VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur 603 203 DEPARTMENT OF MECHANICAL ENGINEERING ME (CAD/CAM) QUESTION BANK III SEMESTER CC 7007 METROLOGY AND NON DESTRUCTIVE TESTING Regulation 2013 Academic Year 2017 18 Prepared by Mr.R.SRINIVASAN Assistant Professor/MECHANICAL
VALLIAMMMAI ENGINEERING COLLEGE DEPARTMENT OF MECHANICAL ENGINEERING M.E (CAD/CAM) CC 7007 METROLOGY AND NON DESTRUCTIVE TESTING QUESTION BANK UNIT-1 MEASURING MACHINES Tool Maker's microscope - Co-ordinate measuring machines - Universal measuring machine - Laser viewers for production profile checks - Image shearing microscope - Use of computers - Machine vision technology - Microprocessors in metrology. PART-A 1 Define microscope. BT1 2 Summarize the uses of CMM. 3 Discuss the important features of CMM 4 Tabulate the errors in TMM. 5 Explain axial length accuracy briefly. 6 Explain the applications of CMM briefly. 7 Compare CMM and UMM BT 5 Evaluate 8 Describe the use of image shearing microscope. 9 Differentiate between sensitivity and range with suitable example. 10 Describe system error and correction. 11 Examine the importance of measurand. 12 Assess the importance of deterministic metrology. BT 5 Evaluate 13 Examine over damped and under damped system briefly. 14 Summarize four methods of measurement BT 5 Evaluate 15 Classify the measuring instruments. 16 Assess the importance of True size BT 5 Evaluate 17 Define actual size. 18 Mention the working principles of machine vision technology
19 Describe the laser viewers for production profile checks 20 Define Span. PART-B 1 Discuss about construction features of tool maker's microscope, working principle and advantages.(13) 2 a. Express the merits and demerits of TMM. (7) b. Differentiate TMM and CMM. (6) 3 a. Illustrate briefly about CMM. (6). b. Examine the importance of CMM in measurement of 3D models.(7) 4 Explain with neat sketch about working principle of CMM.(13) 5 a. Assess the functions of Image Shearing Microscope. (6) b. Summarize the merits and demerits of ISM. (7) BT 5 Evaluate 6 Describe briefly about use of microscope in metrology. Also tabulate the classification, merits and demerits of microscope. (13) 7 Describe the block diagram of generalized measurement system and explain different stages with examples. (13) 8 Examine the working principle and functions of machine vision technology. (13) 9 a. Differentiate between Repeatability and reproducibility. (6) b. Differentiate between Systematic and random error. (7) 10 a. Describe with neat sketches the working principle and applications of the Image shearing microscope.(7) b. Illustrate the use of microprocessors in metrology. (6) 11 Explain with neat diagram the working principle of Laser Beam Machining (LBM).Give also advantages and disadvantages and applications. (13) 12 Describe with neat sketches the working principle and applications of the universal measuring machine.(13) 13 Describe the use of computers in coordinate measuring machine and machine vision technology.(13) 14 Illustrate the working principle of different types of coordinate measuring with neat sketch. (13) BT3
PART-C 1 Narrate on function of CMM and bring out the procedure to measure BT 5 Evaluate the various dimensions of motor body. Mention various types of CMM and possible source of errors associate with them. 2 Illustrate the working methodology of universal measuring machine with reference to computer aided manufacturing. 3 Evaluate the importance of tool maker s microscope in current manufacturing methods. Also explain few applications that use TMM. 4 Discuss the use of computers in various measuring machines. Also explain a contemporary working model that uses computer for measurement. UNIT-2 STATISTICAL QUALITY CONTROL BT 5 Evaluate Data presentation - Statistical measures and tools - Process capability - Confidence and tolerance limits - Control charts for variables and for fraction defectives - Theory of probability - Sampling - ABC standard - Reliability and life testing. PART-A 1 Define control charts 2 What are the types of control charts. 3 Write short notes on process capability Vs tolerance. 4 Differentiate between specification limits and control limits. 5 Define reliability. 6 List the application of control charts. 7 Distinguish between random causes and assignable causes. BT2 8 Describe C chart. BT1 9 Explain acceptance sampling. BT4 10 Define gauge repeatability. BT1 11 Explain the technique of curtailed inspection briefly. BT4 Evaluate 12 Estimate the need of statistical measuring tools. BT3 13 Define the terms: Producers risk, Consumers risk. BT1 14 Explain about custom charts briefly. BT2 15 Distinguish between multiple sampling plans and sequential sampling BT2
plans. 16 Asses the importance of random sampling. BT5 Evaluate 17 Define process capability. BT1 18 Explain the theory of probability. 19 Classify the features of dodge- roming tables. 20 Examine the important indices for measuring process capability. BT5 Evaluate PART-B 1 a. Describe the applications of statistical measurement tools. (7) b. Discuss the principle of methods of random selection. (6) 2 a. Describe briefly on process capabilities.(6) b. Examine the applications of process capabilities. (7) 3 a. Examine briefly theory of probability. (7) b. Discuss the principles of sample selection. (6) 4 Discuss the construction and interpretation of mean chart and range chart and its applications.(13) 5 a. Discuss about reliability and life testing and its application. (7) b. Explain about the measure of process capability and application. (6) 6 Summarize the characteristics, functions, merits, demerits and BT 5 Evaluate applications of sequential sampling plan by attributes. (13) 7 a. the process capability of a production process. (7) b. Classify the important indices for measuring process capability. (6) 8 Drive the acceptance and rejection lines of a plan with a given BT 6 Create producers risk and consumers risk.(13) 9 Illustrate about the three different control charts for variables. (13) 10 Illustrate working methodology and functions of three different control charts for variables.(13) 11 Summarize the rules of combining probability. Also state the functions BT 5 Evaluate of permutation and combination. (13) 12 Explain construction and interpretation of mean chart and range chart. (13) 13 Discuss the ABC standard used in sampling with suitable illustrations. (13)
14 Summarize sampling functional variables based on control charts. (13) BT 5 Evaluate PART-C 1 Describe the application of data presentation in contemporary statistical quality control. Also list the quality control methods used in CNC machines 2 Illustrate the importance of tolerance with reference to tool making. Also explain tolerance charts used in quality control. 3 the control charts used in computer numeric control machines. Also justify the effectiveness of control chart in CNC machines. 4 Discuss the use of theory of probability. Also explain a contemporary model that uses TOP as a tool for control planning UNIT-3 LIQUID PENETRANT AND MAGNETIC PARTICLE TESTS Characteristics of liquid penetrants - different washable systems - Developers - applications - Methods of production of magnetic fields - Principles of operation of magnetic particle test - Applications - Advantages and limitations. PART-A 1 What is the minimum time considered necessary for dark adaption of the eyes prior to evaluating the result of a fluorescent penetrants test 2 Which type of emulsifier is designed to be used as a scrubber 3 List any two important characteristics of liquid penetrants. 4 Write down any two major applications of magnetic particle test 5 Mention three ways by which the required magnetic field can be introduced into a component 6 Illustrate any four discontinuities which can be revealed by penetrants inspection. 7 Name the different liquid penetrants. 8 Describe penetrating agents briefly. BT1 9 Name a few methods for magnetic induction. BT1 10 Illustrate the functions of some electromagnetic materials in relevance to penetrants.
11 Name a few solvent removers. BT1 12 Predict the type of emulsifier that is designed to be used as a scrubber. 13 Examine briefly about solvent removers. 14 Explain briefly the disadvantage of using fluorescent penetrant process. 15 Illustrate the type of penetrant process that would be best suited to detect discontinuities. 16 which type of emulsifier is designed to be used as a finishing coat. 17 Summarize the operation principle of magnetic particles. BT 5 Evaluate 18 Evaluate the functions of liquid penetrating particles. BT 5 Evaluate 19 Name a few solvent removers. 20 Illustrate the type of penetrant process that would be best suited to detect discontinuities. PART-B 1 With a neat explain the working principles of magnetic particle test. Write its application, advantages and limitations 2 (a) Explain the types of solvent removers may be used with a solvent removable penetrants.(7) (b)confer the danger associated with using a wore wire brush during pre-cleaning.(6) 3 Explain about principle operation of magnetic particle test and its applications.(16) 4 (i) Explain the characteristics of liquid penetrants.(7) (ii) Discuss about two methods to produce the magnetic fields.(6) 5 Examine the working, merits and demerits of magnetic crack detectors. (13) 6 Examine the working principle of magnetic particle inspection BT 5 Evaluate method, mention field application and the types of defect that can be detected.(13) 7 Describe the following with regards to liquid penetrants testing (i) Basic principles,equipment and materials commonly used.(7) (ii) Safety and health considerations related to LPT.(6)
8 the working of permanent magnets and electro magnets in MPT. Also mention the merits and demerits.(13) 9 Evaluate the functionality of any four methods that are used to produce magnetic field with respect to particle testing. (13) 10 Examine the working, merits and demerits of magnetic crack detectors. (13) BT 5 Evaluate 11 Illustrate the effect of ferro-magnetism in particle testing. (13) 12 a. Explain the principle of magnetic flaw detection. (10) b. List out the applications of magnetic flaw detection technique. (3) 13 Explain the method of testing defect by (a) oil and dust (6) (b) soap and magnets (7) 14 Illustrate the liquid penetrant method with suitable example. (13) PART-C 1 Evaluate the importance of flaw detection in precision instruments like BT 5 Evaluate CNC/CMM. Also mention the impact of flaws in the same. 2 Illustrate the working methodology of LPT with reference to computational fluid dynamics and computer aided simulation. 3 Describe the importance of magnetic flaw detection in automobile, manufacturing and production industries. 4 Discuss the application of permanent, ferro and electromagnets in nano particle testing and analysis. UNIT-4 RADIO GRAPHY Sources of ray-x-ray production - properties of d and x rays - film characteristics - exposure charts - contrasts - operational characteristics of x ray equipment - applications. PART-A 1 Give brief description about personnel monitoring systems. 2 What are the guide lines for using film badges 3 Summarize the important characteristic of d-ray BT 5 Evaluate 4 State the importance of exposure chart
5 Define anode angle with regard to X-rays and mention its BT1 significance. 6 Specify any two major disadvantages of Gamma rays. 7 Define electromagnetic induction. 8 Define Joule s law and Lenz s law. 9 Discuss Grids. 10 List the functions of anodes. BT1 11 Interpret Thermionic emission principle. 12 Illustrate Fleming s right hand rule. 13 Explain the heating effect of current in joule s law. BT 5 Evaluate 14 Summarize the properties of d rays. BT 5 Evaluate 15 photo electric effect. 16 Assess maximum permissible dose. BT 5 Evaluate 17 Interpret Thermionic emission principle. 18 Evaluate the guidelines for using film badges. BT 5 Evaluate 19 Classify the five type of luminance. 20 Describe personnel monitoring system. PART-B 1 (a) State the types of magnetic materials and explain them in detail.(7) (b) Describe about X-ray tube and its working with the help of diagram(6) 2 Draw a diagram of stationary anode X-ray illustrates and Explains different parts.(13) 3 Discuss the operational characteristic of x-ray equipments and its limitations, applications.(13) 4 (a) Explain about the process of d-ray production and its properties.(7) (b) Explain the importance of film characteristics.(6) BT1 5 Describe the production of X-rays using a modern X-ray tube and housing assembly. Mention the characteristics of X-ray and explain how the intensity of an X-ray beam is reduced by an absorber.(13)
6 Describe the spectral distribution of x-rays be defined by the appropriate choice of filters. Explain how the quality of the image can be assessed by a few physical parameters.(13) 7 a. Differentiate between d-rays and x-rays. (7) b. List the applications of d-rays and x-rays. (6) 8 Explain the various methods of producing x-rays in detail. (13) 9 Illustrate with neat diagram of stationary anode x-ray and explain its different parts. (13) 10 (a) Describe about x-ray tube and its working with diagram.(7) (b) List out the Importance of film characteristics in reference to exposure charts. (6) 11 Describe about x-ray tube and its working with the help of diagram.(13) 12 (a) Explain about conductors and insulators functions in radiography. (9) (b) Discuss the difference of conductors and insulators. (4) 13 State and explain how a faradays law of electrolysis is used to deduce radiation charts. (13) 14 the application of Lenz s law in the production of d-rays and x-rays.(13) PART-C 1 Describe the application of x-rays in crystal structure detection, object scanning and medical imaging 2 Illustrate the importance of exposure charts in bone sampling analysis. 3 the x-ray production methods in the order of succession. Also tabulate the differences in terms of up gradation. 4 Discuss the use of film characteristic in particle testing of computer numeric control and automobile tools. UNIT-5 ULTRASONIC AND ACOUSTIC EMISSION TECHNIQUES Production of ultrasonic waves - different types of waves - general characteristics of waves -pulse echo method - A, B, C scans - Principles of acoustic emission techniques - Advantages and limitations -
Instrumentation - applications. PART-A 1 What is electromagnetic interference? 2 What are principles of ultrasonic sensing? 3 List different types of waves. 4 Write down any two application of acoustic emission techniques. 5 State the principle of piezo-electric effect 6 Differentiate the ripples on a pond and acoustic waves in a structure. 7 Identify how ultrasonic waves are produced. BT1 8 Classify the types of waves. BT4 9 Name the principle of acoustic emission. BT1 10 List the advantages of Ultrasonic waves. BT1 11 Describe surface waves briefly. 12 Discuss lamb Waves briefly. 13 Illustrate pulse echo method briefly. 14 Point out the applications of ultra sound 15 Summarize the effects of diffraction BT 5 Evaluate 16 Summarize ultrasonic measuring principles BT 5 Evaluate 17 Name the principle of ultrasonic sensing 18 Illustrate pulse echo method briefly. 19 Illustrate Contrast diffraction and reflection. BT3 20 Describe the piezo electric effect in testing. PART-B 1 (a)explain briefly on production of ultrasonic waves.(7) (b)write briefly on slosh by damping method.(6) 2 (a)elaborate the principles of acoustic emission technique.(7) (b)what are instruments used for acoustic emission techniques?(6) 3 Illustrate the production of ultrasonic waves with schematic diagram and state the application.(13) 4 Explain the principles of acoustic emission techniques and its application.(13) 5 Explain ultrasonic production using Magnetostuction and Piezo Electric methods. Mention their advantages and disadvantages.(13)
6 Discuss structural loading and acoustic emission activity as well as the acoustic emission monitoring of structural fatigue.(13) 7 Describe in detail the properties and functions of different types of waves. (13) 8 Describe the applications of resonance and ultrasonic waves in detail. (13) 9 Demonstrate the production of ultrasonic waves by different methods. (13) 10 Compare ultrasonic and acoustic emission techniques based on functions, applications and efficiency. (13) 11 a. Explain briefly on tilt sensor. (7) b. Point out the applications of instrumentation. (6) 12 Interpret pulse echo method with A, B, C scans. Also give the merits and demerits of pulse echo method. (13) 13 Interpret A, B, C scans with the output obtained from ultrasonic method. (13) 14 Summarize the principles and applications of acoustic emission techniques. (13) PART-C BT1 BT 5 BT 5 Evaluate Evaluate 1 Evaluate the application and importance of ultrasonic waves in ultra BT 5 Evaluate sound scanning. 2 Illustrate the functions and applications of AMT with reference to astronomical surveying. 3 Describe the application and importance of magnetic resonance waves in medical scanning. 4 Discuss the functions and application of instrumentation in anti lock braking system.