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September 2025 term · Industry 4.0 · BSMS4001

Industry 4.0 End Term: 21 December 2025 (September 2025 term)

The IIT Madras BS Industry 4.0 (Industry 4.0) End Term paper sat on 21 Dec 2025, in the September 2025 term: 31 questions for 48 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.

Questions
31
Marks
48
Duration
180 min
Written
15
MCQ
11
MSQ
5

Updated

Official paper: Industry 4.0 18 Dec 25 · No negative marking.

Question 1

+1.5 marksWritten answer

Sunrise Foods Pvt. Ltd. is a packaged snacks manufacturer located in Pune. The company uses a special type of corn starch as its key raw material for making chips. The production runs throughout the year, and maintaining a steady supply of raw materials is critical. After reviewing the last year’s consumption pattern, the Operations Manager found the following data: • The company uses 24,000 kg of corn starch annually. • The ordering cost (includes transportation, paperwork, inspection) is ₹250 per order. • The annual holding cost (storage, insurance, spoilage risk) is ₹4 per kg per year. • Corn starch is highly stable and does not deteriorate quickly.[Assume 52 weeks in an year] Based on the above data, answer the given subquestions.

What is the Economic Order Quantity (EOQ) in KG/order

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A written answer, not marked automatically.

Question 2

+1.5 marksWritten answer

Sunrise Foods Pvt. Ltd. is a packaged snacks manufacturer located in Pune. The company uses a special type of corn starch as its key raw material for making chips. The production runs throughout the year, and maintaining a steady supply of raw materials is critical. After reviewing the last year’s consumption pattern, the Operations Manager found the following data: • The company uses 24,000 kg of corn starch annually. • The ordering cost (includes transportation, paperwork, inspection) is ₹250 per order. • The annual holding cost (storage, insurance, spoilage risk) is ₹4 per kg per year. • Corn starch is highly stable and does not deteriorate quickly.[Assume 52 weeks in an year] Based on the above data, answer the given subquestions.

What is the total number of orders per year ?

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A written answer, not marked automatically.

Question 3

+1.5 marksWritten answer

Bluescope company estimates its ordering cost at Rs 400 and carrying cost to be Rs.2/year/unit. The estimated annual requirement is 10,000 units at a unit price of Rs. 10. Calculate the given subquestions:

Calculate the annual inventory carrying cost.

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A written answer, not marked automatically.

Question 4

+1.5 marksWritten answer

Bluescope company estimates its ordering cost at Rs 400 and carrying cost to be Rs.2/year/unit. The estimated annual requirement is 10,000 units at a unit price of Rs. 10. Calculate the given subquestions:

While rechecked, Bluescope company finds that the order cost should have been 20%more than the currently estimated value. What should be the percentage increase in the EOQ inthis case? Enter your answer without the ‘%’ symbol.

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Question 5

+1.5 marksWritten answer

Suppose you need to accept reservation for a flight. There are total 100 seats in the aircraft. You have two classes of passengers - economy and business. One economy seat gets you 2,500 Rs of revenue while a business seat gets 7,500 Rs. From your experience, you know the demand for business travelers follows a uniform distribution in [10,20]. Then answer the given subquestions:

What is the Booking limit?

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A written answer, not marked automatically.

Question 6

+1.5 marksWritten answer

Suppose you need to accept reservation for a flight. There are total 100 seats in the aircraft. You have two classes of passengers - economy and business. One economy seat gets you 2,500 Rs of revenue while a business seat gets 7,500 Rs. From your experience, you know the demand for business travelers follows a uniform distribution in [10,20]. Then answer the given subquestions:

What is the protection level?

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Question 7

+2 marksOne correct option
Figure from the original question paper
  1. A

    A1–B1, A2–B2, A3–B3, A4–B4

  2. B

    A1–B3, A2–B1, A3–B4, A4–B2

  3. C

    A1–B1, A2–B3, A3–B2, A4–B4

  4. D

    A1–B3, A2–B4, A3–B2, A4–B1

Show answer

Correct answer

  • B

    A1–B3, A2–B1, A3–B4, A4–B2

Question 8

+2 marksOne correct option
Figure from the original question paper
  1. A

    A1: B3, A2: B2, A3:B4

  2. B

    A1: B3, A2: B2, A3:B1

  3. C

    A1: B2, A2: B3, A3:B1

Show answer

Correct answer

  • B

    A1: B3, A2: B2, A3:B1

Question 9

+1.5 marksWritten answer

A factory works for two 8-hour shifts each day and produces a total of 24,000 electric bulbs using a set of workstations. There are 8 activities required to manufacture the bulb, such that the sum of all activity times is equal to 12 seconds. How many workstations are required to main the specified level of production (assuming that activities can be combined into those workstations in any order) (enter your answer in numeric value)?

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A written answer, not marked automatically.

Question 10

+1 markWritten answer

Calculate the Euclidean distance between two machines located at the coordinates A(5,10) and B(2,6) in a shop floor.

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A written answer, not marked automatically.

Question 11

+1.5 marksOne or more correct options

There are four demand points at A(1,2), B(2,3), C(3,5), D(4,1). The respective demand at these points are 7, 1, 3, 5. Select the optimal location based on cross-median approach

Select all that apply.

  1. A

    (2,2)

  2. B

    (3,2)

  3. C

    (2.5,2)

  4. D

    (2,3)

Show answer

Correct answers

  • A

    (2,2)

  • B

    (3,2)

  • C

    (2.5,2)

Question 12

+1 markOne or more correct options

Which of the following example(s)s can be referred as seasonal pattern?

Select all that apply.

  1. A

    Economic recission

  2. B

    Increases Ceiling Fan sales during winters

  3. C

    Increased tourist footfall towards the end of the year

Show answer

Correct answers

  • B

    Increases Ceiling Fan sales during winters

  • C

    Increased tourist footfall towards the end of the year

Question 13

+2 marksOne correct option

Which of the following functions, Logistics Management does not cover?

  1. A

    Supply Management

  2. B

    Materials Management

  3. C

    Customer Management

  4. D

    Distribution Management

Show answer

Correct answer

  • C

    Customer Management

Question 15

+2 marksOne correct option

Which of the following model corresponds to Exponential Smoothing forecasting model?

  1. A

    —

  2. B

    —

Show answer

Correct answer

  • A

    —

Question 16

+2 marksOne or more correct options

Which of the following supply chain costs is/are affected by distribution network structure?

Select all that apply.

  1. A

    Inventory

  2. B

    Transportation

  3. C

    Facilities and handling

  4. D

    Information

  5. E

    Price

Show answer

Correct answers

  • A

    Inventory

  • B

    Transportation

  • C

    Facilities and handling

  • D

    Information

Question 17

+2 marksOne correct option

Which of the following is not an example of digitization?

  1. A

    Scanning a document to get the PDF document

  2. B

    Converting a physical 2D sheet to CAD drawing

  3. C

    Converting physical invoice to e-copy

  4. D

    Creating an automated report from the existing cost data

Show answer

Correct answer

  • D

    Creating an automated report from the existing cost data

Question 18

+1.5 marksOne correct option

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?

  1. A

    Number of eggs on hand

  2. B

    Number of floors

  3. C

    Number of eggs that got broken

Show answer

Correct answer

  • A

    Number of eggs on hand

Question 19

+1.5 marksOne correct option

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?

  1. A

    Number of eggs on hand

  2. B

    Number of floors

  3. C

    Number of eggs that got broken

Show answer

Correct answer

  • B

    Number of floors

Question 20

+2 marksWritten answer

Ramu puts up a stall for Diwali Light (Diya) every year. He builds a Diya at a cost of Rs. 3 and earns Rs.5 by selling each Diya. Any Diya not sold by Diwali will be discounted to Rs. 1. From his experience, Ramu knows that the demand is Uniformly Distributed within [800, 1000] units. Then answer the given sub-questions:

What is the Critical Ratio?

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A written answer, not marked automatically.

Question 21

+2 marksWritten answer

Ramu puts up a stall for Diwali Light (Diya) every year. He builds a Diya at a cost of Rs. 3 and earns Rs.5 by selling each Diya. Any Diya not sold by Diwali will be discounted to Rs. 1. From his experience, Ramu knows that the demand is Uniformly Distributed within [800, 1000] units. Then answer the given sub-questions:

What is the optimal order quantity that minimizes Ramu’s total cost?

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A written answer, not marked automatically.

Question 22

+1 markOne correct option

Identify the Industry 4.0 version of transportation.

  1. A

    IC engine

  2. B

    Electric car

  3. C

    Hyperloop

Show answer

Correct answer

  • C

    Hyperloop

Question 23

+2 marksOne correct option

Match Column A with Column B (country of origin)

Match Column A with Column B (country of origin)
  1. A

    A1:B1, A2:B2, A3:B3, A4:B4

  2. B

    A1:B2, A2:B1, A3:B3, A4:B4

  3. C

    A1:B3, A2:B1, A3:B4, A4:B2

  4. D

    A1:B3, A2:B1, A3: B2, A4:B4

Show answer

Correct answer

  • A

    A1:B1, A2:B2, A3:B3, A4:B4

Question 24

+1 markOne or more correct options

Select the correct statements from below:

Select all that apply.

  1. A

    Optimal solution in a facility location problem using Euclidean method will result in a region

  2. B

    Optimal solution in a facility location problem using Euclidean method rarely matches the center of gravity

  3. C

    Optimal solution in a facility location problem using Euclidean method will result in a point

  4. D

    Optimal solution in a facility location problem using Euclidean method matches the centre of gravity in most of the cases

Show answer

Correct answers

  • B

    Optimal solution in a facility location problem using Euclidean method rarely matches the center of gravity

  • C

    Optimal solution in a facility location problem using Euclidean method will result in a point

Question 25

+2 marksOne or more correct options

Select the demerits of outsourcing from the following list.

Select all that apply.

  1. A

    Reduced customer/supplier contact.

  2. B

    Loss of supply chain visibility.

  3. C

    Leakage of sensitive data and information.

  4. D

    Loss of internal capability and growth in third-party power.

Show answer

Correct answers

  • A

    Reduced customer/supplier contact.

  • B

    Loss of supply chain visibility.

  • C

    Leakage of sensitive data and information.

  • D

    Loss of internal capability and growth in third-party power.

Question 26

+2 marksOne correct option
Figure from the original question paper
  1. A

    Exponential smoothing

  2. B

    Winter’s model for seasonality

  3. C

    Holte’s method for trend

  4. D

    None of these

Show answer

Correct answer

  • C

    Holte’s method for trend

Question 27

+2 marksOne correct option

Pranjal is shopping in a departmental store. He has a list of items which he prepared at home itself. He picked a few packets of tea as part of his list. He could see coffee packets and milk-powder packets in the neighbouring shelves. He picked a few milk-powder packets, however these are not part of his list. He was searching for Good-day biscuits. He could identify only one packet in the shelf remaining. However, there were lot of Sun-fist biscuits lying in the next shelf. So he picked ten Sun-fist packets. Now map the scenarios with the items below:

Pranjal is shopping in a departmental store. He has a list of items which he prepared at home itself. He picked a few pa
  1. A

    P1-S1, P2-S3, P3-S4

  2. B

    P1-S2, P2-S1, P3-S3

  3. C

    P1-S2, P2-S1, P3-S4

Show answer

Correct answer

  • B

    P1-S2, P2-S1, P3-S3

Question 28

+1 markWritten answer

Sunrise Foods Pvt. Ltd. is a packaged snacks manufacturer located in Pune. The company uses a special type of corn starch as its key raw material for making chips. The production runs throughout the year, and maintaining a steady supply of raw materials is critical. After reviewing the last year’s consumption pattern, the Operations Manager found the following data: • The company uses 24,000 kg of corn starch annually. • The ordering cost (includes transportation, paperwork, inspection) is ₹250 per order. • The annual holding cost (storage, insurance, spoilage risk) is ₹4 per kg per year. • Corn starch is highly stable and does not deteriorate quickly.[Assume 52 weeks in an year] Based on the above data, answer the given subquestions.

Show answer

A written answer, not marked automatically.

Question 29

+1 markWritten answer

Bluescope company estimates its ordering cost at Rs 400 and carrying cost to be Rs.2/year/unit. The estimated annual requirement is 10,000 units at a unit price of Rs. 10. Calculate the given subquestions:

Show answer

A written answer, not marked automatically.

Question 30

+1 markWritten answer

Suppose you need to accept reservation for a flight. There are total 100 seats in the aircraft. You have two classes of passengers - economy and business. One economy seat gets you 2,500 Rs of revenue while a business seat gets 7,500 Rs. From your experience, you know the demand for business travelers follows a uniform distribution in [10,20]. Then answer the given subquestions:

Show answer

A written answer, not marked automatically.

Question 31

+1 markWritten answer

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.

Show answer

A written answer, not marked automatically.

Question 32

+1 markWritten answer

Ramu puts up a stall for Diwali Light (Diya) every year. He builds a Diya at a cost of Rs. 3 and earns Rs.5 by selling each Diya. Any Diya not sold by Diwali will be discounted to Rs. 1. From his experience, Ramu knows that the demand is Uniformly Distributed within [800, 1000] units. Then answer the given sub-questions:

Show answer

A written answer, not marked automatically.