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GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING – SEMESTER – • EXAMINATION – SUMMER-2015
Subject Code: 3351904 Date:12/05/2015
Subject Name: Industrial Engineering
Time: 2:30 pm to 5:00 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. What do mean by Kaizen?
2. Write the names of any 4 material handling equipment.
3. What is consumer’s risk?
4. Draw the pattern of Trend and Stratification.
5. What is reliability?
6. The observations are 4,8,2,3,4,9,8,6.Find mean ,mode and median.
7. Name the types of distribution curve and draw the diagram ofany one.
8. Name 4 charts used in method study
9. The observed time20min., rating factor is 1,contingency allowance is 5% Find the standard time .
10. Draw the Therblig symbols for search, assemble, find and inspect.
Q.2 (a) List the factors influencing productivity 03
OR
(a) What is standard time? Explain its importance. 03
(b) What is the relation between industrial engineering and prosperity? 03
OR
(b) State the objectives of method study. 03
(c) List the types of work element and explain any two 04
OR
(c) Write short note on i)Simo chart ii)Flow process chart 04
(d) Draw the symbols used in flow process chart and man machinechart. 04
OR
(d) Define SQC and list the tools of SQC Explain any one briefly. 04
Q.3 (a) What is micromotion study and state its objectives. 03
OR
(a) A worker completes a work element in 0.16 min. If the rating given to him is 125% then calculate the basic time What will be the standard time with 0% allowance. 03
(b) State the objectives of plant layout. 03
OR
(b) What is ergonomics? Write the objectives of ergonomics. 03
(c) From the data given below find mean and standard deviation 04
(c) The maximum diameter of the component is25.10 mean 25.05, SD. =0.05.Findhow many components will be above maximum limit. The total components manufactured is 500 nos.(For Z=1 A=0.34, Z=2A=0.47,Z=3 A=0.49)
(d) Draw the normal distribution curve. Show percentage area covered under various specification limits. Explain the curve .State the applicability of the curve. 04
OR
(d) Draw the appropriate chart from the given detail 04
Q4 (a) Write short note on Just in Time 03
OR
(a) State the difference between method study and time study 03
(b) Explain the concept of six sigma 04
OR
(b) State the advantages and disadvantages of acceptance sampling
(c) .From the data given below, draw the appropriate chart and makethe conclusion 07
Q.5 (a) Draw the sampling plan N=2400, n1=150,a1=5,r1=8,n2=150, a2=9,r2=10 04
(b) In a chart upper control limit is 52.50and x double bar=48.25, if subgroup size is4,find(i) lower control limit of x bar chart (ii) process capability. ( A2=0.729, D3=0,D4=20282,d2=2.059) 04
(c) Define industrial engineering and state various techniques used in it. 03
(d) Write short note on Re engineering 03
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