assignment 1 instructions
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School
University of Windsor *
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Course
3310
Subject
Industrial Engineering
Date
Dec 6, 2023
Type
docx
Pages
2
Uploaded by PresidentTroutPerson816
Assignment 1
Note:
All assignments must be typed in Microsoft Word
and submitted online (
without the
questions
) through the course website on Bright Space.
Assignments submitted in formats other than Microsoft Word will not be graded.
Charts and diagrams can be drawn by hand and then their pictures be copied into the
Word document.
The answers to all questions should be submitted in a single document.
Late assignments will not be accepted.
Each assignment should be your own work. All submitted assignments will be
compared against the existing works or sources by
Turnitin software
to examine the
originality of your assignment and identify areas of overlap. SafeAssign originality
reports provide detailed information about the matches found between a submitted
assignment and existing works.
Identical assignments will be given a grade of zero.
1)
Marjatta Viitasalo operates a bakery in Thunder Bay, Ontario. Because of its excellent product
and excellent location, demand has increased by 42.6% in the last year. On far too many
occasions, customers have not been able to purchase the bread of their choice. Because of the
size of the store, no new ovens can be added. At a staff meeting, one employee suggested ways
to load the ovens differently so that more loaves of bread can be baked at one time. This new
process will require that the ovens be loaded by hand, requiring additional manpower. This is the
only thing to be changed. If the bakery makes 1500 loaves per month with a labour productivity
of 2 loaves per labour-hour, how many workers will Viitasalo need to add? (Hint: Each employee
works 160 hours per month.)
2)
The City of Lethbridge has decided to build a botanical garden and picnic area in the heart of the
city for the recreation of its citizens. The precedence table for all the activities required to
construct this area successfully is given below. Draw the Gantt chart for the whole construction
activity.
Cod
Activity
Description
Time
(in
hours)
Immediate
Predecessor(s)
A
Planning
Find
location;
determine
resource
requirements
20
None
B
Purchasing
Requisition of lumber and sand
80
Planning
C
Excavation
Dig and grade
80
Planning
D
Sawing
Saw lumber into appropriate sizes
30
Purchasing
E
Placement
Position lumber in correct locations
20
Sawing,
excavation
F
Assembly
Nail lumber together
10
Placement
G
Infill
Put sand in and under the equipment
20
Assembly
H
Outfill
Put dirt around the equipment
10
Assembly
I
Decoration
Put grass all over the garden, landscape, paint 30
Infill, outfill
Assignment 1
3)
McGee Carpet and Trim installs carpet in commercial offices. Andrea McGee has been very
concerned with the amount of time it took to complete several recent jobs. Some of her workers
are very unreliable. A list of activities and their optimistic completion time, the most likely
completion time, and the pessimistic completion time (all in days) for a new contract are given in
the following table:
a) Determine the expected completion time and variance for each activity.
b) Determine the total project completion time and the critical path for the project.
c) Determine ES, EF, LS, LF, and slack for each activity.
d) What is the probability that McGee Carpet and Trim will finish the project in 50 days or less?
4)
Bolling Electronics manufactures DVD players for commercial use. W. Blaker Bolling, president of
Bolling Electronics, is contemplating producing DVD players for home use. The activities
necessary to build an experimental model and related data are given in the following table:
Activit
y
Normal
Time
(weeks)
Crash
Time
(weeks)
Normal
Cost ($)
Crash
Immediate
Cost ($) Predecessor(s)
A
3
2
1000
1600
—
B
2
1
2000
2700
—
C
11
1
300
500
—
D
7
3
1300
1600
A
E
6
3
850
1000
B
F
2
1
4000
5000
C
G
4
2
1500
2000
D, E
a) What is the project completion date?
b) Crash this project to 10 weeks at the least cost.
c) Crash this project to seven weeks at the least cost.
Activity
a
Time (days)
m
b
Immediate
Predecessor(s)
A
3
6
8
—
B
2
4
4
—
C
1
2
3
—
D
6
7
8
C
E
2
4
6
B, D
F
6
10
14
A, E
G
1
2
4
A, E
H
3
6
9
F
I
10
11
12
G
J
14
16
20
C
K
2
8
10
H, I
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