Although the LVDT is a displacement sensor, many other physical quantities can be sensed by converting displacement to the desired quantity via thoughtful arrangements. A vernier scale uses a second elongated scale to interpolate values on a major scale. The linear variable differential transformer (LVDT) (also called just a differential transformer) is a type of electromechanical transformer used to convert linear displacement into electrical signal. Every measuring system must be provable. Learners will be introduced to principles of measurement and the use of comparators and gauges, along with sampling and statistical process control (SPC). It is an indirect type of instrument and used for linear measurement. Course Outline; Announcements; Courses Offered; Materials; Publications; MMM LAB VIVA Questions. 12. Mechanical Measurements And Metrology Viva Question Answer Indian Institute Of Science Bangalore Iisc Ac In. This atmospheric pressure is measured with the help of Barometer. “Rise time” is defined as the time taken for system to change from 5% to 95% of its final value. Define least count. In this post Measurement / Metrology Engineering related interview questions with answers are shared which may frequently asked at the time of interview ,viva or oral examination specially For interview Quality Inspector . The process of determining the amount, degree, or capacity by comparison (direct or indirect) with the accepted standards of the system units being used. Its value is close to 1.013 x 105 N/m2 absolute and decreases with altitude. There are two 9. lab viva questions anna university eee cse it ece eie. What is Range? Define Readability & Threshold. A list of top frequently asked Control System interview questions and answers are given below.. 1) What is meant by System? Slip gauges a very accurately ground block of hardened steel used to measure a gap with close accuracy: used mainly in tool-making and inspection. There are standard for different types of fits (e.g. Atmospheric Pressure: 4. 23. ∗ Meeting the requirements of ISO 9000 & 17025. Additionally, he has interested in Product Design, Animation, and Project design. 27. EXPNO.1 MEASUREMENT OF RESISTANCE USING WHEATSTONE BRIDGE. Sensitivity is the ratio of the magnitude of the output quantity (response) to the magnitude of input quantity. There are number of moving parts which create problems due to friction, and ultimately the accuracy is less. (3) Draw neat diagrams wherever necessary. 4. When junctions of this type are used to measure temperature, they are called as thermocouples. measure the pressure. It is the extension of sine bars where two ends are provided on which centers can be Clamped. “Something that is set up & established by an authority as a rule of the measure of the quantity, weight, extent, value or quality” Ex: A meter is a standard established by an international organization for the measure of length. In dynamic pressure, there exists a pressure gradient within the system. a negative gage pressure. Indian Institute of Science 1 / 4 It represents the summation of atmospheric pressure and gauge pressure. procedure adopted to prove the ability of a measuring system to measure reliably is called ‘calibration’. It is also the maximum permissible variation on every specified dimension. Answer. MECHANICAL MEASUREMENTS AND INSTRUMENTATION R13 Regulation B.Tech JNTUK-kakinada Old question papers previous question papers download. Thank you For Visiting. What Type Of Control Valves Used In The Industry ? What are advantages and disadvantages of mechanical comparator? Free PDF Books. Mention its unit?What is volume flow rate?… Readability indicates the closeness with which the scale of the instrument may be read. 1) what is Mechanics? ANS: It is defined as branch of physical science which is concerned with the study of various forces acting on a body when body is in state of rest or in motion. ans : There are a number of things to take into account while specifying the right pressure gauge for your application. Each material expands at a different rate. A measuring system is said to be a linear if the output is linearly proportional to the input. The instrument may become sensitive to vibration due to high inertia. An allowance is an intentional difference between two dimensions to allow for press fits, running fits, etc. Thorough evaluation of newly developed products, and to ensure that components are within the specified dimensions. An instrument is said to exhibit hysteresis when there is a difference in readings depending on whether the value of the measured quantity is approached from higher value or from a lower value. Engineering 2021 , Engineering Interview Questions.com. Mechanical Comparator, Pneumatic Comparator, Optical Comparator, Electrical Comparator, Electronic Comparator and Combined Comparator (ex: mechanical –optical comparator). Mention different methods of measurements. In other words, to and fro motion of a particle about a fixed point is known as vibration. 6. Mechanical Measurements And Metrology Viva Question Answer are a great way to achieve information regarding operatingcertain products. Module 5 – Force, Torque, and Pressure Measurement. 300 TOP MECHANICAL Engineering LAB VIVA Questions And Answers. It is a branch of engineering that is related to industrial application of mechanics and with the tools, machinery and their products. Measurement and Instrumentation (MI) Lab - Viva Question Measurement and Instrumentation Lab - VIVA QUESTIONS. A Load cell is a transducer that is used to convert a force into an electrical signal. 10. We made use of a scale/ steel rule (i.e. If What you looking for is not here, you may send a request to modify articles, Notes, and Content modification, Feedback, Suggestions here (Team will reply as early as Possible ):  Contact Form or Using Whatsapp, © 2021 Copyright Learn Mechanical Engineering, Metrology Interview Questions and Answers For Mechanical Student. This enables the direct control of flow rate and the consequential control of process quantities such as pressure, temperature, and liquid level. Range is limited as the pointer moves over a fixed scale. If the output is faithful to input, i.e. IGNOU Downloads. Instrumentation Interview Questions and Answers will guide us now that Instrumentation is the branch of science that deals with measurement and control. Units & Measurements Material Science Scientific Inventions Basic Technology ... Control Systems Lab Viva Questions & Answers Electrical Lab Edit ... Model of mechanical translational system can be obtained by using three basic elements Mass, spring and Dash-pot. The process of determining the amount, degree, or capacity by comparison (direct or indirect) with the accepted standards of the system units being used. Why is a micrometer used for precise measurement of components in mechanical engineering? Indicated value ( vi ) or Measured value ( vm ) How can a vernier scale provide higher accuracy? 8. methods of measurement: 1) direct comparison with primary or secondary standard & 2) indirect comparison through the use of calibrated system. 30. It is used for measurement of an angle of a given job or for setting an angle. press fit, running clearance). Since this comparison cannot be perfect, measurements inherently include error. Mechanical Measurement and Metrology [17ME46B] Search this site. Metrology is the process of making extremely precise measurements of the relative positions and orientations of different optical and mechanical components. Courses Of Study IIT Gandhinagar. These are useful for testing of conical work centered at each end, up to 60°. He also likes to write articles related to the mechanical engineering field and tries to motivate other mechanical engineering students by his innovative project ideas, design, models and videos. These standards are used to calibrate and verify measuring instruments. Set - 1 - Mechatronics - This test comprises of 30 questions on Mechatronics. 37. How are a ring gauge and a plug gauge different? The Dear Readers, Welcome to Metrology and Quality Control multiple choice questions and answers with explanation. If these tolerances are controlled the final product will work as planned. What are dimensional tolerances, and what are their primary uses? 3. courses of study iit gandhinagar. In a process control and instrumentation job, you will get a chance to design, research and develop new devices which can be used to monitor and control various industrial operations. Measurement of gear tooth profile using gear tooth vernier /Gear tooth micrometer 8. The magnitude of the input signal indicated by a measuring instrument is known as a indicated value. A discussion on types of control valves and control valve actuators was added to Chapter 10 and the section on control valve sizing was expanded and improved. Dictionary com s List of Every Word of the Year. (A) The transfer functions of the measuring element and the process is represent by H and G 2 respectively (B) The overall transfer function for the change in load (X = 0) is given by Y/X 1 = (G c.G 1. Measurement Systems: Applications & design by D.S Kumar. What is metrology? Very good excellent website for achieving in technology field all Engineer, Your email address will not be published. 18. 3. A list of top frequently asked Control System interview questions and answers are given below.. 1) What is meant by System? 22. This site uses Akismet to reduce spam. To collect data for future analysis; To validate an engineer design. The bast sets are used for calibrating others. No measurement can be made without errors at all times i.e. To monitor an event or an operation. Define sensitivity. If there is a lag or delay in output signal which may be due to natural inertia of the system, it is known as ‘measurement lag’. Introduction to Slotting Machine : 2. what is accuracy of a measurement? It is the actual magnitude of the input signal to a measuring system which may be approximated but never truly be determined. What are slip gauges? Measurements of Surface roughness, Using Tally Surf/Mechanical Comparator 7. G 2. Resolution is defined as the smallest increment of input signal that a measuring system is capable of displaying or Measurement resolution which is the smallest change in the underlying physical quantity that produces a response in the measurement. Cempalavras Pt. ans. ∗ Assurance of accurate of measurements For Example, consider the measurement of a length of a bar. The slotter or slotting machine is also a reciprocating type of machine tool similar to a shaper. ∗ Correct diagnosis of illness (medical reports) Metrology includes all theoretical and practical aspects of measurement. MECHANICAL MEASUREMENTS AND INSTRUMENTATION ,R13 Regulation, B.Tech , JNTUK,OLD Question papers, Previous ,Question , papers, download, R16, R13, R10, R07 13. Tags. What are measurement standards? 13) Draw the functional block diagram of a measurement system. Following are the contents of module 5 – Force, Torque, and Pressure Measurement. Metrology is the process of making extremely precise measurements of the relative positions and orientations of different optical and mechanical components. Name the different types of comparator? Introduction, basic concepts, and principles of Measurement of strain and temperature. They do not require any external source of energy. dictionary com s list of every word of the year. Signal Conditioning a. Instrumentation Amplifier ... control engineering must often consider the control of poorly understood systems such as chemical process systems. 15) What are the methods of measurement? Since oil is a liquid it has the tendency to 'leak' through every gas/slot it finds during movement. It is essential that the procedure and apparatus What is Tolerance? What is metrology? To reduce the cost of inspection & rejections and rework. 33. It is a branch of engineering that is related to industrial application of mechanics and with the tools, machinery and their products. 5. This minimum value defines the threshold of the instrument. 20. 1. How do you define yard? Temperature control during measurement is important because as materials are heated they expand. Define fits. A measurement is a process of comparing a quantity with a standard unit. 29. 40. the output signals have the same phase relationships as that of input signal, the system is said to have good System response. If the dimension is less or greater than the standard, then the difference will be shown on the dial. Comparing of an instrument indicates the closeness with which the scale between two indicated values or results determined a. Improve our careers about this mechanical measurement and control viva questions or Sachin Thorat click on below button: is. To 95 % of its final value of gear tooth profile using gear tooth vernier /Gear tooth 8! Metrology [ 17ME46B ] Search this site components are within the specified dimensions, ee it. 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