1.a. Differentiate between Precision \& Accuracy with suitable examples.

1.b. Determine the tolerance on hole and shaft for a precision running fit designated by 40 $\mathrm{H} 7 \mathrm{g} 6.40 \mathrm{mm}$ lies in the diameter step of $30-50 \mathrm{mm}$ . $\mathrm{i}=0.45(\mathrm{D}) \mathrm{X}+0.001 \mathrm{D}$ -microns. Fundamental deviation of $\mathrm{g}$ shaft $=-2.5 \mathrm{D}^{0.34}$ State the actual maximum and minimum size of both hole and shaft. $\mathrm{IT} 7=16 \mathrm{i}, \mathrm{ITT} 6=10 \mathrm{i}$ .

2.a. Explain any one method of assessing the surface finish.

2.b. Explain tool makers microscope $\&$ their application.

3.a. Explain laser interferometer $\&$ its application.

3.b. Write short note on machine vision system.

4.a. State $\&$ explain Taylor's principle of gauge design with example.

4.b. Explain method of measuring effective diameter using two wires with neat sketch.

5.a. Explain Jurans triology approach with diagram.

5.b. State seven new quality tools. Explain any three in detail.

6.a. What is cost of quality? Explain Cost of failure, cost of appraisal $\&$ Cost of prevention.

6.b. What is initial planning for quality? Explain in details.

7.a. What are advantages of sampling inspection over 100$\%$ inspection? Explain the difference between Single sampling \& Double sampling plan.

7.b. Following is the record for successive lots of part being produced by plastic molding press. As each lot is come off the line a random sample of 150 pieces were inspected (results are expressed to the nearest 0.1$\%$ ). Calculate $\overline{p}$ , Control limits \& plot control chart and comment.

Lot no.	Sample size	No. of defectives
1	150	4
2	150	8
3	150	2
4	150	4
5	150	4
6	150	6
7	150	10
8	150	4
9	150	6
10	150	8

8.a. Write short note on OC curve $\&$ its characteristics.

8.b. Explain single sampling plan with flow chart. For the given data calculate sample size and AOQ for single sampling plan.

i) Probability of acceptance for 0.3$\%$ defectives in a lot is 0.558

ii) Lot size $\mathrm{N}=10000$ - anits

iii) $\mathrm{np}^{\prime}=1,5$

iv) Acceptance number $\mathrm{c}=1$

v) Defectives found in the sample are not to be replaced.

9.a. 5s

9.b. Zero defects

9.c. FMECA

9.d. TS-16949

9.e. Quality audit.