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Industry 4.0 · All 2025 papers

20 questions · 20 marks · 1 paper

Answer key

Indian Institute of Technology Madras

BS Degree Programme · Examination & Study Paper

Industry 4.0

All 2025 papers

Official Paper

Examination Instructions & Guidelines

Solve on notebook/paper first before checking solutions.
MCQ: Exactly 1 option is correct. Negative marking applies.
MSQ: One or more options correct. Select all to score.
NAT: Numerical response. No negative marking.
Scientific calculator allowed for all calculations.
Official answer key is sealed at the end of this sheet.

Q1MCQ1 Mark·Choose one option
Key ↓
Match Col A with Col B for landmark outcome of industrial era :
1. A1.0:CNC, 2.0:Mass production, 3.0: Digitization, 4.0:Steam Engine
2. B1.0:Steam Engine, 2.0:mass production, 3.0: digitization, 4.0:CNC
3. C1.0:Mass production, 2.0:Steam Engine, 3.0: digitization, 4.0:CNC
4. D1.0:Steam Engine, 2.0:mass production, 3.0: CNC, 4.0: Digitization
Q2MCQ1 Mark·Choose one option
Key ↓
Identify the Industry 4.0 version of transportation.
1. AIC engine
2. BElectric car
3. CHyperloop
Q3MCQ1 Mark·Choose one option
Key ↓
Select the layout(s) which do not require general supervision:
1. AProduct layout
2. BProcess layout
3. CGroup layout
4. DFixed position layout
Q4MCQ1 Mark·Choose one option
Key ↓
Which of the following is an advantage of Process Layout?
1. ALow material handling
2. BTotal production time per unit is small
3. CLow training cost for the operators
4. DIt can accommodate high variety of products
Q5MCQ1 Mark·Choose one option
Key ↓
Following is the layout from an aircraft manufacturing company. Identify the layout from the figure below.
1. AProduct layout
2. BProcess Layout
3. CGroup layout
4. DFixed position layout.
Q6MCQ1 Mark·Choose one option
Key ↓
Select the appropriate layout for Quadrants A, B, D in the following figure:
1. AA: Group layout, B: Product layout , D: Process layout
2. BA: Product layout, B: Process layout , D: Group layout
3. CA:Process layout, B:Group layout , D: Product layout
Q7MCQ1 Mark·Choose one option
Key ↓
Which of the following is an advantage of Product Layout?
1. ASmall in-process inventory
2. BIt can accommodate high variety of products
3. CHigh utilization of machines
4. DLow investment
Q8MCQ1 Mark·Choose one option
Key ↓
The Production rate of an assembly line is determined by its
1. ASlowest station
2. BFastest station
3. CIdle station
4. DNone of these
Q9MSQ1 Mark·Choose all correct options
Key ↓
Select the correct statements from below:
1. AOptimal solution in a facility location problem using Euclidean method will result in a region
2. BOptimal solution in a facility location problem using Euclidean method rarely matches the center of gravity
3. COptimal solution in a facility location problem using Euclidean method will result in a point
4. DOptimal solution in a facility location problem using Euclidean method matches the center of gravity in not of the cases
Q10MSQ1 Mark·Choose all correct options
Key ↓
Identify the examples for Offshoring from the list below:
1. AMicron Technology, a US based semiconductor giant, setting up a Supply Chain Analytics team, in India.
2. BMicron signs an agreement with Taiwan based TSMC Co., to manufacture sillicon wafer for their ICs.
3. CWestern Australia’s electricity network agency assigns Tata Consultancy Services at Pune, to support it with an overhaul of its legacy IT systems, aimed at delivering cheaper and more reliable power.
4. DTata Motors assigns the manufacturing of its braking system to TACO group.
Read the passage below, then answer Q11–Q12
A factory works for two 8-hour shifts each day and produces a total of 30,000 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. Answer the given subquestions:
Q11NAT1 Mark·Write the number
Key ↓
What is the cycle time (in seconds) at any workstations (round your answer to one decimal e.g. if your answer is 1.89 then enter your answer as 1.9)
Your answer:
Q12NAT1 Mark·Write the number
Key ↓
What is the theoretical minimum number of workstations required?
Your answer:
Read the passage below, then answer Q13–Q17
Consider the following precedence diagram. It has 12 activities. The numbers in blue and withing the braces denote the respective activity times in minute.
Based on the above data, answer the given subquestions.
Q13NAT1 Mark·Write the number
Key ↓
What is the minimum cycle time of the system (answer in minutes without the unit e.g. if your answer is 10 min enter as 10)?
Your answer:
Q14NAT1 Mark·Write the number
Key ↓
What is the maximum cycle time of the system?
Your answer:
Q15MCQ1 Mark·Choose one option
Key ↓
The factory works for one 8-hour shifts each day. Is it possible to achieve an output of 32 units/day
1. ANo
2. BYes
Q16NAT1 Mark·Write the number
Key ↓
What is the balance delay of the following layout (round it to two decimals) (1,2) -> (3) -> (4) -> (5) -> (6,7) -> (8,9) -> (10,11,12) (Instruction: if your answer is 14.52%, enter as 14.5)
Your answer:
Q17NAT1 Mark·Write the number
Key ↓
What is the efficiency of the given layout? (Instruction: Round off to two decimals without percentage sign. If your answer is 70.51%, enter as 70.5)
Your answer:
Q18MSQ1 Mark·Choose all correct options
Key ↓
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.
1. A(2,2)
2. B(3,2)
3. C(2.5,2)
4. D(2,3)
Q19NAT1 Mark·Write the number
Key ↓
Calculate the Euclidean distance between two machines located at the coordinates A(5,10) and B(2,6) in a shop floor. [round off your answer to one decimal]
Your answer:
Q20MCQ1 Mark·Choose one option
Key ↓
POCOMO Mobile manufactures mobile phones of various types. Their product portfolio comprises of 15 types of headsets. These headsets comprise of limited types of components. Only a few of the components needs customization for different headsets. Which facility layout will best suit for POCOMO Mobile’s production?
1. AProduct layout
2. BGroup layout
3. CFixed position layout
4. DAll of these

Official Key

Master Answer Key & Explanations

Official answer keys from IIT Madras BS past papers. Click any question to review.

Reveal Key

Q1D

Q2C

Q3B

Q4D

Q5D

Q6C

Q7A

Q8A

Q9B, C

Q10A, B

Q111.7 to 2

Q127

Q1312

Q1485

Q15B

Q1618.5 to 19.5

Q1780 to 81

Q18A, B, C

Q194.8 to 5.3

Q20B

Questions and answer keys are reproduced from the official IIT Madras BS papers. BTechi is not affiliated with IIT Madras.