## GUJARAT TECHNOLOGICAL UNIVERSITY DIPLOMA IN ENGINEERING - SEMESTER 4 - EXAMINATION - SUMMER 2026

| Subject Code: DI04000271                                                                                                  | Subject Code: DI04000271                                                                                                  | Subject Code: DI04000271                                                                                                                                                                                                                                                                                                            | Date: 01/06/2026   |
|---------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------|
| Subject Name:  Operations Management                                                                                      | Subject Name:  Operations Management                                                                                      | Subject Name:  Operations Management                                                                                                                                                                                                                                                                                                |                    |
| Time: 10:30 AM TO 01:00 PM                                                                                                | Time: 10:30 AM TO 01:00 PM                                                                                                | Time: 10:30 AM TO 01:00 PM                                                                                                                                                                                                                                                                                                          | Total Marks: 70    |
| Instructions :                                                                                                            | Instructions :                                                                                                            | Instructions :                                                                                                                                                                                                                                                                                                                      |                    |
| 1. Attempt all questions.                                                                                                 | 1. Attempt all questions.                                                                                                 | 1. Attempt all questions.                                                                                                                                                                                                                                                                                                           |                    |
| 2. Make Suitable assumptions wherever necessary                                                                           | 2. Make Suitable assumptions wherever necessary                                                                           | 2. Make Suitable assumptions wherever necessary                                                                                                                                                                                                                                                                                     |                    |
| 3. Figures to the right indicate full marks. 4. Use of simple calculators and non-programmable scientific calculators are | 3. Figures to the right indicate full marks. 4. Use of simple calculators and non-programmable scientific calculators are | 3. Figures to the right indicate full marks. 4. Use of simple calculators and non-programmable scientific calculators are                                                                                                                                                                                                           |                    |
| permitted.                                                                                                                | permitted.                                                                                                                | permitted.                                                                                                                                                                                                                                                                                                                          |                    |
| 5. English version is authentic.                                                                                          | 5. English version is authentic.                                                                                          | 5. English version is authentic.                                                                                                                                                                                                                                                                                                    |                    |
| Q.1                                                                                                                       | (a)                                                                                                                       | Define operations management and write its objectives.                                                                                                                                                                                                                                                                              | 03                 |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૧                                     | ( અ )                                                                                                                     | ઓપરGLYPH<c=4,font=/QOBAAA+ShrutiRegular> શ GLYPH<c=6,font=/QOBAAA+ShrutiRegular>સ   મ ેન ેજ મ ેGLYPH<c=6,font=/QOBAAA+ShrutiRegular>ટ  ન ી   GLYPH<c=15,font=/QOBAAA+ShrutiRegular>ય ા GLYPH<c=18,font=/QOBAAA+ShrutiRegular>ય ા   આ પ ો  અ ન ે  ત ેન ા   હ GLYPH<c=4,font=/QOBAAA+ShrutiRegular> GLYPH<c=24,font=/QOBAAA+ShrutiRegular>ુઓ લખો. | ૦૩                 |
|                                                                                                                           | (b)                                                                                                                       | Define Productivity. What are the factors affecting Productivity?                                                                                                                                                                                                                                                                   | 04                 |
|                                                                                                                           | ( બ )                                                                                                                     | ઉGLYPH<c=30,font=/QOBAAA+ShrutiRegular>પ ા દ કત ા ન ે  GLYPH<c=15,font=/QOBAAA+ShrutiRegular>ય ા GLYPH<c=18,font=/QOBAAA+ShrutiRegular>ય ા િય ત   કરો.  ઉ GLYPH<c=30,font=/QOBAAA+ShrutiRegular>પ ા દ કત ા ન ે  અ સ ર  કરત ા પ "રબ ળ ો કય ા છે ?                                                                                                  | ૦૪                 |
|                                                                                                                           | (c)                                                                                                                       | Explain product life cycle and standardization.                                                                                                                                                                                                                                                                                     | 07                 |
|                                                                                                                           | ( ક )                                                                                                                     | 'ોડ)ટ લાઇફ સાયકલ અને ,ટાGLYPH<c=6,font=/QOBAAA+ShrutiRegular>ડડા-ઇઝેશન સમ/વો.                                                                                                                                                                                                                                                               | ૦૭                 |
|                                                                                                                           |                                                                                                                           | અથવા                                                                                                                                                                                                                                                                                                                                 |                    |
|                                                                                                                           |                                                                                                                           | OR                                                                                                                                                                                                                                                                                                                                  |                    |
|                                                                                                                           | (c)                                                                                                                       | Explain Product development process and engineering involvement.                                                                                                                                                                                                                                                                    | 07                 |
|                                                                                                                           | ( ક )                                                                                                                     | ઉGLYPH<c=30,font=/QOBAAA+ShrutiRegular>પ ા દ ન   િવ કાસ  '"1યા અને એ3GLYPH<c=6,font=/QOBAAA+ShrutiRegular>જિનય"ર4ગ સ ં ડોવણી સમ/ વો.                                                                                                                                                                                                          | ૦૭                 |
| Q.2                                                                                                                       | (a)                                                                                                                       | Write a short note on symbols used in flow process chart.                                                                                                                                                                                                                                                                           | 03                 |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૨                                     | ( અ )                                                                                                                     | 8લો 'ોસેસ ચાટ-માં વપરાતા 'તીકો પર :ૂંક< ન=ધ લખો.                                                                                                                                                                                                                                                                                                 | ૦૩                 |
|                                                                                                                           | (b)                                                                                                                       | Explain the types of facility layouts.                                                                                                                                                                                                                                                                                              | 04                 |
|                                                                                                                           | ( બ )                                                                                                                     | ફGLYPH<c=4,font=/QOBAAA+ShrutiRegular>િસ?લટ< લેઆઉટના 'કારો સમ/વો.                                                                                                                                                                                                                                                                         | ૦૪                 |
|                                                                                                                           | (c)                                                                                                                       | Explain MRP and MRP-II in detail.                                                                                                                                                                                                                                                                                                   | 07                 |
|                                                                                                                           | ( ક )                                                                                                                     | MRP અને MRP-II િવગતે સમ/વો.                                                                                                                                                                                                                                                                                                             | ૦૭                 |
|                                                                                                                           |                                                                                                                           | અથવા OR                                                                                                                                                                                                                                                                                                                              |                    |
| Q.2                                                                                                                       | (a)                                                                                                                       | Explain flow diagram.                                                                                                                                                                                                                                                                                                               | 03                 |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૨                                     | ( અ )                                                                                                                     | 8લો ડાયાEામ અને F,GHગ ડાયાEામ સમ/વો.                                                                                                                                                                                                                                                                                                         | ૦૩                 |
|                                                                                                                           | (b)                                                                                                                       | Explain Value engineering & value analysis.                                                                                                                                                                                                                                                                                         | 04                 |
|                                                                                                                           | ( બ )                                                                                                                     | IૂJય ઇજનેર< અને I ૂJય િવKલેષણ સમ/વો.                                                                                                                                                                                                                                                                                                       | ૦૪                 |
|                                                                                                                           | (c)                                                                                                                       | Explain role of PPC in manufacturing.                                                                                                                                                                                                                                                                                               | 07                 |
|                                                                                                                           | ( ક )                                                                                                                     |                                                                                                                                                                                                                                                                                                                                     | ૦૭                 |

ઉGLYPH&lt;c=30,font=/QOBAAA+ShrutiRegular&gt;પ ા દ ન મ ા ં   PPC ની N ૂિમકા સમ/વો.

|                                                                                       | (a)   | Explain following terms with reference to PPC. a) scheduling b) dispatching                                                                                                                                   | 03   |
|---------------------------------------------------------------------------------------|-------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------|
|                                                                                       | ( અ ) | PPC ના સંદભ-માં નીચેના પદો સમ/વો.a) શીડRુલSગ                                                                                                                                                                             | ૦૩   |
|                                                                                       |       | b) ડ<,પેચSગ                                                                                                                                                                                                    |      |
|                                                                                       | (b)   | Define inventory and write its types.                                                                                                                                                                         | 04   |
|                                                                                       | ( બ ) | ઇGLYPH<c=6,font=/QOBAAA+ShrutiRegular> વ ેGLYPH<c=6,font=/QOBAAA+ShrutiRegular> ટર<   ન ી   GLYPH<c=15,font=/QOBAAA+ShrutiRegular>ય ા GLYPH<c=18,font=/QOBAAA+ShrutiRegular>ય ા   આ પ ો  અ ન ે  ત ેન ા   ' કા રો  લ ખ ો. | ૦૪   |
|                                                                                       | (c)   | Explain Johnson's Rule with an example.                                                                                                                                                                       | 07   |
|                                                                                       | ( ક ) | જૉનસનનો િનયમ (Johnson's Rule) ઉદાહરણ સાથે સમ/વો.                                                                                                                                                                     | ૦૭   |
|                                                                                       |       | અથવા OR                                                                                                                                                                                                        |      |
| Q.3                                                                                   | (a)   | Explain the strategy of aggregate planning.                                                                                                                                                                   | 03   |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૩ | ( અ ) | એEેગેટ aલાિન4ગની ,GGLYPH<c=4,font=/QOBAAA+ShrutiRegular>ટGLYPH<c=4,font=/QOBAAA+ShrutiRegular>b  સ મ/ વો.                                                                                                           | ૦૩   |
|                                                                                       | (b)   | Explain inventory costs.                                                                                                                                                                                      | 04   |
|                                                                                       | ( બ ) | ઇGLYPH<c=6,font=/QOBAAA+ShrutiRegular> વ ેGLYPH<c=6,font=/QOBAAA+ShrutiRegular> ટર<   ખ ચ -  સ મ / વ ો.                                                                                                         | ૦૪   |
|                                                                                       | (c)   | Explain Gantt chart with example.                                                                                                                                                                             | 07   |
|                                                                                       | ( ક ) | ગેGLYPH<c=6,font=/QOBAAA+ShrutiRegular>ટ  ચ ા ટ - ન ે  ઉ દ ાહરણ સાથે સમ/ વો.                                                                                                                                         | ૦૭   |
| Q.4                                                                                   | (a)   | Define safety stock.                                                                                                                                                                                          | 03   |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૪ | ( અ ) | સેફટ< ,ટોક ની GLYPH<c=15,font=/QOBAAA+ShrutiRegular>યાGLYPH<c=18,font=/QOBAAA+ShrutiRegular>ય ા  આ પ ો.                                                                                                             | ૦૩   |
|                                                                                       | (b)   | Explain Q-system and P-system.                                                                                                                                                                                | 04   |
|                                                                                       | ( બ ) | Q-િસ,ટમ અને P-િસ,ટમ સમ/વો.                                                                                                                                                                                        | ૦૪   |
|                                                                                       | (c)   | Explain the EOQ model (with assumptions).                                                                                                                                                                     | 07   |
|                                                                                       | ( ક ) | EOQ મોડલ સમ/વો (ધારણાઓ સાથે).                                                                                                                                                                                       | ૦૭   |
|                                                                                       |       | અથવા                                                                                                                                                                                                           |      |
|                                                                                       |       | OR                                                                                                                                                                                                            |      |
| Q.4                                                                                   | (a)   | How to use ABC inventory control techniques?                                                                                                                                                                  | 03   |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૪ | ( અ ) | ABC ઇGLYPH<c=6,font=/QOBAAA+ShrutiRegular>વ ેGLYPH<c=6,font=/QOBAAA+ShrutiRegular>ટર<   િન ય ંhણ તકનીકોનો ઉપયોગ કGLYPH<c=4,font=/QOBAAA+ShrutiRegular>વી ર<તે કરવો?                                                     | ૦૩   |
|                                                                                       | (b)   | Explain Just-In-Time (JIT) inventory systems and Kanban.                                                                                                                                                      | 04   |
|                                                                                       | ( બ ) | જ,ટ-ઇન-ટાઇમ (JIT) ઇGLYPH<c=6,font=/QOBAAA+ShrutiRegular>વેGLYPH<c=6,font=/QOBAAA+ShrutiRegular>ટર< િસ,ટjસ અને કાનબન સમ/ વો.                                                                                         | ૦૪   |
|                                                                                       | (c)   | Explain probabilistic inventory model and service levels.                                                                                                                                                     | 07   |
|                                                                                       | ( ક ) | 'ોબે?બ?લF,ટક ઇGLYPH<c=6,font=/QOBAAA+ShrutiRegular>વેGLYPH<c=6,font=/QOBAAA+ShrutiRegular>ટર< મ ોડલ  અ ને સિવkસ લેવલ સમ/ વો.                                                                                          | ૦૭   |
| Q.5                                                                                   | (a)   | Explain the concept of six sigma.                                                                                                                                                                             | 03   |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૫ | ( અ ) | િસ)સ િસlમા GLYPH<c=18,font=/QOBAAA+ShrutiRegular>યાલ િવશે સમ/ વો.                                                                                                                                                    | ૦૩   |
|                                                                                       | (b)   | Explain Total Quality Management (TQM) and its benefits.                                                                                                                                                      | 04   |
|                                                                                       | ( બ ) | mુલ nુણવoા GLYPH<c=15,font=/QOBAAA+ShrutiRegular>યવ,થાપન (TQM) અને તેના ફાયદા સમ/વો.                                                                                                                                    | ૦૪   |
|                                                                                       | (c)   | Explain all 7 QC tools in detail with diagrams.                                                                                                                                                               | 07   |

|                                                                                       | ( ક )   | આmૃિતઓ સાથે બધા 7 QC :ૂJસને િવગતવાર સમ/વો.                                        | ૦૭   |
|---------------------------------------------------------------------------------------|---------|-------------------------------------------------------------------------|------|
|                                                                                       |         | અથવા OR                                                                  |      |
| Q.5                                                                                   | (a)     | Explain about 5 S concepts.                                             | 03   |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૫ | ( અ )   | 5 S GLYPH<c=18,font=/QOBAAA+ShrutiRegular>ય ા લ   િવ શ ે સમ/ વો.            | ૦૩   |
|                                                                                       | (b)     | Explain Single sampaling plan with flow diagram.                        | 04   |
|                                                                                       | ( બ )   | 8લો ડાયાEામ સાથે િસ4ગલ સેjપ?લ4ગ aલાન સમ/વો.                                       | ૦૪   |
|                                                                                       | (c)     | Discuss Statistical Process Control (SPC) and control charts in detail. | 07   |
|                                                                                       | ( )     | ક                                                                       | ૦૭   |

tકડાક&lt;ય '"1યા િનયંhણ (SPC) અને િનયંhણ ચાટ-ની િવગતવાર ચચા- કરો.