The IIT Madras BS Industry 4.0 (Industry 4.0) End Term paper sat on 30 Apr 2023, in the January 2023 term: 25 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.
THIS IS QUESTION PAPER FOR THE SUBJECT "DEGREE LEVEL : INDUSTRY 4.0 (COMPUTER BASED EXAM)" ARE YOU SURE YOU HAVE TO WRITE EXAM FOR THIS SUBJECT? CROSS CHECK YOUR HALL TICKET TO CONFIRM THE SUBJECTS TO BE WRITTEN. (IF IT IS NOT THE CORRECT SUBJECT, PLS CHECK THE SECTION AT THE TOP FOR THE SUBJECTS REGISTERED BY YOU)
YES
NO
Correct answer
YES
What brought the first industrial revolution?
Mechanization
Electric Power
Computer
Robotics
Correct answer
Mechanization
The Production rate of an assembly line is determined by its
Slowest station
Fastest station
Idle station
None of these
Correct answer
Slowest station
Which of the following is not a part of the 7 principles of IoT:
Big Analog Data
Quality Control
Constant connection
Real time
Spectrum of insights
Correct answer
Quality Control
What is the decision variable Xi,j denotes in a Traveling Salesman Problem (TSP)
If the sales visits node-j from node-i (binary)
If the sales visits node-j immediately after visiting node-i (binary)
The quantity of an item transferred between node-i and node-j (positive,integer)
Correct answer
If the sales visits node-j immediately after visiting node-i (binary)
Which of the following is an advantage of 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
What are the inputs for an order-up-to-level calculation?
Sales forecast
Lead time
On-hand inventory
Safety stock
Correct answers
Sales forecast
Lead time
On-hand inventory
Safety stock
What is Digitalization? Choose all that are applicable
Pure Analog to Digital Conversion
Use of digital technologies to change the processes
Process of moving towards a digital business
Mere transformation – encoded in digital format
Correct answers
Use of digital technologies to change the processes
Process of moving towards a digital business
Which of the following statements is/are true? Choose all that are applicable
Euclidean distance measures distance as the straight line between 2 points.
Metropolitan distance measures distance with respect to the road availability
None of these
Correct answers
Euclidean distance measures distance as the straight line between 2 points.
Metropolitan distance measures distance with respect to the road availability
Select the correct aims of a routing problem
To visit all locations
To attain minimal travel distance
To attain minimal use of resources
Demand at all locations is satisfied.
Correct answers
To visit all locations
To attain minimal travel distance
To attain minimal use of resources
Demand at all locations is satisfied.
The ten activities specified below are to be performed to make a product. Then answer the given subquestions.
The ten activities specified below are to be performed to make a product. Then answer the given subquestions.
Which of the following is/are an allowable grouping of activities to produce the product if the target is to produce a product every 20 minutes?
Correct answer
The ten activities specified below are to be performed to make a product. Then answer the given subquestions.
The ten activities specified below are to be performed to make a product. Then answer the given subquestions.
What is the balance delay for the line (or lines) identified in the main question? (Enter your answer in % rounded to two decimal places, without the percentage symbol. Eg. If you compute the answer as 0.10005, then enter 10.01 as your answer)
A written answer, not marked automatically.
Currently, a company is using a layout which consists of 9 workstations. 200 sandwiches are produced in a day on this layout. A typical day consists of a single shift which runs for 10 hours. The sandwich-making process consists of 9 activities (the information is provided in the table below).
Currently, a company is using a layout which consists of 9 workstations. 200 sandwiches are produced in a day on this layout. A typical day consists of a single shift which runs for 10 hours. The sandwich-making process consists of 9 activities (the information is provided in the table below). What is the current efficiency of the line where each activity is performed on a separate workstation (enter only the numerical value up to two decimal places without the “%” symbol. Example: if the answer is 99.756%” enter only “99.76”)?
A written answer, not marked automatically.
Which of the following is Digitization?
Conversion of physical 2D drawings to CAD drawings
Creating PLC logic in a microprocessor-based system to process data andidentify insights
Providing real-time maintenance schedule based on real-time machineperformance
None of these
Correct answer
Conversion of physical 2D drawings to CAD drawings
Sky Airlines has to decide its plan for allowing booking a flight between Chennai and Bengaluru. The aircraft has a capacity of 100 (identical seats). The price for economy passengers is INR 1000 per seat whereas for business passengers it is INR 5000 per seat. If the demand for business passengers is uniformly distributed between [10,40], what is the protection level?
34
32
68
70
Correct answer
34
Match the following columns by selecting the correct name from Column B for the labels in column A which are depicted in the ‘Figure: EOQ model’ below:
Match the following columns by selecting the correct name from Column B for the labels in column A which are depicted in the ‘Figure: EOQ model’ below:
A:Cost; B:Quantity; C:Total Cost; D:Carrying cost; E:Order cost; F:EOQ(Q*)
A:Cost; B:Quantity; C:Total cost; D:Order cost; E:Carrying cost; F:EOQ(Q*)
A:Quantity; B:Cost; C:Total Cost; D:Carrying cost; E:Order cost; F:EOQ(Q*)
A:Quantity; B:Cost; C:Total Cost; D:Order cost; E:Carrying cost; F:EOQ(Q*)
A:Cost; B:EOQ(Q*); C:Total Cost; D:Order cost; E:Carrying cost; F:Quantity
A:Total cost; B:EOQ(Q*); C:Cost; D:Order cost; E:Carrying cost; F:Quantity
A:Total cost; B:Quantity; C:Cost; D:Carrying cost; E:Order cost; F: EOQ(Q*)
Correct answer
A:Cost; B:Quantity; C:Total cost; D:Order cost; E:Carrying cost; F:EOQ(Q*)
At EOQ, the carrying cost is
Minimum
Equal to the order cost
Lower than the order cost
Higher than the order cost
Correct answer
Equal to the order cost
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 on the neighbouring shelves. He picked a few milk-powder packets. However, these were not part of his list. He was searching for Good-day biscuits. He could identify only one packet on the shelf. However, there were a lot of Sun-feast biscuits lying on the next shelf. So, he picked ten Sun-feast 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 packets of tea as part of his list. He could see coffee packets and milk-powder packets on the neighbouring shelves. He picked a few milk-powder packets. However, these were not part of his list. He was searching for Good-day biscuits. He could identify only one packet on the shelf. However, there were a lot of Sun-feast biscuits lying on the next shelf. So, he picked ten Sun-feast packets. Now map the scenarios with the items below:
P1-S1, P2-S3, P3-S4
P1-S2, P2-S1, P3-S3
P1-S2, P2-S1, P3-S4
Correct answer
P1-S2, P2-S1, P3-S3
Limat Ltd. wants to determine its order quantity for one of its components. The annual consumption for the component is 80,000 units and its purchasing price is Rs. 50 per unit. The cost of placing an order is Rs. 1,200 and carrying cost per unit is 6% of the purchasing price. Based on the above data, answer the given subquestions.
Calculate the Economic Order Quantity (EOQ).
A written answer, not marked automatically.
Limat Ltd. wants to determine its order quantity for one of its components. The annual consumption for the component is 80,000 units and its purchasing price is Rs. 50 per unit. The cost of placing an order is Rs. 1,200 and carrying cost per unit is 6% of the purchasing price. Based on the above data, answer the given subquestions.
Calculate the number of orders per year.
A written answer, not marked automatically.
Limat Ltd. wants to determine its order quantity for one of its components. The annual consumption for the component is 80,000 units and its purchasing price is Rs. 50 per unit. The cost of placing an order is Rs. 1,200 and carrying cost per unit is 6% of the purchasing price. Based on the above data, answer the given subquestions.
Calculate the annual order cost.
A written answer, not marked automatically.
Limat Ltd. wants to determine its order quantity for one of its components. The annual consumption for the component is 80,000 units and its purchasing price is Rs. 50 per unit. The cost of placing an order is Rs. 1,200 and carrying cost per unit is 6% of the purchasing price. Based on the above data, answer the given subquestions.
Calculate the annual inventory carrying cost.
A written answer, not marked automatically.
Which of the following is/are considered in the Vehicle Routing Problem but not considered in TSP?
Subtour elimination
Any capacity restrictions
A specific starting point
Multiple salesman
Correct answers
Any capacity restrictions
A specific starting point
Multiple salesman
The ten activities specified below are to be performed to make a product. Then answer the given subquestions.
The ten activities specified below are to be performed to make a product. Then answer the given subquestions.
A written answer, not marked automatically.
Limat Ltd. wants to determine its order quantity for one of its components. The annual consumption for the component is 80,000 units and its purchasing price is Rs. 50 per unit. The cost of placing an order is Rs. 1,200 and carrying cost per unit is 6% of the purchasing price. Based on the above data, answer the given subquestions.
A written answer, not marked automatically.
