Mid-Term Assessment
Module Title
Operations & Supply Chain Management
Group Code
ESL 72 - V1 - TUESDAY - ONLINE
Exam Type
Take Home Exam
Exam Start Date
Tuesday 18th February, 2025 at 12:00 PM CT.
Time Allowed
3 Days
Submission Due Date Friday 21st February, 2025 at 11:59 PM CT.
Number of Pages
5 Pages Including Cover Page
Number of Questions
8 Main Questions
Total Grades
100 Marks → to be converted into 20 Marks
NOTE
N/A
Dr. Muhammad Nafea
mohamed.nafea@eslsca.edu.eg
Submissions should be made via Moodle- No Email Submissions
I would like to emphasize the importance of authenticity and excellence in students' responses in answering
Exam Questisons. In case of having any similarity between the answers of different researchers’ papers,
the grades of researchers that submit similar answers will be cancelled due to violation of academic integrity
policy. Therefore, please ensure creativity and distinction in the answers and avoid unauthorized copying.
I trust in your ability to deliver the best performance and excellence in answering questions. Additionally,
please note that the use of artificial intelligence (AI) tools is strictly prohibited in preparing the answers.
Thank you for your understanding and cooperation .
Cairo
February, 2025
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Kandil – Egypt
Kandil Egypt is a series of factories and exhibitions for the
production and distribution of all decorative lighting applications
began in 1976 and continued to grow and evolve, even became the
first company to produce Chandeliers and other types of decorative
lighting in Egypt and the Middle East region and North Africa.
The company is targeting decorative lighting markets in Egypt, also
exports its production to many countries in all over the world and its products vary between
specialized for residential premises or public places such as mosques, hotels, government
buildings. Kandil Egypt products enjoy the confidence of customers in all target markets
inside and outside Egypt.
Q1: Productivity Measurements:
(10 Marks)
The following table shows data on the average number of Oval
Chandelier lamp produced by two different shifts at Kandil’s factory each
day. The hourly wage rate is EGP 70, the overhead rate is 1.7 times
labor cost, and material cost is EGP 2,000 per unit. Price per unit is EGP
11,000.
Shift
Day
Night
Employees
100
95
Produced Units
520
400
1. Compute the multifactor productivity for each shift. Use an eight-hour day
for multifactor productivity.
(4 Marks)
2. Suppose a new, more standardized procedure is to be introduced that will
enable each employee to process 20 additional units per shift. Compute the
expected labor & multifactor productivity rates for each shift.
(4 Marks)
3. What are those possible alternatives through which Kandil’s operations
management may improve their productivity rates?
(2 Marks)
Q2: Forecasting Analysis:
If you got the following values of the sales of the
number of Oval Chandelier lamp sold by all Kandil’s
Stores during the previous seven years:
You were asked to conduct a forecasting
analysis to get the potential sales value for the
year 2025 using the following instructions:
(a)
Use Naïve approach.
(1 Marks)
(b)
Depending on a 5-year moving average
approach to get an average-forecasted
Value (Consider the effect of COVID-19
Pandemic while cleaning data). (3 Marks)
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(20 Marks)
Year
Oval Chandelier
lamp
2018
2019
2020
2021
2022
2023
2024
2025
4,000
5,050
1,000
5,700
7,000
7,700
9,000
?????
(c)
(d)
(e)
Use the following weights to get a weighted forecasted value. (0.5, 0.3, 0.15, 0.05),
Interpret your distributions of weight with different years.
(2 Marks)
Use an exponential smoothing approach (use α = 0.2 in your analysis). (4 Marks)
Compute MAD, MSE, and MAPE to compare which one seems the most appropriate
and accurate approach of the previous four approaches & why?
(5 Marks)
Given the following table that reflects the monthly demand for Oval Chandelier Lamp,
create seasonal index to forecast the monthly sales using the results of the Exponential
Smoothing Forecasts:
(5 Marks)
Month
January
February
March
April
May
June
July
August
September
October
November
December
Total
2022
300
450
450
500
500
900
950
950
500
450
500
550
7,000
Demand of Oval Chandelier lamp
2023
400
450
500
600
650
1,000
1,050
1,100
700
550
600
600
7,700
Q3: Cont. Forecasting Analysis:
The Sales Director at
2024
550
500
600
800
600
1,200
1,100
1,300
600
600
650
500
9,000
(10 Marks)
No. of Facebook
Oval Chandelier
Kandil thinks that the sales
Posts per Year
Lamp
of one of Oval Chandelier
4,000
200
5,050
300
Lamp seem to go in
1,000
450
parallel with many other
5,700
350
variables; specifically, he
7,000
370
defined one main variable which is the annual
7,700
500
9,000
480
Number of Facebook Posts. He would use
?????
regression analysis to formulate a model to be
used in forecasting sales and coefficient of
correlation. Kindly, build your forecasting Model and interpret its components.
Q4: Layout Decision Analysis:
(20 Marks)
In another context, Kandil’s management is planning to have a certain location in the industrial
zone of the 6th of October to establish their new factory. They Arrange Eight departments in the
factory to minimize the material handling costs. Each department is 10 x 10 meters, and the
building is 40 meters long and 20 meters wide. The cost of moving one load between adjacent
departments is estimated to be EGP 20. Moving one load between non-adjacent departments
costs EGP 40.
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Department
Design
(1)
Design
(1)
Material
Selection
(2)
Fabrication
(3)
Electrical
Wiring
(4)
Assembly
(5)
Quality Control
(6)
Packaging
(7)
Shipping
(8)
Material
Selection
(2)
Fabrication
(3)
Electrical
Wiring
(4)
Assembly
(5)
Quality
Control
(6)
Packaging
(7)
Shipping
(8)
100
250
0
0
500
0
0
100
100
250
0
400
0
500
0
300
300
200
200
300
400
100
100
0
100
150
0
0
Required:
1.
2.
3.
4.
Determine the space requirements, and develop an initial schematic diagram
Determine the cost of this layout
Try to improve the layout (Trial & Error or Sophisticated Software)
Develop a plan to fit the shape of the building
Q5: Line Balancing Decision:
At Kandil’s factory, the Production line
for their Oval Lighting Lamp in which
activities are shown in the following
table has an eight-hour workday. The
required number of units per day are
400 units.
(5 Marks)
(5 Marks)
(5 Marks)
(5 Marks)
(10 Marks)
Task
A
B
C
D
E
F
G
H
Performance Time
(Minutes)
0.2
0.2
0.8
0.6
0.3
1.0
0.4
0.3
3.8
Task Must
Follow this Task
-A
-C
B
D, E
F
G
Required:
1. Draw the precedence graph
and
find
the
minimum
possible number of oneperson workstations.
2. Then arrange the work activities into workstations so as to balance the line.
3. What is the efficiency of your line balance?
Q6: Capacity Planning – Capacity Levels
(10 Marks)
If you know that the production line at Kandil is designed to operate 10 hours a day. In addition,
throughout the whole year, there will be no existence for days off per week, but the factory of
Kandil will be closed for the last four days of each month for the year 2024 whose numbers of
days will be 360 days. Kandil has a production line that was designed to produce 6 lighting lamps
per Hour. However, the workers at this Factory do not work for the full 10 hours per day and they
take two-half an hour-breaks & the first hour is spent for setting up the required tools &
equipment. In addition, you, as an operations specialist, advised them to lose an hour to
4 | P a g e
spare some parts of the machine generating and polishing the lamp crystals. For your concern,
the factory usually produces 20,000 lamps per year. Now you must compute the planned
capacity levels as follows:
(a)
(b)
(c)
(d)
(e)
Designed Capacity level.
(2 Marks)
Effective capacity level.
(2 Marks)
Efficiency ratio.
(2 Marks)
Utilization ratio.
(2 Marks)
Compare your findings concerning the effective capacity to your findings in the
exponential smoothing question -Q2, part (d)- and how would you close this gap. (2 Marks)
Q7: Capacity Planning – Multiproduct Break Even Analysis (10 Marks)
If Kandil’s Management has the following Fixed costs of EGP 200,000 per month for
Zayed’s New Branch.
Item
Wall Lamp Model 1
Wall Lamp Model 2
Wall Lamp Model 3
Price
3,000
900
1,200
Cost
1,800
300
600
Annual Forecasted Sales (Units)
5,500
8,500
7,000
Required:
(2 Marks)
Calculate the Break Even Point for every Single Item per day.
Q8: Capacity Planning – Cycle Time
(10 Marks)
Also, Kandil’s operations management has the process displayed below.
✓ Analyze the following system indicating Which operation is the bottleneck? and find
the process capacity per hour.
✓ If the capacity of one operation could be increased in order to increase the output of
the system, which operation should it be, and what amount of increase?
Best Wishes 😊
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