MQC Parikrama Polytechnic College

The app is a handbook covering lecture notes, Video tutorials,Model Answers

Metrology & Quality Control is a subject of mechanical engineering, Metrology is the science of measurement. Metrology includes all theoretical and practical aspects of measurement. The App covers the subject in detail.

The app is a handbook covering lecture notes, Video tutorials,Model Answers, definitions, concepts, diagrams, formulas, theory, laws, tools, equations, calculations,graphs on the subject. The App covers the topic in a flashcard like format, purpose of the App is faster learning and revisions of the subject.

It covers more than 120 topics of Metrology & Quality Control in detail. The topics are divided in 7 units.

Some of topics Covered in this application are:

1. Categories of metrology

2. Industrial metrology, Legal metrology

3. Inspection & its Need

4. Precision & Accuracy

5. Sensitivity, Readability, Calibration, Traceability, Reproducibility

6. Error,Sources of errors

7. Selection of instrument

8. Concept of least count of measuring instruments

9. Standards and Comparators

10. line standard,end standard, Wavelength standard and their comparison

11. Slip gauge and its accessories.

12. Requirement of good comparator, Classification, use of comparators.

13. Working principle of comparators, Dial indicator, Sigma comparator, Pneumatic comparator, Electrical (LVDT).

14. Limits

15. Fits

16. Tolerances and Gauges

17. To understand various types of gauges and their applicability.

18. Hole And Shaft Basis System, Taylor’s Principle

19. Design of Plug, Ring Gauges

20. Angular Measurement

21. Working And Use of Universal Bevel Protractor

22. Sine Bar

23. Spirit Level, Principle of Working of Clinometers

24. Angle Gauges

25. Angle dekkor as an angular comparator

26. Threads and Gear Metrology

27. Various methods of calculating thread elements and elements of gear tooth

28. Screw thread Measurements

29. Errors in threads

30. Measurement of different elements such as major diameter, minor diameter, effective diameter, pitch for internal and external threads

31. Three wire method

32. Thread gauge

33. screw thread micrometer

34. Working principle of floating carriage micrometer

35. Gear Measurement & Testing

36. Measurement of tooth thickness by constant chord method, base tangent method, gear tooth vernier

37. Errors in gears such as backlash,run out,composite,concentricity

38. Parkinson gear tester

39. Testing Techniques

40. terminology of surface finish & measure the surface finish of various components.

41. Measurement of Surface Finish

42. Primary and secondary texture

43. Sampling length, Lay,direction of lay, Sources of lay and its significance

44. CLA, Ra, RMS values

45. Symbol for designating surface finish on drawing

46. Machine Tool Testing

47. Parallelism, Straightness, Squareness, Coaxiallity, roundness, run out.

48. alignment testing of machine tools such as lathe, milling machine and drilling machine as per IS standard procedure

49. Study of optical flat for flatness testing

50. Quality Control

51. the concept of Quality

52. cost of quality

53. meaning of quality of product & services

54. Quality characteristics

55. Quality of design,Quality of conformance,Quality of performance

56. Concept of reliability

57. Quality assurance

58. Quality & Inspection, Inspection stages

59. Total Quality Management

60. Principles and concept of total quantity management

61. Quality Audit: Concept of audit practices, lead assessor certification

62. Six sigma: Statistical meaning, methodology of system Improvement

63. Introduction of ISO 9001-2008.ISO-14000 and TS 16949

64. Statistical Quality Control

65. Basics of Statistical concepts, Meaning and importance of SQC

66. Variable and attribute Measurement

67. control charts – inherent and assignable sources of variation

68. control charts for variables – X & R charts, control charts for attributes p,np,C charts

69. process capability of machine

70. Acceptance Sampling

71. Different types of sampling plans,acceptance sampling

72. OC Curve