

[removed] 

[removed] 

The process capability ratio is 1.46

The process capability index is 1.33

The process is in control

None of these is true

5 points   QUESTION 91.        

ABC Service center is capable of handling 1,000 requests per day when it runs for one 8 hour shift. Due to recent regulations and employee training this center has handled an average of 632 requests per day for the past 4 months. What is the utilization of the system?

Answer

[removed] 6

32 requests/day

[removed] 

[removed] 

[removed] 

[removed] 

1,000 requests/day

158.2%

63.2%

None of the above

5 points   QUESTION 101.        

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

 

 

X

3015

812

Product

Product Y

Demand forecast (units/yr)

2,000

3,000

Batch size (units/batch)

Processing time (hr/unit)

3.6

4.2

Setup time (hr/batch)

 

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 111.        

A company makes four products that have the following characteristics: 

 

Product

A501015B753015C1005030D

7540

Selling price

Materials

Labor

150

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

 

ABCD

W72415X81156Y35148Z11079

Processing time (minutes/unit)

Work Center

 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 121.        A company makes four products that have the following characteristics:   ProductSelling priceMaterialsLaborA501015B753015C1005030D1507540The processing requirements for each product on each of the four machines are shown in the table.   Processing time (minutes/unit)Work CenterABCDW72415X81156Y35148Z11079 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

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[removed] 

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[removed] 

A, B, C, D

A, B, D, C

D, C, B, A

C, D, A, B

B, A, D, C

5 points   QUESTION 131.        

Customers arrive every three minutes governed by a Poisson distribution. A single server is capable of handling 30 customers per hour and this service time is exponentially distributed. What is the likelihood that the server is not busy at any given time?

Answer

[removed] less than or equal to 0.1[removed] 

[removed] 

[removed] 

[removed] 

greater than 0.1 but less than or equal to 0.15

greater than 0.15 but less than or equal to 0.25

greater than 0.25 but less than or equal to 0.32

Greater than 0.32

5 points   QUESTION 141.        

Customers arrive every three minutes governed by a Poisson distribution. A single server is capable of handling 30 customers per hour and this service time is exponentially distributed. What is the likelihood that more than 4 customers are in the system?

Answer

[removed] 

[removed] greater than 0.1 but less than or equal to 0.15[removed] greater than 0.15 but less than or equal to 0.25[removed] greater than 0.25 but less than or equal to 0.32[removed] Greater than 0.32

less than or equal to .1

5 points   QUESTION 151.        

A trucking company has 5 trucks that each requires service at an average rate of once every 40 hours, according to an exponential distribution. The firm has a mechanic who needs 5 hours to complete the average job with exponential service times. What is the probability that there will be no trucks in the system?

Answer

[removed] 

[removed] 

[removed] 

[removed] 

less than or equal to 0.50

greater than 0.50 but less than or equal to 0.60

greater than 0.60 but less than or equal to 0.70

greater than 0.70

5 points   QUESTION 161.        

A trucking company has 5 trucks that each requires service at an average rate of once every 40 hours, according to an exponential distribution. The firm has a mechanic who needs 5 hours to complete the average job with exponential service times. What is the average utilization of the mechanic?

Answer

[removed] 

[removed] 

[removed] 

[removed] 

less than or equal to 50 percent

greater than 50 percent but less than or equal to 60 percen

greater than 60 percent but less than or equal to 70 percent

greater than 70 percent

5 points   QUESTION 171.        

A trucking company has 5 trucks that each requires service at an average rate of once every 40 hours, according to an exponential distribution. The firm has a mechanic who needs 5 hours to complete the average job with exponential service times. What is the average number of trucks waiting for service?

Answer

[removed] 

[removed] 

[removed] 

[removed] 

fewer than or equal to 0.15

greater than 0.15 but fewer than or equal to 0.20

greater than 0.20 but fewer than or equal to 0.30

greater than 0.30

5 points   QUESTION 181.        

Solve this linear programming problem.  What is the optimal value of the objective function?

 

Maximize $3x + $5y

subject to:

8x + 14y <= 94

9x + 12y <= 90

Answer

[removed] 

[removed] 

[removed] 

[removed] 

0 but Less than or equal to 60

[removed] 

Less than or equal to 30

Greater than 30 but Less than or equal to 40

Greater than 40 but Less than or equal to 50

Greater than 5

Greater than 60

5 points   QUESTION 191.        

1.       Solve this linear programming problem.  What is the shadow price (dual value) for the first constraint?

 Maximize $3x + $5y

subject to:8x + 14y <= 949x + 12y <= 90Answer

[removed] 

[removed] 

[removed] 

[removed] 

[removed] Greater than 5

Less than or equal to 0.5

Greater than 0.5 but Less than or equal to 1

Greater than 1 but Less than or equal to 2 

Greater than 2 but Less than or equal to 5

QUESTION 201.        

ABC Logistics Inc. has four warehouses (A, B, C, and D) that require monthly shipments of 300, 350, 500, and 550 units per month, respectively. Its three plants (1, 2, and 3) have monthly capacities of 600, 450, and 650, respectively.

Plant

capacities, warehouse needs and shipping costs (in $) are shown in the following table. For example, the shipping cost from Plant 1 to

Warehouse

A is $15 per unit.

 

 WarehousePlantABCD11591216218151920314181911

What is the optimal shipping cost?

Answer

[removed] 

[removed] 

[removed] 

[removed] 

[removed] 

Less than or equal to $10,000 

Greater than $10,000 but Less than or equal to $15,000

Greater than $15,000 but Less than or equal to $20,000 

Greater than $20,000 but Less than or equal to $25,000

Greater than $25,000

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