Metrology and Quality Control Notes | Syllabus, Reference Books and Important Questions

Metrology and Quality Control Notes:  Metrology and quality control are two of such topics that can appear in multiple streams of studies. Different fields have different approaches to dealing with metrology and quality control. Hence, the curriculum varies from subject to the subject of these two topics. However, all the required notes and samples are available to guide the student throughout their time with these subjects. Students can refer to the Big Data Lecture Notes For CSE as per the latest and updated syllabus from this article.

This article will contain a few briefs about the most salient features of these two topics that a student might come across.

Introduction to Metrology and Quality Control

Metrology is the study of scientific methods of measurements. And quality control is the study of review of quality issues that take place in any production. The intersection of metrology and quality control happens when quality assurance needs to be done in terms of measurement. The metrology has different segments of sizes. Few types of measures that are commonly taught about are the physical measurement system (height, weight, masses, lengths etc.), Geometrical measurements (line, angle, area, volume etc.), Surface measurements (roughness, friction etc.). Few instruments that are generally used for the measurement purposes are a gauge, spectrometers, weight machines etc.).  Quality control is a vast chapter.

This can be used to compare or determine anything at the production level. Studying Quality control entails the study of quality management, ISO certifications, Quality policies, Quality ratings etc. This department carries a tremendous responsibility since the quality of a product matters the most in terms of usability. Quality management has application in every field you can think of, starting from medicine to automobile, Construction or food, everything has to go through the scan of quality check before it is released in the market.

Whereas metrology defines a standard constant system for the whole world that obligates everyone to use the same units for measurements, Quality control regulations vary from country to country. In fact, no countries have the same guidelines when it comes to quality assurance or grading. Furthermore, quality assurance plays a considerable role in deciding a country’s economy because the import-export sector is heavily dependent on the quality management sector of the country. Since, different countries have different guidelines, the product to be manufactured and exported needs to follow the said guidelines that the respective country follows.

Metrology and Quality Control Reference Books

Following the best books to prepare is very important not only for good grades but also for a specific and comprehensive knowledge of the subject. And performing in the field is impossible without the precise command of the subjects as well as their practical application. Few books to be recommended are

  • Quality assurance for chemistry and environmental science: Metrology from pH measurement to Nuclear waste disposal by Gunther Meinrath and Petra Schneider
  • Metrology in the industry from the French college of metrology,
  • Metrologies and properties of Engineering surface by E Mainsah and James Greenwood.
    Quality in chemical measurements
  • Metrology and quality control by Dr A M Badadhe, SG Shilwant and Dr B Anand
  • Metrology and Quality control by Paras A Palatka
  • Decode Metrology and Quality control for SPPU by Decode
  • Metrology in the industry: the key for Quality by Dominique Placko and French college of metrology
  • Quality in Chemical Measurements: training concepts and teaching material by Wolfhard and WEgscheider and Bernd Neidhart.

Aloof of specific, there are a lot of materials available on the internet about the topics collectively and separately as well. You can prepare by taking the help of these books as mentioned earlier or the material on the internet to score good and understand better.

Metrology and Quality Control Curriculum

  • Unit – I Measurement standards and design of gauges
Introduction, Calibration, Measurement, Design of Gauges, Types of gauges
  • Unit –II Comparators, Thread and Gear Metrology, Surface Roughness Measurement
Comparators. Measurement of Thread form, Gear Metrology, Measurement: Introduction to Surface texture, Parameters for measuring surface roughness, Surface roughness measuring instrument: TalySurf.
  • Unit – III Advances in Metrology
Concept of Quality, Importance of Quality deployment at Design and Manufacturing Engineering, the idea of controllability
  • Unit – IV Advances in Metrology
Coordinate Measuring Machine (CMM), I
  • Unit –V Statistical quality control
The interferometer, Laser Metrology.

Statistical quality control, Acceptance Sampling, Sampling Plan

  • Unit –VI Total Quality Management
TQM, Six Sigma, Quality Management System Need for a quality management system, ISO 9001, TS-16949, ISO-14000, Quality Audit.

Metrology and Quality Control Important questions

Here is a list of essential and theoretical questions that have appeared from time to time in different question papers

  1. Difference between systematic errors and random errors
  2. Draw a neat sketch of vernier calliper and how to calculate the least count of vernier calliper. Explain with an example.
  3. State different types of comparators. Explain sigma comparator in detail.
  4. Write short notes on types of standards and electrical comparator.
  5. Explain in detail with a flow chart the single sampling and double sampling plan
  6. Explain the multiple sampling plans with s flow chart.
  7. Define product risk, consumer risk and AQQL and AQQ.
  8. Explain quality function development and its benefits.
  9. Explain JIT concept in industry.
  10. Explain the following: (a) Seven Quality New tools (b) Quality circle, (c) Characteristics of quality.
  11. Explain the following: (a) Seven Quality New tools (b) Quality circle, (c) Characteristics of quality.
  12. Explain NPL Flatness interferometer with a neat sketch and write its application.
  13. Explain hole basic and shaft basic system.
  14. Explain the method of measuring effective diameter using three wires with a neat sketch.
  15. Write short notes on (any three): a) ISO 9000 (b) Quality audit (c) FMECA (d) Six sigma.
  16. Write short notes on (any three): ISO 9000 (b) Quality audit (c) FMECA (d) Six sigma (e) 5s
  17. Explain the following (a) Seven Quality New tools, (b) Quality circle (c) Characteristics of quality.
  18. Explain with OC curve and state Producer’s risk, Consumer’s risk, AOQL and LTPD.
  19. Control chart for X&R is maintained for control of an essential dimension of a component the subgroup and value of ∑X & ∑R after 25 subgroups are found to be 614.8 & 120 respectively compute the value of 3σ limit for X- chart R=2.32 σ.
  20. Explain NPL Flatness interferometer with a neat sketch and write its application.

FAQ’s on Metrology and Quality Control Notes

Question 1.
Do different streams of studies entail different types of syllabus for quality management and metrology?

The application of metrology and quality control is vast and present in almost all sectors. The introductory study of the topics is, however, the same, but the specialized courses include studying the precise application of quality control and measurements in that particular field.

For example, the subjects taught in food technology in terms of quality control and metrology will be different than the ones taught for the automobile sector and so on.

Question 2.
Are there specialized studies in different sectors which include quality management and metrology?

Quality control is the most crucial aspect of the whole process of production and marketing. Whosoever is responsible for these needs to have extreme intricate knowledge about the job which is only possible when you have studied about the subject separately and in-depth?

Question 3.
What are the career options after you have studied quality management and metrology?

There are a lot of career options to look into when it comes to quality management and metrology. And all the jobs pay well and trains just as well. For example, one can become a quality assurance manager, Quality inspector etc. And these posts of positions are available with every firm in the world whether they are providing services or products.

Question 4.
How much are Quality management and metrology related to engineering in general?

Quality management and metrology are connected to engineering. Most branches of engineering like mechanical, chemical, electrical, civil etc. rely heavily on quality management and metrology subjects. Not only engineering, other units of study like design (architecture, fashion technology), Software (computer science, information science, telecommunication etc.) depend on these two topics for a few subjects.

Question 5. 
Are metrology and quality management connected?

By definition of the two, they are not connected. One defines a scientific measurement system, and the other entails quality check-up. However, manufacturing a product makes sure it reaches the market in the way possible quality management and metrology to work together. Hence, the subject was made where these two topics are taught simultaneously, keeping in mind their interdependence.


Metrology and quality measurements not only give a chance to learn but also explore this dynamic field. With new occurrences all around us every single day, more current topics are getting added to the guidelines of quality check and metrology fields. In the end, it is a great time to be associated with this discipline if you are willing to contribute to the positive changes happening every day.