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GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING – SEMESTER – V• EXAMINATION – SUMMER 2016
Subject Code: 3351904 Date:16/05/2016
Subject Name: Industrial Engineering
Time: 02:30 PM to 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable & Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.
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Q.1 Answer any seven out of ten. 14
1. State various methods to increase productivity.
2. State Factors influencing productivity.
3. List the steps of method study.
4. State various techniques of work study.
5. State factor affecting reliability.
6. How F.P.C differs from O.P.C?
7. State objectives of micro motion study
8. List time measuring equipment.
9. Define performance rating.
10. Enlist the various charts and diagrams used in method study.
Q.2 (a) State objectives of Industrial Engineering. 03
OR
(a) Explain time measuring methods. 03
(b) Define therbligs and draw four symbols of therbligs. 03
OR
(b) Explain string diagram. 03
(c) In -R chart upper control limit is 52.50 and is 48.25. If subgroup size is 4, find the following(i) Lower control limit of - chart. (ii) Control limits of R-chart.[ constants- A2 =0.729, D3=0, D4= 2.282 ] 04
OR
(c) State types of control charts and explain C-chart. 04
(d) Explain in brief man machine chart? 04
OR
(d) State advantages and disadvantages of work sampling. 04
Q.3 (a) State various steps of time study. 03
OR
(a) State objectives of work measurement. 03
(b) A batch of 100 products was inspected. Out of which 85 products were found as per specification and 15 products were rejected, then what will be the probability of acceptable and rejected products? 03
OR
(b) Explain total quality cycle. 03
(c) Explain procedure to calculate standard time. 04
OR
(c) Calculate standard time from following data for one cycle:
Loading time = 1.82min.
Machining time =6.25min.
Unloading time =0.77min.
Inspection time =0.56min.
Overall rating of the cycle =90%.
Over all allowances =10% of basic time. 04
(d) Write short note on I.S.O. 04
OR
(d) Explain normal working area and maximum working area. 04
Q.4 (a) State advantages and limitation of product type plant layout. 03
OR
(a) Explain features of good material handling system. 03
(b) State advantages and limitation of process type plant layout. 04
OR
(b) Which factors to be considered during selection of plant layout? 04
(c) Define acceptance sampling and explain its advantage and disadvantages. 07
Q.5 (a) Explain P.M.T.S 04
(b) Differentiate between attribute and variable quality. 04
(c) Write short note on zero defect. 03
(d) Explain concept of Re-engineering. 03
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