The IIT Madras BS Industry 4.0 (Industry 4.0) End Term paper sat on 13 Apr 2025, in the January 2025 term, set 4: 32 questions for 51 marks in 180 minutes. Every question is below with its answer. Take it as a timed mock test to be marked, or read it through first.
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YES
NO
Correct answer
YES
Which of the following is not an example of digitization ?
Scanning a document to get the PDF document
Converting a physical 2D sheet to CAD drawing
Converting physical invoice to e-copy
Creating an automated report from the existing cost data
Correct answer
Creating an automated report from the existing cost data
You visit the car service centre to get your car washed. In the service centre, washing done using automated systems, e.g. the car is put on a moving belt, water is sprayed, drying is also done. Which of the following terms represents this scenario?
Digitization
Automation
Digital transformation
Correct answer
Automation
What is the name of the forecasting method represented by the following set of equations? The notations have their usual meanings.
What is the name of the forecasting method represented by the following set of equations? The notations have their usual meanings.
Exponential smoothing
Winter’s model for seasonality
Holt’s method for trend
None of these
Correct answer
Holt’s method for trend
Which of the following is not a form of internet?
Industrial
Commercial
Philanthropic
Consumer
Correct answer
Philanthropic
Which of the following functions does Logistics Management not cover?
Supply Management
Materials Management
Customer Management
Distribution Management
Correct answer
Customer Management
Which of the following is an advantage of a Process Layout?
Low material handling
Total production time per unit is small
Low training cost for the operators
It can accommodate high variety of products
Correct answer
It can accommodate high variety of products
Match Column A with Column B for landmark outcomes of the industrial era.
Match Column A with Column B for landmark outcomes of the industrial era.
1.0:CNC, 2.0:Mass production, 3.0: Digitization, 4.0:Steam Engine
1.0:Steam Engine, 2.0:mass production, 3.0: Digitization, 4.0:CNC
1.0:Mass production, 2.0:Steam Engine, 3.0: Digitization, 4.0:CNC
1.0:Steam Engine, 2.0:mass production, 3.0: CNC, 4.0: Digitization
Correct answer
1.0:Steam Engine, 2.0:mass production, 3.0: CNC, 4.0: Digitization
Which of the following is not an example of digitization?
Creating the e-copy of a book using Google-Lens
Generating an automated daily sales report across the retail outlets in a state.
Converting a physical 2D sheet to CAD drawing
Converting physical invoice to e-copy
Correct answer
Generating an automated daily sales report across the retail outlets in a state.
If the vehicle travels to node j from node i (binary)
Number of vehicles travelled between node i and node j (integer)
Weight on the arc (i,j) e.g. the distance (integer)
Correct answer
If the vehicle travels to node j from node i (binary)
Identify the examples for Outsourcing from the list below:
Micron Technology, a US based semiconductor giant, setting up a SupplyChain Analytics team, in India.
Mastercard has set up a Data Science team in Gurgaon to develop algorithmsfor the company.
IIT Madras' BS degree program has assigned TCS to develop and manage theexam portal and its evaluation.
Foxconn assembles iPhones for Apple
Correct answers
IIT Madras' BS degree program has assigned TCS to develop and manage theexam portal and its evaluation.
Foxconn assembles iPhones for Apple
What are the two primary tasks of time series forecasting?
Identifying pattern
Identify variables of interest
Discovering relationships amongst variables of interest
Correct answers
Identifying pattern
Discovering relationships amongst variables of interest
Select the correct statements from the list below:
Optimal solution in a facility location problem using Euclidean method willresult in a region
Optimal solution in a facility location problem using Euclidean method rarelymatches the center of gravity
Optimal solution in a facility location problem using Euclidean method willresult in a point
Optimal solution in a facility location problem using Euclidean methodmatches the centre of gravity in not of the cases
Correct answers
Optimal solution in a facility location problem using Euclidean method rarelymatches the center of gravity
Optimal solution in a facility location problem using Euclidean method willresult in a point
Which of the following supply chain costs is/are affected by the distribution network structure?
Inventory
Transportation
Facilities and handling
Information
Price
Correct answers
Inventory
Transportation
Facilities and handling
Information
Rana Bakery, a company, uses a layout consisting of 9 workstations. Each day, 200 sandwiches are produced using this layout. A typical workday consists of a single 10-hour shift. The sandwich-making process comprises 9 activities, as detailed in the table below.
Rana Bakery, a company, uses a layout consisting of 9 workstations. Each day, 200 sandwiches are produced using this layout. A typical workday consists of a single 10-hour shift. The sandwich-making process comprises 9 activities, as detailed in the table below. What is the current efficiency of the line where each activity is performed at a separate workstation? (Enter only the numerical value up to two decimal places without the '%' symbol. For example, if the answer is 99.756%, enter only '99.76').
A written answer, not marked automatically.
Find the Euclidean distance between the points A(3, 4) and B(7, 1) in a 2D plane.
A written answer, not marked automatically.
Rahul owns a tea distribution business in Assam. He sources premium tea leaves from local tea gardens and supplies them to various retailers. To manage his inventory efficiently, he wants to determine the optimal order quantity for his stock. • The annual demand for tea leaves is 24,000 kg. • The cost of placing an order (ordering cost) is ₹500 per order. • The carrying cost per kg of tea per year is ₹2.
Rahul wants to minimize his total inventory cost by ordering the optimal quantity each time. Answer the given three subquestions
Calculate the Economic Order Quantity (EOQ) for Rahul's business.
A written answer, not marked automatically.
Rahul owns a tea distribution business in Assam. He sources premium tea leaves from local tea gardens and supplies them to various retailers. To manage his inventory efficiently, he wants to determine the optimal order quantity for his stock. • The annual demand for tea leaves is 24,000 kg. • The cost of placing an order (ordering cost) is ₹500 per order. • The carrying cost per kg of tea per year is ₹2.
Rahul wants to minimize his total inventory cost by ordering the optimal quantity each time. Answer the given three subquestions
How many orders should Rahul place per year?
A written answer, not marked automatically.
Rahul owns a tea distribution business in Assam. He sources premium tea leaves from local tea gardens and supplies them to various retailers. To manage his inventory efficiently, he wants to determine the optimal order quantity for his stock. • The annual demand for tea leaves is 24,000 kg. • The cost of placing an order (ordering cost) is ₹500 per order. • The carrying cost per kg of tea per year is ₹2.
Rahul wants to minimize his total inventory cost by ordering the optimal quantity each time. Answer the given three subquestions
What is the total cost associated with holding inventory at EOQ?
A written answer, not marked automatically.
A store sells a seasonal product with demand following a normal distribution, having a mean of 500 units and a standard deviation of 75 units. Each unit is purchased for ₹200 and sold for ₹350. Any leftover stock is cleared at a discounted price of ₹100 per unit. Based on the above data, answer the given subquestions.
Determine the optimal order quantity. ( Z -value = 0.25)
A written answer, not marked automatically.
A store sells a seasonal product with demand following a normal distribution, having a mean of 500 units and a standard deviation of 75 units. Each unit is purchased for ₹200 and sold for ₹350. Any leftover stock is cleared at a discounted price of ₹100 per unit. Based on the above data, answer the given subquestions.
If the store orders 520 units, what is the probability of a stockout? (probability corresponding to the Z -value = 0.6064) (enter your answer without the percentage symbol and rounded off to two decimals. E.g. if your answer is 39.223%, enter your answer as 39.22)
A written answer, not marked automatically.
Suppose you need to accept reservations for a flight with a total of 100 seats available. There are two classes of passengers: economy and business. An economy seat generates ₹2,500 in revenue, while a business seat generates ₹7,500. Based on past experience, the demand for business travellers follows a uniform distribution between 10 and 40. Answer the given subquestions:
What is the Booking limit?
A written answer, not marked automatically.
Suppose you need to accept reservations for a flight with a total of 100 seats available. There are two classes of passengers: economy and business. An economy seat generates ₹2,500 in revenue, while a business seat generates ₹7,500. Based on past experience, the demand for business travellers follows a uniform distribution between 10 and 40. Answer the given subquestions:
What is the protection level?
A written answer, not marked automatically.
The owner of a newsstand wants to determine the number of newspapers of USA Now to be stocked at the start of each day. The owner pays 30 cents for a copy and sells it for 75 cents. The sale of the newspaper typically occurs between 7:00 and 8:00 am. Newspaper left at the end of the day are recycled for an income of 5 cents a copy. How many copies should the owner stock every morning, assuming that the demand for the day can be described as: Based on the above data, answer the given subquestions.
How many copies should the owner stock each morning, assuming that the daily demand follows a normal distribution with a mean of 300 copies and a standard deviation of 20 copies? [Standard_Norm_inv(critical fractile)=0.643]
A written answer, not marked automatically.
The owner of a newsstand wants to determine the number of newspapers of USA Now to be stocked at the start of each day. The owner pays 30 cents for a copy and sells it for 75 cents. The sale of the newspaper typically occurs between 7:00 and 8:00 am. Newspaper left at the end of the day are recycled for an income of 5 cents a copy. How many copies should the owner stock every morning, assuming that the demand for the day can be described as: Based on the above data, answer the given subquestions.
How many copies should the owner stock each morning, assuming that the daily demand follows a discrete probability distribution, f(D), defined as follows?
How many copies should the owner stock each morning, assuming that the daily demand follows a discrete probability distribution, f(D), defined as follows?
A written answer, not marked automatically.
The Egg Dropping Problem is a Dynamic Programming (DP) problem that helps determine the minimum number of attempts needed to find the highest floor from which an egg can be dropped without breaking.
Based on the above data, answer the given subquestions.
What is the state variable here?
Number of eggs on hand
Number of floors
Number of eggs that got broken
Correct answer
Number of eggs on hand
The Egg Dropping Problem is a Dynamic Programming (DP) problem that helps determine the minimum number of attempts needed to find the highest floor from which an egg can be dropped without breaking.
Based on the above data, answer the given subquestions.
How a stage is defines
Number of eggs on hand
Number of floors
Number of eggs that got broken
Correct answer
Number of floors
Rahul owns a tea distribution business in Assam. He sources premium tea leaves from local tea gardens and supplies them to various retailers. To manage his inventory efficiently, he wants to determine the optimal order quantity for his stock. • The annual demand for tea leaves is 24,000 kg. • The cost of placing an order (ordering cost) is ₹500 per order. • The carrying cost per kg of tea per year is ₹2.
Rahul wants to minimize his total inventory cost by ordering the optimal quantity each time. Answer the given three subquestions
A written answer, not marked automatically.
A store sells a seasonal product with demand following a normal distribution, having a mean of 500 units and a standard deviation of 75 units. Each unit is purchased for ₹200 and sold for ₹350. Any leftover stock is cleared at a discounted price of ₹100 per unit. Based on the above data, answer the given subquestions.
A written answer, not marked automatically.
Suppose you need to accept reservations for a flight with a total of 100 seats available. There are two classes of passengers: economy and business. An economy seat generates ₹2,500 in revenue, while a business seat generates ₹7,500. Based on past experience, the demand for business travellers follows a uniform distribution between 10 and 40. Answer the given subquestions:
A written answer, not marked automatically.
The owner of a newsstand wants to determine the number of newspapers of USA Now to be stocked at the start of each day. The owner pays 30 cents for a copy and sells it for 75 cents. The sale of the newspaper typically occurs between 7:00 and 8:00 am. Newspaper left at the end of the day are recycled for an income of 5 cents a copy. How many copies should the owner stock every morning, assuming that the demand for the day can be described as: Based on the above data, answer the given subquestions.
A written answer, not marked automatically.
The Egg Dropping Problem is a Dynamic Programming (DP) problem that helps determine the minimum number of attempts needed to find the highest floor from which an egg can be dropped without breaking.
Based on the above data, answer the given subquestions.
A written answer, not marked automatically.
