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class="excerpt"><p>Dimensional Analysis | Fluid Mechanics interview Question
Dimensional Analysis | Fluid Mechanics interview ,viva , Oral  Question and Answers   1. Define dimensional analysis.  Dimensional...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/dimensional-analysis-interview-question-answers/" aria-label="View Post: Dimensional Analysis | Fluid Mechanics interview Question">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Dimensional Analysis | Fluid Mechanics interview Question","url":"\/\/www.gunkrazy.com\/dimensional-analysis-interview-question-answers\/","articleBody":"Dimensional Analysis | Fluid Mechanics interview Question\r\nDimensional Analysis | Fluid Mechanics interview ,viva , Oral\u00a0 Question and Answers\u00a0\r\n\r\n1. Define dimensional analysis.\r\n\r\nDimensional analysis is a mathematical technique which makes use of the study of dimensions as an aid to solution of several engineering problems. It plays an important role in research work.\r\n\r\n2. Write the uses of dimension analysis?\r\n\r\n\u2022 It helps in testing the dimensional homogeneity of any equation of fluid motion.\r\n\u2022 It helps in deriving equations expressed in terms of non-dimensional parameters.\r\n\u2022 It helps in planning model tests and presenting experimental results in a systematic manner.\r\n\r\n3. List the primary and derived quantities.\r\n\r\nPrimary or Fundamental quantities: The various physical quantities used to describe a given phenomenon can be described by a set of quantities which are independent of each other. These quantities are known as fundamental quantities or primary quantities. Mass (M), Length (L), Time (T) and Temperature (\u03b8) are the fundamental quantities.\r\n\r\nSecondary or Derived quantities: All other quantities such as area, volume, velocity, acceleration, energy, power, etc are termed as derived quantities or secondary quantities because they can be expressed by primary quantities.\r\n\r\n4. Write the dimensions for the followings.\r\n\r\nDynamic viscosity (\u03bc) \u2013 ML-1T-2 , Force (F) - MLT-2 , Mass density (\u03c1) \u2013 ML-3 , Power (P) -ML2T-3\r\n\r\n5. Define dimensional homogeneity.\r\n\r\nAn equation is said to be dimensionally homogeneous if the dimensions of the terms on its LHS are same as the dimensions of the terms on its RHS.\r\n\r\n6. Mention the methods available for dimensional analysis.\r\n\r\nRayleigh method, Buckinghum \u03c0 method\r\n\r\n7. State Buckingham\u2019s \u03c0 theorem.\r\n\r\nIt states that \u201cif there are \u2018n\u2019 variables (both independent &amp; dependent variables) in a physical phenomenon and if these variables contain \u2018m\u2019 functional dimensions and are related by a dimensionally homogeneous equation, then the variables are arranged into n-m dimensionless terms. Each term is called \u03c0 term\u201d.\r\n\r\n8. List the repeating variables used in Buckingham \u03c0 theorem.\r\n\r\nGeometrical Properties \u2013 l, d, H, h, etc,\r\nFlow Properties \u2013 v, a, g, \u03c9, Q, etc,\r\nFluid Properties \u2013 \u03c1, \u03bc, \u03b3, etc.\r\n\r\n9. Define model and prototype.\r\n\r\nThe small scale replica of an actual structure or the machine is known as its Model, while the actual structure or machine is called as its Prototype. Mostly models are much smaller than the corresponding prototype.\r\n\r\n10. Write the advantages of model analysis.\r\n\r\n\u2022 Model test are quite economical and convenient.\r\n\u2022 Alterations can be continued until most suitable design is obtained.\r\n\u2022 Modification of prototype based on the model results.\r\n\u2022 The information about the performance of prototype can be obtained well in advance.\r\n\r\n11. List the types of similarities or similitude used in model anlaysis.\r\n\r\nGeometric similarities, Kinematic similarities, Dynamic similarities\r\n\r\n12. Define geometric similarities\r\n\r\nIt exists between the model and prototype if the ratio of corresponding lengths, dimensions in the model and the prototype are equal. Such a ratio is known as \u201cScale Ratio\u201d.\r\n\r\n13. Define kinematic similarities\r\n\r\nIt exists between the model and prototype if the paths of the homogeneous moving particles are geometrically similar and if the ratio of the flow properties is equal.\r\n\r\n14. Define dynamic similarities\r\n\r\nIt exits between model and the prototype which are geometrically and kinematically similar and if the ratio of all forces acting on the model and prototype are equal.\r\n\r\n15. Mention the various forces considered in fluid flow.\r\n\r\nInertia force, Viscous force, Gravity force,\r\nPressure force, Surface Tension force, Elasticity force\r\n\r\n16. Define model law or similarity law.\r\n\r\nThe condition for existence of completely dynamic similarity between a model and its prototype are denoted by equation obtained from dimensionless numbers. The laws on which the models are designed for dynamic similarity are called Model laws or Laws of Similarity.\r\n\r\n17. List the various model laws applied in model analysis.\r\n\r\nReynold\u2019s Model Law, Froude\u2019s Model Law,\r\nEuler\u2019s Model Law, Weber Model Law, Mach Model Law\r\n\r\n20. State Euler\u2019s model law\r\n\r\nIn a fluid system where supplied pressures are the controlling forces in addition to inertia forces and other forces are either entirely absent or in-significant the Euler\u2019s number for both the model and prototype which known as Euler Model Law.\r\n\r\n21. State Weber\u2019s model law\r\n\r\nWhen surface tension effect predominates in addition to inertia force then the dynamic similarity is obtained by equating the Weber\u2019s number for both model and its prototype, which is called as Weber Model Law.\r\n\r\n22. State Mach\u2019s model law\r\n\r\nIf in any phenomenon only the forces resulting from elastic compression are significant in addition to inertia forces and all other forces may be neglected, then the dynamic similarity between model and its prototype may be achieved by equating the Mach\u2019s number for both the systems. This is known Mach Model Law.\r\n\r\n23. Classify the hydraulic models.\r\n\r\nThe hydraulic models are classified as: Undistorted model &amp; Distorted model\r\n\r\n24. Define undistorted model\r\n\r\nAn undistorted model is that which is geometrically similar to its prototype, i.e. the scale ratio for corresponding linear dimensions of the model and its prototype are same.\r\n\r\n25. Define distorted model\r\n\r\nDistorted models are those in which one or more terms of the model are not identical with their counterparts in the prototype.\r\n\r\n26. Define Scale effect\r\n\r\nAn effect in fluid flow that results from changing the scale, but not the shape, of a body around which the flow passes.\r\n\r\n27. List the advantages of distorted model.\r\n\r\n\u2022 The results in steeper water surface slopes and magnification of wave heights in model can be obtained by providing true vertical structure with accuracy.\r\n\u2022 The model size can be reduced to lower down the cast.\r\n\u2022 Sufficient tractate force can be developed to produce bed movement with a small model.\r\n\r\n28. Write the dimensions for the followings.\r\n\r\nQuantities and dimension chart\r\n\r\n\r\n\r\nMore Resources \/articles\r\nFluid Power System - Hydraulic and Pneumatic Notes\r\nTechnical Mechanical Interview Question and Answers\r\nFluid Mechanics - Notes , articles , Interview Que. &amp; Ans\r\nCAD Software | CAD Tutorials\r\nLatest seminar topic index - Report ,PPT Download\r\n\r\n\r\n\r\n&nbsp;","headline":"Dimensional Analysis | Fluid Mechanics interview Question","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-05-09","mainEntityOfPage":"False","dateModified":"February 19, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/05\/Quantities-and-dimension-chart-300x202.jpg","height":202,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal no-thumb"><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/fluid-mechanics-basic-interview-question-and-answers/">Fluid mechanics Basic | Interview Question and Answers</a></p></header><div class="excerpt"><p>Fluid mechanics Basic | Interview Question and Answers
Fluid mechanics Basic | Interview, Viva , oral Question and Answers  Read Also: Basic Concepts | Fluid Mechanics - Interview Question and...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/fluid-mechanics-basic-interview-question-and-answers/" aria-label="View Post: Fluid mechanics Basic | Interview Question and Answers">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Fluid mechanics Basic | Interview Question and Answers","url":"\/\/www.gunkrazy.com\/fluid-mechanics-basic-interview-question-and-answers\/","articleBody":"Fluid mechanics Basic | Interview Question and Answers\r\nFluid mechanics Basic | Interview, Viva , oral Question and Answers\r\n\r\nRead Also:\u00a0Basic Concepts | Fluid Mechanics - Interview Question and Answers\r\n\r\n1. Define density or mass density.\r\n\r\nDensity of a fluid is defined as the ratio of the mass of a fluid to its volume.\r\nDensity, \u03c1 = mass\/volume (Kg\/m3 )\r\n\u03c1water = 1000 Kg\/m3\r\n\r\n2. Define specific weight or weight density.\r\n\r\nSpecific weight or weight density of a fluid is defined as the ratio between the weight of a fluid to its volume.\r\nSpecific weight, \u03b3 = weight\/volume (N\/m3 )\r\n\u03b3 = \u03c1g\r\n\u03b3water = 9810 N\/m3\r\n\r\n3. Define specific volume.\r\n\r\nSpecific volume of a fluid is defined as the volume of fluid occupied by an unit wt or unit mass of a fluid.\r\n\r\nSpecific volume vs = volume\/ wt = 1\/\u03b3 = 1\/\u03c1g ----- for liquids\r\nSpecific volume vs = volume\/ mass = 1\/\u03c1 ----- for gases\r\n\r\n4. Define dynamic viscosity.\r\n\r\nViscosity is defined as the property of fluid which offers resistance to the movement of one layer of fluid over another adjacent layer of the fluid.\r\n\r\n1 N-s\/m2 = 1 Pa-s = 10 Poise\r\n\r\n5. Define Kinematic viscosity.\r\n\r\nIt is defined as the ratio between the dynamic viscosity and density of fluid.\r\n\u03bd = \u03bc\/\u03c1 (m2 \/s)\r\n1 m2\/s = 10000 Stokes (or) 1 stoke = 10-4 m2\/s\r\n\r\n6. Types of fluids.\r\n\r\nIdeal fluid, Real fluid, Newtonian fluid, Non-Newtonian fluid, Ideal Plastic fluid.\r\n\r\nTypes Of Flows -Laminar and Turbulence Flow \u00a0\r\n\r\n7. Define Compressibility.\r\n\r\nIt is defined as the ratio of volumetric strain to compressive stress.\r\n\r\n8. Define Surface Tension.\r\n\r\nSurface tension is defined as the tensile force acting on the surface of the liquid in contact with a gas or on the surface between two immiscible liquids such that the contact surface behaves like a membrane under tension.\r\n\r\nSurface Tension, \u03c3 = Force\/Length (N\/m)\r\n\r\n9. Define Capillarity.\r\n\r\nCapillarity is defined as a phenomenon of rise or fall of a liquid surface in a small tube relative to the adjacent general level of liquid when the tube is held vertically in the liquid. The rise of liquid surface is known as capillary rise while the fall of liquid surface is known as capillary depression.\r\n\r\n10. Define Vapour Pressure.\r\n\r\nWhen vaporization takes place, the molecules start accumulating over the free liquid surface exerting pressure on the liquid surface. This pressure is known as Vapour pressure of the liquid.\r\n\r\n11. Define Control Volume.\r\n\r\nA control volume may be defined as an identified volume fixed in space. The boundaries around the control volume are referred to as control surfaces. An open system is also referred to as a control volume.\r\n\r\n12. List the types of fluid flow.\r\n\r\n \tSteady and unsteady flow\r\n \tUniform and non-uniform flow\r\n \tLaminar and Turbulent flow\r\n \tCompressible and incompressible flow\r\n \tRotational and ir-rotational flow\r\n \tOne, Two and Three dimensional flow\r\n\r\n15. Define Steady and Unsteady flow.\r\n\r\nSteady flow\r\n\r\nFluid flow is said to be steady if at any point in the flowing fluid various characteristics such as velocity, density, pressure,etc do not change with time.\r\n\u2202V\/\u2202t = 0 \u2202p\/\u2202t = 0 \u2202\u03c1\/\u2202t = 0\r\nUnsteady flow\r\n\r\nFluid flow is said to be unsteady if at any point flowing fluid any one or all characteristics which describe the behaviour of the fluid in motion change with time.\r\n\u2202V\/\u2202t \u2260 0 \u2202p\/\u2202t \u2260 0 \u2202\u03c1\/\u2202t \u2260 0\r\n16. Define Uniform and Non-uniform flow.\r\n\r\nUniform flow\r\n\r\nWhen the velocity of flow of fluid does not change both in direction and magnitude from point to point in the flowing fluid for any given instant of time, the flow is said to be uniform.\r\n\u2202V\/\u2202s = 0 \u2202p\/\u2202s = 0 \u2202\u03c1\/\u2202s = 0\r\nNon-uniform flow\r\n\r\nIf the velocity of flow of fluid changes from point to point in the flowing fluid at any instant, the flow is said to be non-uniform flow.\r\n\u2202V\/\u2202s \u2260 0 \u2202p\/\u2202s \u2260 0 \u2202\u03c1\/\u2202s \u2260 0\r\n17. Compare Laminar and Turbulent flow.\r\n\r\nLaminar and Turbulent flow\r\n\r\nA flow is said to be laminar if Reynolds number is less than 2000 for pipe flow. Laminar flow is possible only at low velocities and high viscous fluids. In laminar type of flow, fluid particles move in laminas or layers gliding smoothly over the adjacent layer.\r\n\r\nTurbulent flow\r\n\r\nIn Turbulent flow, the flow is possible at both velocities and low viscous fluid. The flow is said to be turbulent if Reynolds number is greater than 4000 for pipe flow. In Turbulent type of flow fluid, particles move in a zig \u2013 zag manner.\r\n\r\nRead more ;\u00a0Laminar and Turbulent Flows | What is Reynolds Number\r\n\r\n18. Define Compressible and incompressible flow\r\n\r\nCompressible flow\r\n\r\nThe compressible flow is that type of flow in which the density of the fluid changes from point to point i.e. the density is not constant for the fluid. It is expressed in kg\/sec.\r\n\u03c1 \u2260 constant\r\n\r\nIncompressible flow\r\n\r\nThe incompressible flow is that type of flow in which the density is constant for the fluid flow. Liquids are generally incompressible. It is expressed in m3 \/s.\r\n\u03c1 = constant\r\n\r\n19. Define Rotational and Ir-rotational flow.\r\n\r\nRotational flow\r\n\r\nRotational flow is that type of flow in which the fluid particles while flowing along stream lines and also rotate about their own axis.\r\n\r\nIr-rotational flow\r\n\r\nIf the fluid particles are flowing along stream lines and do not rotate about their own axis that type of flow is called as ir-rotational flow.\r\n\r\n22. State the assumptions used in deriving Bernoulli\u2019s equation\r\n\r\n \tFlow is steady; \r\n \tFlow is laminar;\r\n \t Flow is irrotational;\r\n \tFlow is incompressible; \r\n \tFluid is ideal.\r\n\r\n24. List the instruments works on the basis of Bernoulli\u2019s equation.\r\n\r\n \tVenturi meter; \r\n \tOrifice meter; \r\n \tPitot tube.\r\n\r\n\r\n\r\n\r\nMore Resources \/articles\r\nManufacturing Technology Notes , Articles\r\nIC Engine Articles , Notes , Question and Answer\r\nMachine Design Notes , article , Interview Que. and Ans.\r\nLatest seminar topic index - Report ,PPT Download\r\n\r\n\r\n\r\n&nbsp;","headline":"Fluid mechanics Basic | Interview Question and Answers","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-05-09","mainEntityOfPage":"False","dateModified":"February 19, 2020","image":{"@type":"ImageObject","url":"","height":0,"width":0},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal no-thumb"><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/power-flow-temperature-measurement-interview-question-and-answers/">Power , Flow , Temperature Measurement | Interview Question and Answers</a></p></header><div class="excerpt"><p>Power , Flow , Temperature Measurement | Interview Question and Answers
Power , Flow , Temperature Measurement | Interview , VIva , oral Question and Answers  1. What are load cells?  Are...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/power-flow-temperature-measurement-interview-question-and-answers/" aria-label="View Post: Power , Flow , Temperature Measurement | Interview Question and Answers">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Power , Flow , Temperature Measurement | Interview Question and Answers","url":"\/\/www.gunkrazy.com\/power-flow-temperature-measurement-interview-question-and-answers\/","articleBody":"Power , Flow , Temperature Measurement | Interview Question and Answers\r\nPower , Flow , Temperature Measurement | Interview , VIva , oral Question and Answers\r\n\r\n1. What are load cells?\r\n\r\nAre devices for the measurement of force through indirect methods\r\n\r\n2. Give the principle of hot wire anemometer.\r\n\r\nWhen a fluid flows over a heated surface heat is transferred from the surface and so the temperature reduces. The rate of reduction of temperature is related to flow rate.\r\n\r\n3. State any four inferential type of flow meters?\r\n\r\n \tVenturi meter. (Read More ) Use Of Venturimeter for Flow Measurement and its Advantages\r\n \tOrifice meter. ( Read More )\u00a0What is an Orifice Meter -Orifice Application\r\n \tRota meter.\r\n \tPitot tube.\r\n\r\n4. What is the principle involved in fluid expansion thermometer?\r\n\r\nChange in pressure in the bulb is taken as an indication of the temperature.\r\n\r\n5. Mention some instruments used to measure negative pressures.\r\n\r\n \tMcLeod gauge\r\n \tKundsen Gauge.\r\n \tPirani Gauge.\r\n \tIonization Type Gauge.\r\n\r\n6. Name the two types of hot wire anemometer.\r\n\r\n \tConstant Current Type.\r\n \tConstant Temperature Type.\r\n\r\n7. What is an Anemometer?\r\n\r\nAn anemometer is a device for measuring mean and fluctuating velocities in fluid flows. The reduction of temperature of a surface resulting from the heat transferred owing to the fluid flow is related to flow rate.\r\n\r\n8. What is thermocouple?\r\n\r\nWhen two metals are joined together it will create an emf and it is primarily a function of the junction temperature.\r\n\r\nread More :\u00a0Thermocouple how it works | Types , advantages , Application\r\n\r\n9. What is a Kentometer?\r\n\r\nIt is a device for measurement of absolute pressure.\r\n\r\n10. What is thermopile?\r\n\r\nWhen thermocouples are connected in series it is called thermopile.\r\n\r\n11. Write the working principles of hot wire anemometer.\r\n\r\nWhen the fluid flows over heated surface heat is transferred from the surface and so, its temperature reduces. The rate of reduction of temperature is related to floe rate.\r\n\r\n12. What is the use of thermometer and pyormeter?\r\n\r\nThermometer is used to measure the absolute temperatures. The pyrometer is used to measure high temperatures.\r\n\r\n13. Name the instruments used for measurement of torque.\r\n\r\n \tMechanical torsion meter (Stroboscopic method).\r\n \tOptical torsion meter.\r\n \tElectrical torsion meter.\r\n \tStrain gauge torsion meter.\r\n\r\n14. Classify the types of strain gauges.\r\n\r\n \tUnbonded strain gauge.\r\n \tBonded strain gauge.\r\n \tFine wire strain gauge.\r\n \tMetal foil strain gauge.\r\n \tPiezo-resistive strain gauge.\r\n\r\nRead more :\u00a0Strain Gauge | Advantages and Disadvantages , Application\r\n\r\n15. Mention a few materials used in binding of strain gauges.\r\n\r\n \tCeramic cement.\r\n \tEpoxy\r\n \tNitrocellulose.\r\n\r\n16. Mention the types of dynamometers.\r\n\r\n \tAbsorption dynamometer.\r\n \tDriving dynamometer.\r\n \tTransmission dynamometer.\r\n\r\nRead More :\u00a0Dynamometer | Types Of Dynamometer used For Torque measurement\r\n\r\nhydraulic dynamometer\r\n\r\n17. Mention the types of electrical strain gauges.\r\n\r\n \tInductive.\r\n \tCapacitive.\r\n \tPiezo electric.\r\n \tResistance types.\r\n\r\n18. Give any two applications of an ultrasonic flow meter.\r\n\r\n \tMeasurement of flow between the blades of turbines.\r\n \tRemote sensing of wind velocities.\r\n\r\n19. Name any four inferential types of flow meters.\r\n\r\n \tA venturimeter.\r\n \tA orifice meter.\r\n \tA rotometer.\r\n \tA pitot tube.\r\n\r\n20. What is the principle involved in fluid expansion thermometer?\r\n\r\nIn fluid expansion thermometers, the change in pressure in the bulb is taken as an indication of the temperature.\r\n\r\n\r\n\r\nMore Resources \/articles\r\nTechnical Mechanical Interview Question and Answers\r\nMachine Design Notes , article , Interview Que. and Ans.\r\nMechatronics System Notes , article , Interview Que and Ans\r\nMachine Science Notes , article , Interview Que &amp; Ans\r\n\r\n\r\n\r\n&nbsp;","headline":"Power , Flow , Temperature Measurement | Interview Question and Answers","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-05-09","mainEntityOfPage":"False","dateModified":"February 19, 2020","image":{"@type":"ImageObject","url":"","height":0,"width":0},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal "> <a href="//www.gunkrazy.com/screw-gear-surface-finish-measurement-interview-question-and-answers/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/05/screw-thread-measurement-300x205.jpg')"></div><span class="sr-only">link to Screw , Gear , Surface Finish Measurement | Interview Question and Answers</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/screw-gear-surface-finish-measurement-interview-question-and-answers/">Screw , Gear , Surface Finish Measurement | Interview Question and Answers</a></p></header><div class="excerpt"><p>Screw , Gear , Surface Finish Measurement | Interview Question and Answers
Screw , Gear , Surface Finish Measurement | Interview , VIva , oral  Question and Answers  1. Name the various types of...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/screw-gear-surface-finish-measurement-interview-question-and-answers/" aria-label="View Post: Screw , Gear , Surface Finish Measurement | Interview Question and Answers">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Screw , Gear , Surface Finish Measurement | Interview Question and Answers","url":"\/\/www.gunkrazy.com\/screw-gear-surface-finish-measurement-interview-question-and-answers\/","articleBody":"Screw , Gear , Surface Finish Measurement | Interview Question and Answers\r\nScrew , Gear , Surface Finish Measurement | Interview , VIva , oral\u00a0 Question and Answers\r\n\r\n1. Name the various types of pitch errors found in screw?\r\n\r\n(i) Progressive error.\r\n(ii) Drunken error.\r\n(iii) Periodic error.\r\n(iv) Irregular errors.\r\n\r\n2. Name the various methods of measuring the minor diameter of the thread.\r\n\r\n(i) Using taper parallels.\r\n(ii) Using rollers and slip gauges.\r\n\r\n3. Name the various methods used for measuring the major diameter?\r\n\r\n(i) Ordinary micrometer.\r\n(ii) Bench micro meter.\r\n\r\n4. Name the various methods for measuring effective diameter.\r\n\r\n(i) One wire method.\r\n(ii) Two wire method.\r\n(iii) Three wire method.\r\n\r\nscrew thread measurement\r\n\r\n5. Name the various methods for measuring pitch diameter.\r\n\r\n(i) Pitch measuring machine.\r\n(ii) Tool maker.\r\n(iii) Screw pitch gauge.\r\n\r\n6. Name the two corrections are to be applied in the measurement of effective diameter.\r\n\r\n(i) Rake corrections\r\n(ii) Compression correction.\r\n\r\n7. What is best size of wire?\r\n\r\nBest size of wire is a wire of such diameter that it makes contact with the flanks of the thread on the pitch line.\r\n\r\n8. Define. Drunken thread\r\n\r\nThis is one, having erratic pitch, in which the advance Of the helix is irregular in one complete revolution of thread.\r\n\r\n9. What is the effect of flank angle error?\r\n\r\nErrors in the flank cause a virtual increase in the effective diameter of a bolt and decrease in that, of nut.\r\n\r\n10. What are the applications of toolmaker's microscope?\r\n\r\n(i) Linear measurement.\r\n(ii) Measurement of pitch of the screw.\r\n(iii) Measurement of thread angle.\r\n\r\n11. Define: Periodic error.\r\n\r\nThe periodic error repeats itself at equal intervals along the thread.\r\n\r\n12. What are the commonly used forms of gear teeth?\r\n\r\n(1) Involutes.\r\n(2) Cycloidal\r\n\r\n13. What are the types of gears?\r\n\r\n(i) Spur.\r\n(ii) Helical.\r\n(iii) Bevel.\r\n(iv) Worth and Worm wheel.\r\n(v) Rack and pinion.\r\n\r\nRead more :\u00a0Types Of Gears | Material Used For Gears | Application\r\n\r\n14. Define: Module.\r\n\r\nModule= pitch circle diameter\/ number of teeth.\r\n\r\nRead More :\u00a0Practical Significance and Use of Module and Diametrical Pitch\r\n\r\n15. Define: Lead angle.\r\n\r\nIt is the angle between the tangent to the helix and plane perpendicular to the axis of cylinder.\r\n\r\n16. What are the various methods used for measuring the gear tooth thickness?\r\n\r\n(i) Gear tooth Vernier.\r\n(ii) Constant chord method.\r\n(iii) Base tangent method.\r\n(iv) Measurement over pins.\r\n\r\n17. Name four gear errors.\r\n\r\n(i) Pitch error.\r\n(ii) Alignment error.\r\n(iii) Composite error.\r\n(iv) Thickness error.\r\n\r\n18. Name the method used for checking the pitch of the gear.\r\n\r\n(iii) Step by step method.\r\n(iv) Direct angular measurement.\r\n\r\n19. What are the direct angular measurements methods?\r\n\r\n1. Profile checking:\r\na) Optical projection method.\r\nb) Involutes measuring method.\r\n2. Thickness measurement:\r\na) Chordal thickness method.\r\nb) Constance chord method.\r\n\r\n20. Define: constant chord.\r\n\r\nConstant chord is the chord joining those points, or opposite Aces of the tooth.\r\n\r\n22. What are the two methods used in measuring radius of concave surface?\r\n\r\na) Edges are well defined.\r\nb) Edges are rounded up.\r\n\r\n23. What are the factors affecting surface roughness?\r\n\r\na) Vibrations.\r\nb) Material of the work piece.\r\nc) Tool \r\nd) Machining type.\r\n\r\n24. What are the methods used for evaluating the surface finish?\r\n\r\na) Peak to valley height method.\r\nb) The average roughness method.\r\nc) Form factor method.\r\n\r\n25. Define fullness and emptiness in form factor.\r\n\r\n \tDegree of fullness (K)= area of metal \/Area of enveloping rectangle\r\n \tDegree of emptiness = 1 \u2013 K.\r\n\r\n26. What are the methods used for measuring surface roughness?\r\n\r\na) Inspection by comparison\r\nb) Direct instrument measurements.\r\n\r\n27. What are the stylus probe instruments?\r\n\r\na) Profilo meter.\r\nb) Taylor Hobson Talysurf.\r\nc) Tomlinson surface meter.\r\n\r\n28. Define: Straightness of a line in two planes.\r\n\r\nA line is said to be straight over a given length, of the variation of the distance of its points from two planes perpendicular to each other and parallel to the direction of a line remaining within the specified tolerance limits.\r\n\r\n29. Define: Roundness. Name the four measurement of roundness.\r\n\r\nIt is a surface of revolution where all the surfaces intersected 'by any plane perpendicular to a common axis in case of, cylinder and cone.\r\na. Heart square circle.\r\nb. Minimum radial separation circle.\r\nc. Maximum inscribed circle.\r\nd. Minimum circumscribed circle.\r\n\r\n30. Name the devices used for measurement of roundness.\r\n\r\n1. Diametral.\r\n2. Circumferential confining gauge.\r\n3. Rotating on center.\r\n4. V-Block.\r\n5. Three point probe.\r\n6. Accurate spindle.\r\n\r\n31. What is run out?\r\n\r\nRun out. -Total range of reading of a fixed indicate Or with the contact points applied to a Surface rotated, without axial movement, about 3 fixed axis.\r\n\r\n\r\n\r\nMore Resources \/articles\r\nMechanical Subjectwise Basic Concept Notes ,Articles\r\nMeasurement Science and Metrology Notes , Articles\r\nManufacturing Technology Notes , Articles\r\nCAD Software | CAD Tutorials\r\nMechatronics System Notes , article , Interview Que and Ans\r\n\r\n\r\n\r\n&nbsp;","headline":"Screw , Gear , Surface Finish Measurement | Interview Question and Answers","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-05-08","mainEntityOfPage":"False","dateModified":"February 19, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/05\/screw-thread-measurement-300x205.jpg","height":205,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal no-thumb"><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/advanced-metrology-cmm-interview-question-answers/">Advanced Metrology |  Measurement Interview Question and Answers</a></p></header><div class="excerpt"><p>Advanced Metrology | Measurement Interview Question and Answers 
Advanced Metrology | Metrology Interview , Viva, Oral Question and Answers  1. Explain briefly the three important fields of...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/advanced-metrology-cmm-interview-question-answers/" aria-label="View Post: Advanced Metrology |  Measurement Interview Question and Answers">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Advanced Metrology |  Measurement Interview Question and Answers","url":"\/\/www.gunkrazy.com\/advanced-metrology-cmm-interview-question-answers\/","articleBody":"Advanced Metrology | Measurement Interview Question and Answers \r\nAdvanced Metrology | Metrology Interview , Viva, Oral Question and Answers\r\n\r\n1. Explain briefly the three important fields of machine vision system?\r\n\r\nInspection: it is the ability of an automated vision system to recognize well-defined pattern and if these pattern match these stored in the system makes machine vision ideal for inspection of raw materials, parts, assemblies etc. \r\n\r\nPart identification: It is the ability of part recognition provides positive identifications of an object for decision-making purposes. Guidance and Control. Machine vision systems are used to provide sensor feedback for real time guidance.\r\n\r\n2 What is interferometer?\r\n\r\nInterferometer is optical instruments used for measuring flatness and determining the lengths of slip gauges by direct reference to the wavelength of light.\r\n\r\n3. Name the different types of interferometer?\r\n\r\n1) NPL flatness interferometer.\r\n2) Michelson interferometer.\r\n3) Laser interferometer.\r\n4) Zesis gauge block interferometer.\r\n\r\n4.Name the common source of light used for interferometer?\r\n\r\na. Mercury 198.\r\nb. Cad minus.\r\nc. Krypton 86.\r\nd. Helium.\r\ne. Hydrogen.\r\n\r\n5. What is crest and trough?\r\n\r\nThe light is a form of energy being propagated by electromagnetic waves, which is a sine curve. The high point of the wave is called crust and the low Point is called is trough.\r\n\r\n6. What is meant by alignment test on machine tools?\r\n\r\nThe alignment test is carried out to check the grade of manufacturing accuracy of the machine tool.\r\n\r\n7. List the various geometrical checks made on machine tools.\r\n\r\na. Straightness of guide ways and slide ways of machine tool.\r\nb. Flatness of machine tables and slide ways.\r\nc. Parallelism, equidistance and alignment of the slide ways.\r\nd. True running and alignment of shaft and spindle.\r\ne. The pitch error or lead of lead screw.\r\nf. Pitch errors of gears.\r\n\r\n8. What is wavelength?\r\n\r\nThe distance between two crusts or two rough is called the wavelength.\r\n\r\n9. Distinguish between geometrical test and practical test on a machine tool.\r\n\r\nThe alignment test is carried out to check the grade of manufacturing accuracy of the machine tool. Performance test consist of checking the accuracy of the finished component. Alignment test consist of checking the relationship between various machine elements when the machine tool is idle. Performance test consists of preparing the actual test jobs on the machine and checking the accuracy of the jobs produced.\r\n\r\n10. What are the main spindle errors?\r\n\r\na) Out of round.\r\nb) Eccentricity.\r\nc) Radial throws of an axis.\r\nd) Run out.\r\ne) Periodical axial slip.\r\n\r\n11. Write the various tests conducted on any machine tools?\r\n\r\n1. Test for level of installation of machine tool in horizontal and vertical planes.\r\n2. Test for flatness of machine bed and for straightness and parallelism of bed ways on bearing surface.\r\n3. Test for perpendicularity of guide ways to other guide ways.\r\n4. Test for true running of the main spindle and its axial movements.\r\n\r\n12. Why the laser is used in alignment testing?\r\n\r\nThe alignment tests can be carried out over greater distances and to a greater degree of accuracy using laser equipment. Laser equipment produces real straight line, whereas an alignment telescope provides a, imaginary line that cannot be seen in space.\r\n\r\n13. Classify the machine tool test.\r\n\r\nIt can be classified into\r\n1. Static tests.\r\n2. Dynamic tests.\r\n\r\n14. What are the different types of geometrical tests conducted on machine tools?\r\n\r\n1. Straightness.\r\n2. Flatness.\r\n3. Parallelism, equi-distance and coincidence.\r\n\r\n15. What is CMM?\r\n\r\nIt is a three dimensional measurements for various components. These machines have precise movement is x, y, z coordinates which can be easily controlled and measured. Each slide in three directions is equipped with a precision linear measurement transducer which gives digital display and senses positive and negative direction.\r\n\r\nFig.Coordinate Measuring Machine (CMM)\r\n\r\n16. What is the principle of laser?\r\n\r\nThe photon emitted during stimulated emission has the same energy, phase and frequency as the incident photon. This principle states that the photon comes in contact with another atom or molecule in the higher energy level E2 then it will cause the atom to return to ground state energy level E, by releasing another photon. The sequence of triggered identical photon from stimulated at In is known as stimulated emission. This multiplication of photon through stimulated emission' leads to coherent, powerful, monochromatic, collimated beam of light emission. This light emission is called laser.\r\n\r\n17. Define axial length measuring accuracy.\r\n\r\nIt is defined as difference between the references lengths of gauges aligned with a machine axis and the corresponding measurement results from the machine.\r\n\r\n18. Write the types of coordinate measuring machines?\r\n\r\n1. Bridge type.\r\n2. Horizontal bore mill.\r\n3. Vertical bore mill.\r\n4. Spherical coordinate measuring machine.\r\n\r\n19. Explain CNC, CMM briefly.\r\n\r\nA computer numerical control system can be used with CMM to do calculations while measuring complex parts. Error can be stored in memory while doing calculations. For automatic calibration of probe, determination of co-ordinate system, calculation, evaluation and recording etc., special software's are incorporated.\r\n\r\n20. Write some features of CMM software.\r\n\r\nMeasurement of diameter, center distance can be measured as follows:\r\n1. Measurement of plane and spatial curves.\r\n2. Minimize CNC programme.\r\n3. Data communications.\r\n4. Digital input and output command\r\n5. Interface to CAD software.\r\n\r\n21. What are the four basic types of machine, vision system?\r\n\r\n(i) Image formation.\r\n(ii) Processing of image.\r\n(iii) Analyzing the image.\r\n(iv) Interpretation of image.\r\n\r\n22. Write the advantages of machine vision system.\r\n\r\n(i) Reduction of tooling and fixture cash.\r\n(ii) Elimination of need for precise part location.\r\n(i) Integrated automation of dimensional verification\r\n(ii) Defect detection.\r\n\r\n23. Define machine vision.\r\n\r\nMachine vision can be defined as a means of simulating the image recognition and analysis capabilities of the human system with electronic and electromechanical techniques.\r\n\r\n24. Mention the advantages of CMM.\r\n\r\n(i) The inspection rate is increased.\r\n(ii) Accuracy is reduced.\r\n(iii) Operator's error can be minimized. Skill of the operator is reduced.\r\n(iv) Reduction in calculating, recording and set up time.\r\n(v) No need of GO\/NOGO gauges.\r\n(vi) Reduction of scrap and good part rejection.\r\n\r\n25. Mention the disadvantages of CMM.\r\n\r\n(i) The table and probe may not be in perfect alignment.\r\n(ii) The stylus may have run out.\r\n(iii) The stylus moving in z-axis may have some perpendicularity errors.\r\n(iv) Styius while moving in x and y direction may not be square to each other.\r\n(v) There may be errors in digital system.\r\n\r\n26. Mention the application of CMM.\r\n\r\n(i) CMM's to find application in automobile., machine to,,electronics, space and many other large companies.\r\n(ii) These are best suited for the test and inspection Of test equipment, gauges and tools.\r\n(iii) For aircraft and space vehicles of hundred Percent inspections is carried out by using CMM.\r\n(iv) CMM can be used for determining dimensional accuracy of the component.\r\n(v) CMM can also be used for sorting tasks to achieve optimum pacing of components within tolerance limits.\r\n\r\n27. Describe the features of a flexible inspection system.\r\n\r\n(i) A powerful computer serves as a real time processor to handle part dimensional data and as a multi 'programming system to perform such tasks as manufacturing process control.\r\n(ii) The terminal provides interactive communication with personnel Computer where the programmes are stored.\r\n(iii) Input devices microprocessor based gauges and other inspection devices are used in CMM.\r\n\r\n\r\n\r\nMore Resources \/articles\r\nMeasurement Science and Metrology Notes , Articles\r\nLatest seminar topic index - Report ,PPT Download\r\nProduct Ideas , Innovative Machine Ideas Projects\r\nNew Mechanical Projects 2020 ( All Projects Post Index List )\r\n\r\n\r\n\r\n&nbsp;","headline":"Advanced Metrology |  Measurement Interview Question and Answers","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-05-08","mainEntityOfPage":"False","dateModified":"February 19, 2020","image":{"@type":"ImageObject","url":"","height":0,"width":0},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal "> <a href="//www.gunkrazy.com/linear-and-angular-measurement-interview-question-and-answers/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/05/comparator-stands-c10-223x300.jpg')"></div><span class="sr-only">link to Linear and Angular Measurement | Interview Question and Answers</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/linear-and-angular-measurement-interview-question-and-answers/">Linear and Angular Measurement | Interview Question and Answers</a></p></header><div class="excerpt"><p>Linear and Angular Measurement | Metrology Interview Question and Answers
Linear and Angular Measurement | Metrology Interview , Viva, Oral Question and Answers  1. What are the considerations...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/linear-and-angular-measurement-interview-question-and-answers/" aria-label="View Post: Linear and Angular Measurement | Interview Question and Answers">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Linear and Angular Measurement | Interview Question and Answers","url":"\/\/www.gunkrazy.com\/linear-and-angular-measurement-interview-question-and-answers\/","articleBody":"Linear and Angular Measurement | Metrology Interview Question and Answers\r\nLinear and Angular Measurement | Metrology Interview , Viva, Oral Question and Answers\r\n\r\n1. What are the considerations while manufacturing the slip gauges?\r\n\r\nThe following additional operations are carried out to obtain the necessary qualities in slip gauges during manufacture.\r\n\r\n1. First the approximate size of slip gauges is done by preliminary operations.\r\n2. The blocks are hardened and wear resistant by a special heat treatment process.\r\n3. To stabilize the whole life of blocks, seasoning process is done.\r\n4. The approximate required dimension is done by a final grinding process.\r\n\r\n2. How do you calibrate the slip gauges?\r\n\r\nComparators are used to calibrate the slip gauges.\r\n\r\n3. List the various linear measurements?\r\n\r\n(i) Length.\r\n(ii) Heights and\r\n(iii) Thickness.\r\n\r\n4. What are the various types of linear measuring instruments?\r\n\r\nThe various devices used for measuring the linear measurements are\r\ni. Vernier calipers.\r\nii. Micrometers.\r\niii. Slip gauge or gauge blocks.\r\niv. Comparator.\r\n\r\n5.List out any four angular measuring instrument used in metrology.\r\n\r\n(i) Angle gauges.\r\n(ii) Divided scales.\r\n(iii) Sine bar with slip gauges.\r\n(iv) Autocollimator.\r\n(v) Angle dekkor.\r\n\r\n6. Classify the comparator according to the principles used for obtaining magnification.\r\n\r\nThe common types are:\r\n(i) Mechanical comparators.\r\n(ii) Electrical comparators.\r\n(iii) Optical comparators.\r\n(iv) Pneumatic comparators.\r\n\r\n7. What are comparators?\r\n\r\nComparators are one form of linear measurement device which is quick and more convenient for checking large number of identical dimensions.\r\n\r\nRead More :\u00a0What Is Comparators In metrology | Classification Of Comparators\r\n\r\nComparator stand\r\n\r\n8. How the mechanical comparator works?\r\n\r\nThe method of magnifying small movement of the indicator in all mechanical comparators are effected by means of levers, gear trains or a combination of these elements.\r\n\r\n9. State the best example of a mechanical comparator.\r\n\r\nA dial indicator or dial gauge is used as a mechanical comparator.\r\n\r\n10. Define least count and mention the least count of a mechanical comparator.\r\n\r\nLeast count. - The least value that can be measured by using any measuring instrument known as least count. Least count of a mechanical comparator is 0.0 1 mm.\r\n\r\n11. How the mechanical comparator is used? State with any one example.\r\n\r\nLet us assume that the required height of the component I s 32.5mm. Initially, this height is built up with slip gauges. The slip gauge blocks are placed under the stem of the dial gauge. The pointer in the dial gauge is adjusted to zero. The slip gauges are removed- Now, the component to be checked is introduced under the stem of the dial gauge. If there is any deviation in the height of the component, it will be indicated by the pointer.\r\n\r\n12. State any four advantages of reed type mechanical comparator.\r\n\r\n(i) It is usually robust, compact and easy to handle.\r\n(ii) There is no external supply such as electricity, air required.\r\n(iii) It has very simple mechanism and is cheaper when compared to other types.\r\n(iv) It is suitable for ordinary workshop and also easily portable.\r\n\r\n13. Mention any two disadvantages of reed type mechanical comparator.\r\n\r\n(i) Accuracy of the comparator mainly depends on the accuracy of the rack and pinion arrangement. Any slackness will reduce accuracy.\r\n(ii) It has more moving parts and hence friction is more and accuracy is less.\r\n\r\n14. What are the major types of on electrical comparator?\r\n\r\nAn electrical comparator consists of the following three major parts such as\r\n(i) Transducer.\r\n(ii) Display device as meter.\r\n(iii) Amplifier.\r\n\r\n15. On what basis the transducer works?\r\n\r\nAn iron armature is provided in between two coils held by a leaf spring at one end. The other end is supported against a plunger. The two coils act as two arms of an A.C. wheat stone bridge circuit.\r\n\r\n16. How is the accuracy of an electrical comparator checked?\r\n\r\nTo check the accuracy of a given specimen or work, first a standard specimen is placed under the plunger. After this, the resistance of wheat stone bridge is adjusted that the scale reading shows zero. Then the specimen is removed. Now, the work is introduced under the plunger.\r\n\r\n17. State the working principle of an electronic comparator.\r\n\r\nIn electronic comparator, transducer induction or the principle of application of frequency modulation or radio oscillation is followed.\r\n\r\n18. Mention the important parts of an electronic comparator.\r\n\r\n(i) Transducer.\r\n(ii) Oscillator.\r\n(iii) Amplifier.\r\n(iv) Demodulator.\r\n(v) Meter.\r\n\r\n19. Classify pneumatic comparators.\r\n\r\n(i) Flow or Velocity type.\r\n(ii) Back pressure type.\r\n\r\n20. What are the advantages of electrical and electronic comparator?\r\n\r\n(i) It has less number of moving parts.\r\n(ii) Magnification obtained is very high.\r\n(iii) Two or more magnifications are provided in the same instrument to use various ranges.\r\n(iv) The pointer is made very light so that it 'IS more sensitive to vibration.\r\n\r\n21. What are the disadvantages of electrical and electronic comparator?\r\n\r\n(i) External agency is required to meter for actuation.\r\n(ii) Variation of voltage or frequency may affect the accuracy of output.\r\n(iv) Due to heating coils, the accuracy decreases.\r\n(v) It is more expensive than mechanical comparator.\r\n\r\n22. List the various parts of an optical comparator.\r\n\r\nThe optical comparator consists of the following parts such as \r\n\r\n(i) Pivoted lever.\r\n(ii) Objective lens\r\n(iii) Scale.\r\n(iv) Plunger.\r\n(iv) Table\r\n(v) Base.\r\n\r\n23. What are the advantages of pneumatic comparators?\r\n\r\n(i) The wear of measuring heads is avoided due to absence of direct contact.\r\n(ii) Friction is less due to less number of moving parts.\r\n(iii) Work piece is cleaned by supplying of all during the measurement.\r\n(iv) High magnification is possible.\r\n(v) There is no interference of measuring head and indicating device because the measuring head is kept away from the indicating device.\r\n(vi) It is a suitable method to check taperness of circular bore.\r\n\r\n\r\n\r\nMore Resources \/articles\r\nMachine Design Notes , article , Interview Que. and Ans.\r\nManufacturing Technology Notes , Articles\r\nIC Engine Articles , Notes , Question and Answer\r\nLatest seminar topic index - Report ,PPT Download\r\nNew Mechanical Projects 2020 ( All Projects Post Index List )\r\n\r\n\r\n\r\n&nbsp;","headline":"Linear and Angular Measurement | Interview Question and Answers","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-05-08","mainEntityOfPage":"False","dateModified":"February 19, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/05\/comparator-stands-c10-223x300.jpg","height":300,"width":223},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <nav class="pagination-wrapper" aria-label="article pagination"> <a class="prev page-numbers" href="?page_num=53">&laquo; PREV</a> <a class="page-numbers" href="?page_num=1"><span class="screen-reader-text">Page </span>1</a> <span class="page-numbers dots">&hellip;</span> <a class="page-numbers" href="?page_num=52"><span class="screen-reader-text">Page </span>52</a> <a class="page-numbers" href="?page_num=53"><span class="screen-reader-text">Page </span>53</a> <span aria-current="page" class="page-numbers current"><span class="screen-reader-text">Page </span>54</span> <a class="page-numbers" href="?page_num=55"><span class="screen-reader-text">Page </span>55</a> <a class="page-numbers" href="?page_num=56"><span class="screen-reader-text">Page </span>56</a> <span class="page-numbers dots">&hellip;</span> <a class="page-numbers" href="?page_num=338"><span class="screen-reader-text">Page </span>338</a> <a class="next page-numbers" href="?page_num=55">NEXT &raquo;</a></nav></section></main><aside id="secondary" class="widget-area"><div class="about-wrapper"><h2 class="widget-title" style="background: #d693c6; color: #ff392e">About Us</h2><div class="about-image" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2020/03/Sachin-Thorat-300x300-min.png')"></div><p class="about-copy">LearnMech.Com is a Mechanical Project-oriented platform run by Sachin Thorat who is a B-Tech Graduate in Mechanical Engineering. 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