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1.      The velocity of fluid particle is Maximum at the center of the pipe section.
2.      Density is defined in terms of...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//m.gunkrazy.com/basic-concepts-of-fluid-mechanics-gate/" aria-label="View Post: Basic concepts of Fluid Mechanics | Gate Mechanical Notes">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Basic concepts of Fluid Mechanics | Gate Mechanical Notes","url":"\/\/m.gunkrazy.com\/basic-concepts-of-fluid-mechanics-gate\/","articleBody":"Basic concepts of Fluid Mechanics | Gate Mechanical Notes\r\n1.\u00a0\u00a0\u00a0\u00a0\u00a0 The velocity of fluid particle is Maximum at the center of the pipe section.\r\n2.\u00a0 \u00a0 \u00a0 Density is defined in terms of viscosity as dynamic viscosity\/kinematic viscosity.\r\n3.\u00a0 \u00a0 \u00a0 The Reynolds number for pipe flow is given VD\u03c1\/\u00b5.\r\n4.\u00a0 \u00a0 \u00a0 SI unit of viscosity is 10 times poise.\r\n5.\u00a0 \u00a0 \u00a0 Kinetic viscosity is not a dimensionless parameter.\r\n6.\u00a0 \u00a0 The upper critical importance Reynolds\u2019s number for pipe flow is of no practical importance to\u00a0\u00a0 designers.\r\n7.\u00a0 \u00a0 \u00a0 A liquid compressed in a cylinder has a volume of 1 liter at 1 MN\/m2 and a volume of 995 cu cm at MN\/m2. The bulk modulus of elasticity is 200 MPa.\r\n8.\u00a0 \u00a0\u00a0 The length of mercury column at a place at an altitude will change with respect to that at ground first slowly and then steeply.\r\n9.\u00a0 \u00a0 The volumetric change of the fluid caused by a resistance is called adhesion.\r\n10.\u00a0\u00a0\u00a0 Property of a fluid whereby its own molecules are attracted is known as cohesion.\r\n11.\u00a0\u00a0 The pressure at a point in a fluid will not be the same in all directions if the fluid is viscous and is in motion.\r\n12.\u00a0 \u00a0 \u00a0Pitot tube can be used to measure the flow of water in a pipe of diameter 3000mm.\r\n13.\u00a0 \u00a0 \u00a0An ideal fluid is one that is frictionless and incompressible.\r\n14.\u00a0 \u00a0 \u00a0Uniform flow takes place when at every point the velocity vector is identical in magnitude and direction for any given instant.\r\n\r\nBasic concepts of Fluid Mechanics\r\n\r\n\r\n15.\u00a0 \u00a0 \u00a0The continuity equation for an ideal fluid flow state that energy is constant everywhere in the fluid.\r\n16.\u00a0 \u00a0 \u00a0Neglecting the forces due to inertia, gravity and frictional resistance, the design of a channel can be made by comparing Froude\u2019s number.\r\n17.\u00a0 \u00a0 \u00a0For smooth turbulent flow the friction factor changes as Nr1\/4.\r\n18.\u00a0 \u00a0 \u00a0In order to avoid vaporization in the pipe line, the pipe line over the ridge is laid in such a way that it is not more than 6.4 m above the hydraulic gradient.\r\n19.\u00a0 \u00a0 \u00a0The continuity equation is applicable to conservation of mass.\r\n20.\u00a0 \u00a0 \u00a0The rise or fall of head \u2018h\u2019 in a capillary tube of diameter \u2018d\u2019 and liquid surface tension \u2018 \u03c3\u2018 and specific weight \u2018w\u2019 is given by 4\u03c3\/wd.\r\n21.\u00a0 \u00a0 \u00a0McLeod gauge used for low pressure measurement operates on the principle of Boyle\u2019s law.\r\n22.\u00a0 \u00a0 \u00a0Mass density of liquid (\u03c1 ) is given by \u03c1 = kg sec2\/m4.\r\n23.\u00a0 \u00a0 \u00a0Running away speed of a Pelton wheel gives no load speed when governor mechanism fails.\r\n24.\u00a0 \u00a0 \u00a0A Kaplan turbine is low head axial flow turbine.\r\n25.\u00a0 \u00a0 \u00a0Vector difference of two velocities is relative velocity.\r\n26.\u00a0 \u00a0 \u00a0A ship whose hull length is 100 m is to travel at 10 m\/sec. For dynamic similarity, at 2 m\/sec velocity a 1:25 model be towed through water.\r\n27.\u00a0 \u00a0 \u00a0For stable equilibrium of floating body its metacentre should lie above the center of gravity.\r\n28.\u00a0 \u00a0 \u00a0Center of pressure on an inclined plane lies below the centroid.\r\n29.\u00a0 \u00a0 \u00a0The line of action of the buoyant force always acts through the centroid of the displaced volume of the\u00a0 fluid.\r\n30.\u00a0 \u00a0 \u00a0An equipotential line is one that has no velocity component tangent to it.\r\n31.\u00a0 \u00a0 \u00a0Hydraulic jump is used to reduce the energy of flow.\r\n32.\u00a0 \u00a0 \u00a0The lowest portion to storage basin from where the water is not drawn, is dead storage.\r\n33.\u00a0 \u00a0 \u00a0The pitot tube is a device used for measurement of velocity.\r\n34.\u00a0 \u00a0 \u00a0Hydrometer is used to fine out specific gravity of liquids.\r\n35.\u00a0 \u00a0 \u00a0Mach number is signification is case of supersonics, as with projectiles and jet propulsion.\r\n36.\u00a0 \u00a0 \u00a0The fluid forces taken in to consideration in the Navier Stokes equation are gravity, pressure and viscosity.\r\n37.\u00a0 \u00a0 \u00a0Rocks having excessive internal stresses, producing spalling, are called stratified rocks.\r\n38.\u00a0 \u00a0 \u00a0Permissible velocity of water flowing through concrete tunnel, is generally 4-5 m\/s.\r\n39.\u00a0 \u00a0 The maximum continuous power available from a hydro-electric plant under the most adverse hydraulic conditions is called firm power.\r\n40.\u00a0 \u00a0 \u00a0The ratio of maximum load to the rated plant capacity is called utilization factor.\r\n41.\u00a0 \u00a0 \u00a0Orifice refers to n opening in hydraulic structure with regulation provision.\r\n42.\u00a0 \u00a0 \u00a0The value of coefficient of discharge in comparison to coefficient of velocity is found to be less.\r\n43.\u00a0 \u00a0 \u00a0Weir refer to an opening having partially full flow.\r\n44.\u00a0 \u00a0 \u00a0The pressure force, in Netwons, on the 15 cm dia head light of an automobile traveling at 25 m\/s will be 6.8.\r\n45.\u00a0 \u00a0 \u00a0Power transmitted through a pipe is maximum when the loss of head due to friction is one-third of the total head supplied.","headline":"Basic concepts of Fluid Mechanics | Gate Mechanical Notes","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/m.gunkrazy.com\/"},"datePublished":"2015-04-15","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/m.gunkrazy.com\/wp-content\/uploads\/2015\/04\/Water_splashes_001-300x225.jpg","height":225,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/m.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="//m.gunkrazy.com/basic-concepts-of-thermal-engineering/" rel="nofollow"><div class="image-container" style="background-image: url('//m.gunkrazy.com/wp-content/uploads/2015/04/thermalengineeringnotes-300x154.jpg')"></div><span class="sr-only">link to Basic concepts of Thermal Engineering | Gate Mechanical Notes</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//m.gunkrazy.com/basic-concepts-of-thermal-engineering/">Basic concepts of Thermal Engineering | Gate Mechanical Notes</a></p></header><div class="excerpt"><p>Basic concepts of Thermal Engineering | Gate Mechanical Notes  The pressure of the gas in terms of its mean kinetic energy per unit volume E is equal to 2E/3 and Kinetic Energy is always...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//m.gunkrazy.com/basic-concepts-of-thermal-engineering/" aria-label="View Post: Basic concepts of Thermal Engineering | Gate Mechanical Notes">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Basic concepts of Thermal Engineering | Gate Mechanical Notes","url":"\/\/m.gunkrazy.com\/basic-concepts-of-thermal-engineering\/","articleBody":"Basic concepts of Thermal Engineering | Gate Mechanical Notes\r\n\r\n \tThe pressure of the gas in terms of its mean kinetic energy per unit volume E is equal to 2E\/3 and Kinetic Energy is always proportional to temperature.\r\n \tThe super heated vapor acts as perfect gas and obeys all gas laws\r\n \tAbsolute zero pressure will occur when there is no molecular momentum\r\n \tNo liquid can exists at absolute zero pressure and absolute pressure can be attained at 0 Kelvin\r\n \tBehavior of gas can be fully determined by four gas laws\r\n \tFor air ratio of specific heats is 1.4\r\n \t\u00a0Mono-atomic gas has highest ratio of specific heat = 1.66As per Joule\u2019s law internal energy is function of temperature.\r\n \tThe same volume of all gases would represents their molecular weights\r\n \tGases have two value of specific heat. One is at constant pressure and one is at constant volume\r\n \tThe molecular weights of all the perfect gases occupy the same\r\n \tvolume under same conditions of pressure and temperature.\r\n \tWork done in free expansion process is always zero\r\n \tWork done for rigid container having gas, is zero\r\n \tHeat and work are not properties of system\r\n \tAbsolute value of internal energy cannot be found but only change in internal energy can be found\r\n \tOn weight basis air contains 23 parts of oxygen\r\n \t\u00a0 Heat and work are path functions\r\n \t\u00a0 N.T.P means Normal Temperature Pressure\r\n \tChange in the enthalpy is the heat supplied during constant pressure\r\n \tChange in the internal energy is the heat supplied during constant volume\r\n \tFor isothermal process, process index is unity\r\n \tThe basis for measuring thermodynamic property of temperature is given by zeroth law of thermodynamics\r\n \tFirst law of thermodynamic gives concepts of internal energy\r\n \tSecond law of thermodynamic gives concepts of entropy\r\n \tThird law of thermodynamic deals with concept of zero entropy at absolute zero temperature of 0 Kelvin.\r\n \tThrottling is the process during which cooling is produced\r\n \t\u00a01 calorie = 4.186 Joule\r\n \t\u00a0Integration of pdv is non flow work\r\n \tOn volume basis air contains 21 parts of oxygen\r\n \tMolecular weight of gas x characteristics gas constant = value of universal gas constant\r\n \tFor a perfect gas, internal energy and enthalpy are functions of temperature only.\r\n\r\n\r\n\r\n\r\nMore Resources \/articles\r\n Automobile Engineering Parts and System Notes , Article\r\n Mechanical Subjectwise Basic Concept Notes ,Articles\r\n New Mechanical Projects 2020 ( All Projects Post Index List )\r\n\r\n\r\n\r\n&nbsp;","headline":"Basic concepts of Thermal Engineering | Gate Mechanical Notes","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/m.gunkrazy.com\/"},"datePublished":"2015-04-15","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/m.gunkrazy.com\/wp-content\/uploads\/2015\/04\/thermalengineeringnotes-300x154.jpg","height":154,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/m.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="//m.gunkrazy.com/classification-of-fluids-basic-of-fluid/" rel="nofollow"><div class="image-container" style="background-image: url('//m.gunkrazy.com/wp-content/uploads/2015/04/20150406_114759257E01257E01-300x225.jpg')"></div><span class="sr-only">link to Classification of fluids | basic of  fluid Mechanics</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//m.gunkrazy.com/classification-of-fluids-basic-of-fluid/">Classification of fluids | basic of  fluid Mechanics</a></p></header><div class="excerpt"><p>Classification of fluids | basic of fluid Mechanics
CLASSIFICATION OF FLUIDS
1) Ideal ﬂuid :  This ﬂuid is incompressible and possesses no viscosity. Such a ﬂuid is only an imaginary...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//m.gunkrazy.com/classification-of-fluids-basic-of-fluid/" aria-label="View Post: Classification of fluids | basic of  fluid Mechanics">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Classification of fluids | basic of  fluid Mechanics","url":"\/\/m.gunkrazy.com\/classification-of-fluids-basic-of-fluid\/","articleBody":"Classification of fluids | basic of fluid Mechanics\r\nCLASSIFICATION OF FLUIDS\r\n1) Ideal \ufb02uid :\r\n\r\nThis \ufb02uid is incompressible and possesses no viscosity. Such a \ufb02uid is only an imaginary \ufb02uid. All existing \ufb02uids have some viscosity.\r\n\r\n\r\n(ii) Real \ufb02uid :\r\n\r\nA \ufb02uid that possesses viscosity is known as a real \ufb02uid. In actual practice, all \ufb02uids are real \ufb02uids.\r\n\r\n\r\n(iii) Newtonian \ufb02uids :\r\n\r\nA real \ufb02uid in which the shear stress is directly proportional to the rate of shear strain (or velocity gradient) is called Newtonian \ufb02uid.\r\n\r\n\r\niv) Non-Newtonian \ufb02uids : \r\n\r\nA real \ufb02uid in which the shear stress is not proportional to the rate of shear strain (or velocity gradient) is called non-Newtonian \ufb02uid.\r\n\r\n\r\nv) Ideal plastic \ufb02uid :\r\n\r\nA \ufb02uid in which the shear stress is more than the yield value and the shear stress is proportional to the rate of shear strain (or velocity gradient) is called ideal plastic fluid.\r\n\r\n\r\nFig. Classification of Fluids\r\n\r\n\r\n\r\nCLASSIFICATION OF FLOWS ON THE BASIS OF MACH NUMBER.\r\n1. Incompressible \ufb02ow-M less than 0.3\r\n\r\n2. Compressible subsonic \ufb02ow-M between 0.3 and 1\r\n\r\n3. Transonic flow-M ranging between values less than 1 and more than 1\r\n\r\n4. Supersonic \ufb02ow-M greater than 1 but less than 5\r\n\r\n5. Hypersonic \ufb02ow - M greater than 5\r\n\r\n\r\n\r\n\r\n\r\n\r\nMore Resources \/articles\r\nFluid Mechanics - Notes , articles , Interview Que. &amp; Ans\r\nRAC \/ HVAC - Articles , Notes , Que and Answers\r\nMechanical Subjectwise Basic Concept Notes ,Articles","headline":"Classification of fluids | basic of  fluid Mechanics","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/m.gunkrazy.com\/"},"datePublished":"2015-04-08","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/m.gunkrazy.com\/wp-content\/uploads\/2015\/04\/20150406_114759257E01257E01-300x225.jpg","height":225,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/m.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="//m.gunkrazy.com/solar-energy-powered-air-conditioner/" rel="nofollow"><div class="image-container" style="background-image: url('//m.gunkrazy.com/wp-content/uploads/2015/04/Solar-panel-air-conditioning-300x235-300x235.jpg')"></div><span class="sr-only">link to Solar Energy powered Air Conditioner: Mechanical Engineering Project</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//m.gunkrazy.com/solar-energy-powered-air-conditioner/">Solar Energy powered Air Conditioner: Mechanical Engineering Project</a></p></header><div class="excerpt"><p>Solar Energy powered Air Conditioner: Mechanical Engineering Project
Description:
With Kerala being one of the most humid places on planet earth; Summer, is the time when you wished you had an Air...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//m.gunkrazy.com/solar-energy-powered-air-conditioner/" aria-label="View Post: Solar Energy powered Air Conditioner: Mechanical Engineering Project">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Solar Energy powered Air Conditioner: Mechanical Engineering Project","url":"\/\/m.gunkrazy.com\/solar-energy-powered-air-conditioner\/","articleBody":"Solar Energy powered Air Conditioner: Mechanical Engineering Project\r\nDescription:\r\nWith Kerala being one of the most humid places on planet earth; Summer, is the time when you wished you had an Air Conditioner. But, you would rather detest the idea because of the staggering electricity bills you would get once you start using the AC. And it would be a miracle if you could use an AC without paying those hefty electricity bills. In that case, it seems a miracle has just happened!\r\n\r\nHow about utilizing the free energy of the sun to power up your AC?\r\n\r\nThe hottest months usually, happens to be also the sunniest. You can use the scorching summer heat to actually remove the heat from your room with the help Photovoltaics (PVs) to power your AC. Photovoltaics are collection of cells which have photovoltaic material that makes use solar radiation to develop direct current electricity.\r\n\r\nFor achieving the best performance the PVs are connected to a solar tracker so as to align themselves towards the sun to receive the maximum amount of solar radiation. The use of a solar tracker would improve the performance of the PVs by whopping 50% in summer.\r\n\r\n\r\n\r\nFig: Solar Energy powered Air Conditioner\r\n\r\n\r\n\r\nThe use of Concentrated Solar power systems (CSP ) further enhances the utilization of solar power by making use of mirrors to concentrate solar energy onto a photovoltaic cell. Since CSP systems are bigger in construction and expensive they are seldom used to generate power for an air conditioner.\r\n\r\nA typical air conditioner consists of the following\r\n\r\n1) Condensing coil\r\n2) Expansion valve\r\n3) Evaporator Coil\r\n4) Compressor\r\n\r\nOnce, the direct current developed by the PVs is fed to the Air Condition unit, you have an Air Conditioner which works on Solar Panels and you can be free from the tension of electricity bills draining your pockets.\r\n\r\nExcess power if developed can be used to power other electrical appliance or sold back to a power grid! Ultimately the success of the system would depend upon the cost effectiveness.\r\n\r\n\r\n\r\n\r\n\r\n\r\nMore Resources \/articles\r\nSolar Energy , Solar Operated Projects\r\nRenewable Energy Sources , Power Generation Projects List - Abstract\r\nNew Mechanical Projects 2020 ( All Projects Post Index List )","headline":"Solar Energy powered Air Conditioner: Mechanical Engineering Project","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/m.gunkrazy.com\/"},"datePublished":"2015-04-04","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/m.gunkrazy.com\/wp-content\/uploads\/2015\/04\/Solar-panel-air-conditioning-300x235-300x235.jpg","height":235,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/m.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="//m.gunkrazy.com/thermodynamics-gate-mechanical-basic/" rel="nofollow"><div class="image-container" style="background-image: url('//m.gunkrazy.com/wp-content/uploads/2015/04/thermodynamics-cat-300.jpg')"></div><span class="sr-only">link to Thermodynamics | Gate Mechanical Basic Concepts</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//m.gunkrazy.com/thermodynamics-gate-mechanical-basic/">Thermodynamics | Gate Mechanical Basic Concepts</a></p></header><div class="excerpt"><p>Thermodynamics | Gate Mechanical Basic Concepts
Thermodynamics is another important topic for gate examination .thermodynamics mainly consists of sub subjects are IC engine ,Refrigeration and Air...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//m.gunkrazy.com/thermodynamics-gate-mechanical-basic/" aria-label="View Post: Thermodynamics | Gate Mechanical Basic Concepts">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Thermodynamics | Gate Mechanical Basic Concepts","url":"\/\/m.gunkrazy.com\/thermodynamics-gate-mechanical-basic\/","articleBody":"Thermodynamics | Gate Mechanical Basic Concepts\r\nThermodynamics is another important topic for gate examination .thermodynamics mainly consists of sub subjects are IC engine ,Refrigeration and Air Conditioning. Some important points are mentioned below:\r\n\r\n\r\n\r\n\r\n\r\n \tIn the polytropic process we have pvn = constant, if the value of n is infinitely large, the process is called constant volume process. \r\n \tThe molecular volume of any perfect gas at 600 +103 N\/m2 and 270c will be 4.17 m3\/kg mol.\r\n \tThe thermodynamic cycle used in a thermal power plant is Rankine.\r\n \tFor the same heat input and same compression ratio efficiency depend mainly on working substance.\r\n \tThe change in enthalpy for small temperature change \u2206T for an ideal gas is given by the relation \u2206H = Cp \u2206T.\r\n \tEntropy, for reversible flow, is given by the relation dS = dqh\/T.\r\n \tThe S.I. unit of pressure is Pascal.\r\n \tSuperheated vapour behaves approximately as a gas.\r\n \tA sterling cycle has two isothermal and two constant volume processes.\r\n \tBrayton cycle has two isentropic and two constant pressure processes.\u00a0 \r\n \tOtto cycle consists of two isentropic and two constant volume processes.\r\n \tDiesel cycle consists of\u00a0 two isotropic, one constant volume one constant pressure processes.\r\n \tEricsson cycle has two isothermals and two constants pressure processes.\r\n \tBrayton cycle cannot be used in reciprocating engines even for same adiabatic compression ratio and work output because large volume of low pressure air cannot be efficiently handled in rotation engines.\r\n \tBrayton cycle is generally used for gas turbine.\r\n \tAntifreeze chemicals are those that lower down the freezing points of liquids.\r\n \tClog point of an oil refer to the temperature at which paraffin and waxes in oil start precipitating.\r\n \tIf value of n is defiantly large in a polytropic pVn = C. Then the process is called constant volume process.\r\n \tA heat exchange process where the product of pressure and volume remains constant is called hyperbolic process.\r\n \tZeroth law of thermodynamics provides the basis for measuring thermodynamic property of\u00a0\u00a0\u00a0\u00a0 temperature.\r\n \t1 watt = 1 Nm\/s.\r\n \tFor a six compression of air set, with the minimum work condition the temperature rise in the cylinders will be the same.\r\n \tIn case of steam engine the cut off ratio is the ratio of piston stroke which the piston has travelled when cut off occurs.\r\n \tThe reason for insulating the pipe is to minimize the heat loss from the surface.\r\n \tUnder ideal conditions isothermal, isobaric, isochoric and adiabatic processes are quasi-static processes.\r\n \tIsentropic flow is reversible adiabatic flow.\r\n \tExhaust gases from a engine possess kinetic energy\r\n \tThe extension and compression of a helical spring is an example of reversible process.\r\n \tAt critical point the latent enthalpy of vaporization is zero.\r\n \tChange in temperature = zero relation is not applicable in a free expansion process.\r\n \tAn ideal engine absorbs heat at a temperature of 1270c and exhausts heat at a temperature of 770c.Its efficiency will be 13%.\r\n \tThe triple point of a substance is the temperature and pressure at which the solid does not melt, the liquid does not boil and the gas does not condense.\r\n\r\n&nbsp;","headline":"Thermodynamics | Gate Mechanical Basic Concepts","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/m.gunkrazy.com\/"},"datePublished":"2015-04-04","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/m.gunkrazy.com\/wp-content\/uploads\/2015\/04\/thermodynamics-cat-300.jpg","height":300,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/m.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="//m.gunkrazy.com/theory-of-machinedynamics-of-machine/" rel="nofollow"><div class="image-container" style="background-image: url('//m.gunkrazy.com/wp-content/uploads/2015/04/theoryofmachinemechanicalbasicconcepts-300x278.jpg')"></div><span class="sr-only">link to Theory of machine/Dynamics of Machine  | Gate Mechanical Basic Concepts</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//m.gunkrazy.com/theory-of-machinedynamics-of-machine/">Theory of machine/Dynamics of Machine  | Gate Mechanical Basic Concepts</a></p></header><div class="excerpt"><p>A kinematics chain needs a minimum of 4 link and 4 turning pairs. 
   If the frequency of oscillation on earth is n then the frequency of oscillation on the moon will be n/√6.
  The biflar...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//m.gunkrazy.com/theory-of-machinedynamics-of-machine/" aria-label="View Post: Theory of machine/Dynamics of Machine  | Gate Mechanical Basic Concepts">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Theory of machine\/Dynamics of Machine  | Gate Mechanical Basic Concepts","url":"\/\/m.gunkrazy.com\/theory-of-machinedynamics-of-machine\/","articleBody":"A kinematics chain needs a minimum of 4 link and 4 turning pairs. \r\n \t\u00a0 If the frequency of oscillation on earth is n then the frequency of oscillation on the moon will be n\/\u221a6.\r\n \t\u00a0The biflar suspension method is used to find out moment of inertia.\r\n \t The total number of instantaneous centers for a mechanism of n link is equal to n(n-1)\/2.\r\n \t In case of an elliptical trammel two pairs turn and two pairs slide.\r\n \t A shaft revolving in a bearing forms a lower pair.\r\n \tFor kinematic chains formed by lower pair the relation between the number of link L and the number of joint J is given by L = 2\/3 (J+2).\r\n \t\u00a0 The mechanism used to enlarge or reduce moments for reproducing drawings to different scales is called pantograph.\r\n \t\u00a0The number of links in a pantograph is to 4.\r\n \tIf a practical of a link has a velocity that changes both in magnitude and direction at any instant, then it must have two components of acceleration e.g., centripetal. And tangential.\r\n \tThe Klein\u2019s method of construction for reciprocating engine mechanism utilities a quadrilateral similar to the diagram of mechanism for reciprocating engine.\r\n \t . In elliptical trammels have two pairs turning and two pairs sliding. \r\n \t\r\n\r\nTheory of machine\/Dynamics of Machine\r\n \tWhen a ship travel in a sea, the effect of the pitching is more dangerous.\r\n \t If \u0444 is angle of friction, the limiting value of tan \u0444 will be \u00b5.\r\n \tMultiple collars are provided on a flat collar pivot bearing to distribute the axial load due to limiting bearing pressure on a collar.\r\n \t \u00a0 Slip in belt drive is different between the linear speed of the rim of pulley and the belt on it.\r\n \t \u00a0 In case of flat belt drive the length of belt in case of gross belts depends on the sum of the diameters of pulleys.\r\n \t A pantograph is a mechanism having lower pairs.\r\n \t Kinematic pairs are those pairs that have two elements that allow relative motion.\r\n \t\u00a0 A cam with a roller follower would constitute higher pair.\r\n \t \u00a0 Peaucellier mechanism has eight links.\r\n \t \u00a0 Hart mechanism has six links.\r\n \t For a kinematic chain to be considered as mechanism one link should be fixed.\r\n \t The cam angle is the angle of rotation of the cam for a definite displacement of the follower.\r\n \t Klein\u2019s construction is used to find out acceleration of various parts.\r\n \t For a stable governor there is one radius of the governor weight for each equilibrium speed.\r\n \tIn case of a governor isochronous is only one equilibrium which is constant for all radii of\u00a0\u00a0 rotation of the bells within the working range.\r\n \t Module can be expressed in mm.\r\n \t The bipolar suspension method I used to find out moment of inertia.\r\n \t Instantaneous centre of rotation of a link in a four bar mechanism lies on a point obtained by intersection of extending adjoining links.\r\n \t A reverted gear train is one in which the first and last gear are on the same shaft.\r\n \t In case of spur gears the flank of the tooth is the part of the tooth surface lying below the pitch surface.\r\n \tIn case of cross helical worm the axes of two shafts are non parallel-non-interesting.\r\n \t In case of gears the addendum is given by one module.\r\n \tGears for watches are generally manufactured by stamping.\r\n \t A cam where in the follower reciprocates or oscillates in plane parallel to the axis of the cam is called cylindrical cam.\r\n \t Rope break Dynamometers uses no lubricant.\r\n \t Tesla fluid friction dynameters used for power measurement when the speed is high and the viscous force is small.\r\n \tHydraulic Dynamometers is widely used for absorption of wide range power at wide range of speed\r\n \t\u00a0The secondary disturbing force because of inertia of reciprocating mass is given by W\/g \u03c92 r\/n cos \u03b8.\u00a0\r\n \tIn a balancing machine the units for unbalance measurements are gm-cm.\r\n \t In a hartnell governor if the stiffness of spring is increased the governor will become less sensitive.\r\n \t The supply of working fluid to the engine to suit the load conditions can be controlled by governor.\r\n \t The governor used in gramophone is of pickening type.\r\n \t A porter governor could be classified as dead weight type governor.\r\n \t The function of a governor is to adjust variation of speed by varying the input to the engine.\r\n \t If D and T be the pitch circle diameter and no. of teeth of a gear, then its circular pitch p = \u03c0 D\/T.\r\n \t If D1 and T1 be the diameter and no. of teeth of gear 1 and D2 and T2 the corresponding value of other gear in mesh, then ratio N1\/N2, will be equal to D2\/D1.\r\n \t A scott-russel mechanism is made up of sliding and turning pairs.\r\n \t Ackerman steering gear is made up of turning pairs.\r\n \tA sliding crank chain is made up of three turning and one sliding pairs.\r\n \t A motor car takes a bend of certain radius in right hand direction when moving at some speed. If engine rotates in a clockwise direct when viewed from front, then because of centrifugal force reaction on outside wheel is increased and on inside wheels decreased.\r\n \t If \u03b4 be the static deflection of shaft under the gravity load, then natural frequency of the system in case of the longitudinal and transverse vibration is equal to 1\/2 \u03c0\u00a0\u00a0 \u221ag\/\u03b4.\r\n \t Cold working increased the fatigue strength.\r\n \t Coaxing is the procedure of increasing fatigue limit by overstressing the metal by successively increasing loadings.\r\n \t The notch angle of the Izod impact test specimen is 450.\r\n \t In vicker\u2019s hardness testing, the pyramid indentor apex is 400.","headline":"Theory of machine\/Dynamics of Machine  | Gate Mechanical Basic Concepts","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/m.gunkrazy.com\/"},"datePublished":"2015-04-04","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/m.gunkrazy.com\/wp-content\/uploads\/2015\/04\/theoryofmachinemechanicalbasicconcepts-300x278.jpg","height":278,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/m.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=323">&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=322"><span class="screen-reader-text">Page </span>322</a> <a class="page-numbers" href="?page_num=323"><span class="screen-reader-text">Page </span>323</a> <span aria-current="page" class="page-numbers current"><span class="screen-reader-text">Page </span>324</span> <a class="page-numbers" href="?page_num=325"><span class="screen-reader-text">Page </span>325</a> <a class="page-numbers" href="?page_num=326"><span class="screen-reader-text">Page </span>326</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=325">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('//m.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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