Karnataka State Open University (KSOU) 2009 Diploma Statistics Statistical Process Control - - Question Paper

IHHIHHI    SPC 03

Diploma in Statistical Process Control and Operations Research (DSPCOR) Examination, August 2009 STATISTICAL PROCESS CONTROL

Time : 3 Hours    Max. Marks : 90

SECTION - I

Answer any 2 questions and each question carries 15 marks.

1.    Explain the quality function of a firm.

2.    Explain the rules involved in the interpretation of patterns on the control chart.

3.    a) What are defects ? Explain through sample.

b) What chart you specify for defects and describe the steps in construction of the chart where process standards are known ?

4.    Explain the different types of sampling plans and the rules involved in the formation of lot.

SECTION - II

Answer any 4 questions and each question carries 10 marks :

5.    a) What is process variability and define chance and assignable causes of process

variability ?

b) What is cause and effect diagram ?

6.    Explain the two types of quality characteristics used in the construction of control charts.

7. Set up x and R charts and write your comments :

Sample2 No. xi Xp X3 x4 xs 1 16 23 12 11 16 2 11 13 14 17 14 3 13 17 13 13 14 4 16 22 16 17 17 5 10 9 18 14 13 6 15 10 17 10 09 7 16 10 14 10 18 8 10 10 18 17 13 9 12 12 11 18 13 10 16 14 16 15 15

8.    What chart you specify for control chart for defectives and write the control limit for :

i)    Process standards are known.

ii)    Process standards are not known.

9.    The number of nonconforming door hings found in 15 samples of size 300 are shown in the following table :

Sample No. : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Non    : 10 14 12 16 11 14 8 9 7 15 10 16 12 7 20

conforming door hings (d)

Obtain the np-chart.

10.    Explain the acceptance inspection.

11.    Define and draw the graph for ATI and AOQ and specify AOQL.

12.    Define DSP for attributes and steps involved it.

SECTION - III Answer any 4 questions and each question carries 5 marks.

13.    What is TQM ?

14.    Explain the Pareto chart with an example.

15.    What are the advantages of constructing a control chart ?

16.    Explain the rational subgroups.

17.    What is a statistic ? Explain its role in the construction of a control chart.

18.    What is U-chart and write the control limits for it.

19.    Explain OC curves.

20.    What are ATI and AOQ ?

Attachment: karnataka-state-open-university--ksou--2009-diploma-statistics-34220-1.pdf

Earning:   Approval pending.