Reference no: EM131038390
LAYOUT STRATEGY
1. An assembly line has been designed to make battery-powered beverage mixers. Task details are shown in the table below:
|
Station
|
Task Assigned
|
Task Time (minutes)
|
|
1
|
1
|
3.0
|
|
2
|
3; 4
|
1.5; 2.0
|
|
3
|
2; 5; 6
|
1.5; 1.5; 1.0
|
|
4
|
7
|
3.0
|
|
5
|
8
|
2.5
|
|
6
|
9; 10; 11
|
2.0; 1.0; 1.0
|
a. What is the assigned cycle time (in minutes)?
b. What is the maximum output rate of this line in mixers per hour?
c. What is the total idle time per cycle?
d. What is the assembly line's efficiency?
2. Departments A, B, C, and D need to be assigned to four rooms 1, 2, 3, and 4. These rooms are arranged in a row, in that order, with 20 meters between each. The departmental work flows are contained in the table below.
|
Flow Matrix
|
|
Dept. A
|
Dept. B
|
Dept. C
|
Dept. D
|
|
Dept. A
|
0
|
30
|
5
|
20
|
|
Dept. B
|
5
|
0
|
40
|
20
|
|
Dept. C
|
0
|
10
|
0
|
40
|
|
Dept. D
|
10
|
5
|
0
|
0
|
a. What is the material handling total of assigning A-1, B-2, C-3, D-4?
b. What is the material handling total of assigning A-1, B-3, C-4, D-2?
3. There are three work centers (A, B, and C) behind the financial aid counter at a nearby university. They can each fit into any of three office spaces (1, 2, and 3) off the corridor behind the desk. There is no student contact in these areas, only workers. The distance 1-2 is 20 feet, 2-3 is 30 feet, and 1-3 is 50 feet. The matrix of work (trips per day) at the three centers is in the following table. Remember that each trip must be a round-trip (from 1 to 2 and back, for example).
|
A
|
B
|
C
|
|
A
|
--
|
20
|
0
|
|
B
|
45
|
--
|
25
|
|
C
|
60
|
0
|
--
|
a. How many possible assignments are there? List them.
b. Calculate the total distance traveled in each of these assignments.
c. Which assignment minimizes distance traveled?
4. A firm is planning to set up an assembly line to assemble 40 units per hour, and 57 minutes per hour are productive. The time to perform each task and the tasks which precede each task are:
|
Task
|
Preceding Task
|
Time to perform (min.)
|
|
A
|
--
|
.69
|
|
B
|
A
|
.55
|
|
C
|
B
|
.92
|
|
D
|
B
|
.59
|
|
E
|
B
|
.70
|
|
F
|
B
|
1.10
|
|
G
|
C, D, E
|
.75
|
|
H
|
G, F
|
.43
|
|
I
|
H
|
.29
|
a. Draw a network diagram of precedence relationships.
b. Compute the cycle time per unit in minutes.
c. Compute the minimum number of workstations required to produce 40 units per hour.
d. Balance this line using longest processing time.
e. What is the efficiency of the line obtained in part d?
|
What risks and safeguards are associated
: Are you more at risk using a wireless connection via laptop or a connection via a smart phone?
|
|
Different password combinations
: Medusa will try different password combinations until it successfully logs in, and then it will give the success message.You may want to watch the Medusa Password Cracking video under supplemental resources to help understand what isrequired.
|
|
Why you believe the action is required for the citations
: Why you believe the action is required for the citations and penalties, how you believe the actions will assist in responding to the citations and penalties.
|
|
Explain the difference between a one- and a two-tail test
: When our test statistic does NOT fall into the critical region, why do we say that we "Fail to reject the Ho" rather than just saying we accept the Ho? Explain the difference between a one- and a two-tail test. When is each used
|
|
Battery-powered beverage mixers
: An assembly line has been designed to make battery-powered beverage mixers. Task details are shown in the table below:
|
|
Display the contents of the array in the colleges listbox
: Using the IO.File.ReadAllLines method, read the contents of the colleges.txt file into an array
|
|
How the us food system influences mental health of children
: Write an initial post that explains how the "US food system" influences the mental and physical health of children, making sure to discuss specific factors presented in the film the location of those factors in the bioecological model.
|
|
Determining the standard time
: If in a time study, the observed time is 0.75 min, rating factor = 110% and allowances are 20% of normal time, then what is the standard time?
|
|
Write the corresponding loglinear model
: Write the corresponding loglinear model. b. Which, if any, pairs of variables are conditionally independent? If Y is a binary response, what is the corresponding logistic model?
|