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1. Explain the second law of thermodynamics.  The entropy of the universe increases over time and moves towards a maximum value.  2....</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/basic-questions-asked-in-a-mechanical-engineering-interview/" aria-label="View Post: Basic questions asked in a mechanical engineering interview">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Basic questions asked in a mechanical engineering interview","url":"\/\/www.gunkrazy.com\/basic-questions-asked-in-a-mechanical-engineering-interview\/","articleBody":"Basic questions asked in a mechanical engineering interview\r\n1. Explain the second law of thermodynamics.\r\n\r\nThe entropy of the universe increases over time and moves towards a maximum value.\r\n\r\n2. What kinds of pipes are used for steam lines?\r\n\r\nNormally galvanized pipes are not used for steam. Mild steel with screwed or welded fittings are the norm. Pressure and temperature are very important factors to be considered in what type of materials to be used. Steam even at low pressures can be extremely dangerous.\r\n\r\n3. What is the difference between shear center flexural center of twist and elastic center?\r\n\r\nThe shear center is the centroid of a cross-section. The flexural center is the center of twist, which is the point on a beam that you can add a load without torsion. The elastic center is located at the center of gravity. If the object is homogeneous and symmetrical in both directions of the cross-section then they are all equivalent.\r\n\r\n4. What is ferrite?\r\n\r\nMagnetic iron rock\r\n\r\n5. What is the difference between projectile motion and a rocket motion?\r\n\r\nA projectile has no motor\/rocket on it, so all of its momentum is given to it as it is launched. An example of a projectile would be pen that you throw across a room.\r\nA rocket or missile does have a motor\/rocket on it so it can accelerate itself while moving and so resist other forces such as gravity.\r\n\r\n6. What is a cotter joint?\r\n\r\nThese types of joints are used to connect two rods, which are under compressive or tensile stress. The ends of the rods are in the manner of a socket and shaft that fit together and the cotter is driven into a slot that is common to both pieces drawing them tightly together. The tensile strength of the steel is proportionate to the strength needed to offset the stress on the material divided by the number of joints employed.\r\n\r\ncottor joint\r\n\r\n7. What is the alloy of tin and lead?\r\n\r\nA tin and lead alloy is commonly called solder. Usually solder is a wire with a rosin core used for soldering. The rosin core acts as a flux.\r\n\r\n8. What does F.O.F. stand for in piping design?\r\n\r\nFOF stands for Face of Flange. A flange has either of the two types of faces:\r\na) Raised face\r\nb) Flat face\r\nThe F.O.F is used to know the accurate dimension of the flange in order to avoid the minute errors in measurement in case of vertical or horizontal pipelines.\r\n\r\n9. Explain Otto cycle.\r\n\r\nOtto cycle can be explained by a pressure volume relationship diagram. It shows the functioning cycle of a four stroke engine. The cycle starts with an intake stroke, closing the intake and moving to the compression stroke, starting of combustion, power stroke, heat exchange stroke where heat is rejected and the exhaust stroke. It was designed by Nicolas Otto, a German engineer\r\n\r\n10. What is gear ratio?\r\n\r\nIt is the ratio of the number of revolutions of the pinion gear to one revolution of the idler gear.\r\n\r\n11. What is annealing?\r\n\r\nIt is a process of heating a material above the re-crystallization temperature and cooling after a specific time interval. This increases the hardness and strength if the material.\r\n\r\n12. What is ductile-brittle transition temperature?\r\n\r\nIt is the temperature below which the tendency of a material to fracture increases rather than forming. Below this temperature the material loses its ductility. It is also called Nil Ductility Temperature.\r\n\r\n13. What is a uniformly distributed load?\r\n\r\nA UDL or uniformly distributed load is a load, which is spread over a beam in such a way that each unit length is loaded to the same extent.\r\n\r\n14. What are the differences between pneumatics and hydraulics?\r\n\r\na) Working fluid: Pneumatics use air, Hydraulics use Oil\r\nb) Power: Pneumatic power less than hydraulic power\r\nc) Size: P components are smaller than H components\r\nd) Leakage: Leaks in hydraulics cause fluid to be sticking around the components. In pneumatics, air is leaked into the atmosphere.\r\ne) Pneumatics obtain power from an air compressor while hydraulics require a pump\r\nf) Air is compressible, hydraulic oil is not\r\n\r\n15. What is enthalpy?\r\n\r\nEnthalpy is the heat content of a chemical system.\r\n\r\n16. What is a positive displacement pump?\r\n\r\nA positive displacement pump causes a liquid or gas to move by trapping a fixed amount of fluid or gas and then forcing (displacing) that trapped volume into the discharge pipe. Positive displacement pumps can be further classified as either rotary-type (for example the rotary vane) or lobe pumps similar to oil pumps used in car engines. These pumps give a non-pulsating output or displacement unlike the reciprocating pumps. Hence, they are called positive displacement pumps.\r\n\r\n17. Why would you use hydraulics rather than pneumatics?\r\n\r\nHydraulics is suitable for higher forces &amp; precise motion than pneumatics. This is because hydraulic systems generally run at significantly higher pressures than pneumatics systems. Movements are more precise (repeatable) because hydraulics uses an incompressible liquid to transfer power whilst pneumatics uses gases.\r\nPneumatic systems have some advantages too. They are usually significantly cheaper than hydraulic systems, can move faster (gas much less viscous than oil) and do not leak oil if they develop a leak.\r\n\r\n18. What is isometric drawing?\r\n\r\nIt is a 3-D drawing used by draftsmen, architects etc\r\n\r\n19. What are the advantages of gear drive?\r\n\r\nIn general, gear drive is useful for power transmission between two shafts, which are near to each other (at most at 1m distance). In addition, it has maximum efficiency while transmitting power. It is durable compare to other such as belts chain drives etc. You can change the power to speed ratio.\r\nAdvantages: -\r\nIt is used to get various speeds in different load conditions.\r\nIt increases fuel efficiency.\r\nIncreases engine efficiency.\r\nNeed less power input when operated manually.\r\n\r\n20. Which conducts heat faster steel copper or brass?\r\n\r\nCopper conducts heat faster than steel or brass. Any material that is good for conducting heat is also good for electricity in most cases. Wood terrible for transferring heat thus is also insulator for electric.\r\n\r\n21. How pipe flanges are electrically insulated?\r\n\r\nPipe flanges are protected from corrosion by means of electrolysis, with dielectric flanges. The piping system is electrically insulated by what is called a sacrificial anode. A bag of readily corrodible metal is buried in the ground with a wire running from the pipe to the bag so that the sacrificial anode will corrode first. If any electrical current charges the pipe, it also serves as a ground.\r\n\r\n22. What is a Process Flow Diagram?\r\n\r\nA Process Flow Diagram (or System Flow Diagram) shows the relationships between the major components in the system. It also has basic information concerning the material balance for the process.\r\n\r\n23. Where pneumatic system is used?\r\n\r\nAny system needs redundancy in work needs pneumatics, because the compressor of the pneumatic system has periodical operations (intermittent work, not as hydraulic pump). The compressed air could be accumulated in tanks with high pressures and used even if the compressor failed.\r\n\r\n24. Why gas containers are mostly cylindrical in shape?\r\n\r\nThe most efficient shape for withstanding high pressure is a sphere but that would be costly to manufacture. A cylinder with a domed top and a domed bottom (look underneath, the flat base is actually welded around the outside, the bottom of the gas container is actually domed) is a much cheaper shape to manufacture whilst still having good strength to resist the internal gas pressure.\r\n\r\n25. How is martensite structure formed in steel?\r\n\r\nMartensite transformation begins when austenite is cooled below a certain critical temperature, called the matrensite start temperature. As we go below the martensite start temperature, more and more martensite forms and complete transformation occurs only at a temperature called martensire finish temperature. Formation of martensite requires that the austenite phase must be cooled rapidly.\r\n\r\n26. What is an ortographic drawing?\r\n\r\nOrthographic projections are views of a 3D object, showing 3 faces of it. The 3 drawings are aligned so that if the page were folded, it would create part of the shape. It is also called multiview projections.\r\nThe 3 faces of an object consist of its plan view, front view and side view. There are 2 types of orthographic projection, which are 1st angle projection and 3rd angle projection.\r\n\r\n27. What is representative elementary volume?\r\n\r\nSmallest volume over which measurements can be made that will yield a representative of the whole.\r\n\r\n28. Why are LNG pipes curved?\r\n\r\nLNG pipes are curved because LNG is condensed gas (-164 deg cel) so it can expand the pipes that is what engineers designed the LNG pipes are curve type.\r\n\r\n29. What does angular momentum mean?\r\n\r\nAngular momentum is an expression of an objects mass and rotational speed.\r\nMomentum is the velocity of an object times it is mass, or how fast something is moving how much it weigh. Therefore, angular momentum is the objects mass times the angular velocity where angular velocity is how fast something is rotating expressed in terms like revolutions per minute or radians per second or degrees per second.\r\n\r\n30. Can you use motor oil in a hydraulic system?\r\n\r\nHydraulic fluid has to pass a different set of standards than motor oil. Motor oil has tackifiers, lower sulfur content, and other ingredients that could prove harmful to the seals and other components in a hydraulic system. If it is an emergency only should you do it.\r\n\r\n31. What causes white smoke in two stroke locomotive engines?\r\n\r\nThat is the engine running too lean (lack of fuel). This condition will lead to overheating and failure of the engine.\r\n\r\n32. What is the role of nitrogen in welding?\r\n\r\nNitrogen is used to prevent porosity in the welding member by preventing oxygen and air from entering the molten metal during the welding process. Other gases are also used for this purpose such as Argon, Helium, Carbon Dioxide, and the gases given off when the flux burns away during SMAW (stick) welding.\r\n\r\n33. What does Green field project mean?\r\nGreen field projects are those projects, which do not create any environmental nuisance (pollution), follows environmental management system and EIA (environment impact assessment). These projects are usually of big magnitude.\r\n\r\n34. Is it the stress that, produces strain or strain produces stress?\r\n\r\nA Force applied to an object will cause a displacement. Strain is effectively a measure of this displacement (change in length divided by original length).\r\nStress is the Force applied divided by the area it is applied. (E.g. pounds per square inch)\r\nTherefore, to answer the question, the applied force produces both \u0093Stress and Strain\u0094. \u0093Stress and Strain\u0094 are linked together by various material properties such as Poisson's ratio and Young's Modulus.\r\n\r\n35. How does iron ore turn into steel?\r\n\r\nTo make Steel, Iron Ore is refined into iron and all the carbon is burned away using very high heat (Bessemer). A percentage of Carbon (and other trace elements) are added back to make steel. 36. What is knurling?\r\nKnurling is a machining process normally carried our on a centre lathe. The act of Knurling creates a raised criss-cross pattern on a smooth round bar that could be used as a handle or something that requires extra grip.\r\n\r\n37. What is the mechanical advantage of a double pulley?\r\n\r\nIt only takes half the effort to move an object but twice the distance.\r\n\r\n38. What is extrued aluminum?\r\n\r\nExtrusion is the process where a metal or a metal bar is pulled through a mandrel to elongate it and\/or give it a final shape.\r\nExtruded Aluminum is a common form of making small aluminum wire, bars or beams and many varieties of small non-structural, decorative pieces.\r\n\r\n39. What is a Newtonian fluid?\r\n\r\nA Newtonian fluid possesses a linear stress strain relationship curve and it passes through the origin. The fluid properties of a Newtonian fluid do not change when any force acts upon it.\r\n\r\n40. What are the points in the stress strain curve for steel?\r\n\r\nProportional limit, elastic limit or yield point, ultimate stress and stress at failure.","headline":"Basic questions asked in a mechanical engineering interview","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-14","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/cottor-joint-300x135.jpg","height":135,"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 "> <a href="//www.gunkrazy.com/best-career-objectives-for-mechanical-engineers/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/02/career-objectives-mechanical-engg-300x184.jpg')"></div><span class="sr-only">link to Best Career Objectives For Mechanical Engineers</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/best-career-objectives-for-mechanical-engineers/">Best Career Objectives For Mechanical Engineers</a></p></header><div class="excerpt"><p>Best Career Objectives For Mechanical Engineers
Resume is very important if you are looking for a job. CV/Resume captures and communicates your Key skill areas, expertise, key achievements,...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/best-career-objectives-for-mechanical-engineers/" aria-label="View Post: Best Career Objectives For Mechanical Engineers">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Best Career Objectives For Mechanical Engineers","url":"\/\/www.gunkrazy.com\/best-career-objectives-for-mechanical-engineers\/","articleBody":"Best Career Objectives For Mechanical Engineers\r\nResume is very important if you are looking for a job. CV\/Resume captures and communicates your Key skill areas, expertise, key achievements, strengths and most importantly why you are a suitable candidate for the Job.\r\nA good CV show cases your strategic approach and business acumen. It provides proof of your leadership capabilities and your passion to excel. A good resume preparation is so important to present the profile that it can increase the chances of selection by 50%.\r\nWhat is a career objective statement?\r\nAs per the Interview Guys, a resume objective is \u201ca short and targeted statement which clearly highlights your career direction while also positioning you as someone who fits exactly as what the employer is looking for.\u201d\r\nIt\u2019s to mention that there\u2019s a difference between a resume summary and an objective statement. A resume summary mainly highlights past jobs and experience. A\u00a0career objective\u00a0statement has much of a forward-focus and with past experiences, exemplifies or predicts your future performance.\r\nYou should include the proper piece based on what you\u2019re intending to achieve, and who you expect is seeing your resume. A cover letter does more or less the same thing as a resume summary, but can only elaborate with details.\r\nWhy should you learn resume objective writing?\r\nA career objective statement though appears like a small part of a resume, but it sets a positive tone for the entire resume.\r\nIt\u2019s the first thing which someone sees and can create an impression about you.\r\nThere are some mixed opinions if a\u00a0career objective\u00a0statement is important, or necessary, for a resume. The answer is that what your aim to achieve is.\r\nIf you\u2019re applying for multiple positions in a company, then skip this from the resume.If you\u2019re sending a resume in terms of the general interest of work, again, skip it.\r\n\r\n\r\ncareer objectives mechanical engg\r\nIf you are applying for job other than academics then these are the following line you can use as carrier objective-\r\n1- To be a part of an organization where I can fully utilize my skills and make a significant contribution to the success of the employer and at the same time my individual growth.\r\n2-\u00a0 To have a growth oriented and challenging career, where I can contribute my knowledge and skills to the organization and enhance my experience through continuous learning and teamwork.\r\n3- Seeking the role of Mechanical Engineer Fresher where I would be given an opportunity to utilize the theoretical skills, sense of responsibility and efficiency to help the organization grow\r\n4- To obtain a job as Mechanical Engineer in a challenging work environment and utilize my problem solving skills\r\n5- Skilled Mechanical Engineering Graduate seeking a job in a leading organization where my skills in applying theoretical knowledge into practical fields and analytical thinking would aid the organization\r\n6- Looking for the job role of a Mechanical Engineer where I can utilize my skills in analytical modeling, System level designs, simulations and problem solving\r\n7- Seeking a position of CAD developer in the Machine Design department of the XYZ Corporation and use my proficiency in Auto CAD, ANSYS and Adobe Suite to the benefit of the company.","headline":"Best Career Objectives For Mechanical Engineers","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-14","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/career-objectives-mechanical-engg-300x184.jpg","height":184,"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 "> <a href="//www.gunkrazy.com/designspark-mechanical-3d-solid-modeling-cad-software/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/02/Draftsightmechanical-software-300x189.jpg')"></div><span class="sr-only">link to DesignSpark Mechanical &#8211; 3D Solid Modeling CAD Software</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/designspark-mechanical-3d-solid-modeling-cad-software/">DesignSpark Mechanical &#8211; 3D Solid Modeling CAD Software</a></p></header><div class="excerpt"><p>DesignSpark Mechanical - 3D Solid Modeling CAD Software
DesignSpark Mechanical is a free 3D CAD (computer-aided design) solid modeling software  DesignSpark Mechanical enables users to solid model...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/designspark-mechanical-3d-solid-modeling-cad-software/" aria-label="View Post: DesignSpark Mechanical &#8211; 3D Solid Modeling CAD Software">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"DesignSpark Mechanical &#8211; 3D Solid Modeling CAD Software","url":"\/\/www.gunkrazy.com\/designspark-mechanical-3d-solid-modeling-cad-software\/","articleBody":"DesignSpark Mechanical - 3D Solid Modeling CAD Software\r\nDesignSpark Mechanical is a free 3D CAD (computer-aided design) solid modeling software\r\n\r\nDesignSpark Mechanical enables users to solid model in a 3D environment and create files for use with 3D printers. Using the direct modelling approach, it allows for unlimited and frequent design changes using an intuitive set of tools. This free 3D CAD software is offered as a payment free download, but requires a one-time registration with DesignSpark.com to receive the latest community news and product promotions.\r\n\r\nIn addition, DesignSpark Mechanical Version 4.0 is the first free software tool to seamlessly integrate the open-source Ultimaker Cura slicing software. This feature is the result of close collaboration between RS and Ultimaker, a 3D printing company, and enables users to optimise their designs using expert-tested profiles for 3D printers and materials, and to streamline workflow for maximum efficiency.\r\n\r\nOther key features of Version 4.0 include: support for 4K and ultra-HD monitors, switching between multiple graphics-rendering drivers and modes; the ability to export 3D geometry into the DreamWorks open-source OpenVDB file format; and various fixes of minor software bugs. Additionally, the tool now supports 14 new languages.\r\n\r\nAdd-on modules\r\nPaid add-on modules are available and provide functionality for the free 3D CAD DesignSpark Mechanical software, such as full support of two popular 3D file formats (Export and import file type: STEP &amp; IGES) and an associative drawing environment, adding many functions such as cosmetic Threading, GD&amp;T, Annotations and more\r\n\r\nDraftsightmechanical software\r\nRapid prototyping\r\nDesignSpark Mechanical supports the idea of\u00a0Rapid Prototyping\u00a0through\u00a0SpaceClaim's 3D direct modelling methodology using the\u00a0Pull, Move, Fill and Combine\u00a0tools that allow a user to interact with digital 3D objects like modelling with clay, all available in the free 3D CAD version.\r\n\r\nDesignSpark Mechanical is a direct modeling tool as opposed to a parametric one. Basically direct modeling means that you work directly with the geometry you see and each edit direct impacts the underlying objects. It is useful for quick prototyping, but likely won\u2019t be used for the final product. Parametric modeling means that your design maintains the original geometry of each object even after you apply rounding and smoothing. You can define constraints, relations and dependencies to objects so that if you change something it will relatively impact other things. Parametric systems are usually history based, meaning you can go back into your model and adjust something (say the width of a line) and the software will automatically adjust everything that is related to it by constraints that you define. The downside to parametric modeling is that it is generally more complex. Take Blender, a parametric modeler, for example. I would argue that a lot of Blender\u2019s complexity comes from it being a parametric modeling system. FreeCad is also a parametric modeler. It comes close to being a good combination of parametric with a direct modeler\u2019s ease of use\u2026but they aren\u2019t there yet. For example, the design surface isn\u2019t as rich as say 123D Design.\r\n\r\nPros:\u00a0It is the first and maybe the only software which imports SketchUp (*.skp) files. If you're a maker person then this software enables a wide array of electronics components via its \"RS Components\" connection. Actually, the software is launched by them.\r\n\r\nCons:\u00a0Its user interface is a little bit unfamiliar comparing to other well-known CAD softwares.","headline":"DesignSpark Mechanical &#8211; 3D Solid Modeling CAD Software","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-14","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/Draftsightmechanical-software-300x189.jpg","height":189,"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 "> <a href="//www.gunkrazy.com/hand-operated-bench-shearing-machine-mechanical-project/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/02/hand-Operated-bench-shearing-machine-300x131.jpg')"></div><span class="sr-only">link to Hand Operated bench Shearing Machine | Mechanical Project</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/hand-operated-bench-shearing-machine-mechanical-project/">Hand Operated bench Shearing Machine | Mechanical Project</a></p></header><div class="excerpt"><p>Hand Operated bench Shearing Machine | Mechanical Project
Hand operated bench type shearing machines suitable for production operations in all shearable materials including Plastic, fibre, mica,...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/hand-operated-bench-shearing-machine-mechanical-project/" aria-label="View Post: Hand Operated bench Shearing Machine | Mechanical Project">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Hand Operated bench Shearing Machine | Mechanical Project","url":"\/\/www.gunkrazy.com\/hand-operated-bench-shearing-machine-mechanical-project\/","articleBody":"Hand Operated bench Shearing Machine | Mechanical Project\r\nHand operated bench type shearing machines suitable for production operations in all shearable materials including Plastic, fibre, mica, rubber, leather, alluminium, copper, cobalt steel, chrome, molybednium, lead, brass &amp; stainless steel, standard equipments include handle.\r\n\r\nA shearing machine is a versatile hand power tool, which is used to cut through hard metal sheets, cloth, bar or plates of metal or any other material. The shearing machines are either pneumatic, hydraulic or electric powered. The shearing machine blades are made of sturdy high carbon steel. There is a various kind of shearing machine available in the market to use in the metal manufacturing industry:\r\n\r\nAlligator Shear: Alligator shears are used for cutting long metal stock like I-beams, angle iron, and pipe. They are powered by a hydraulic cylinder for efficient performance.\r\n\r\nBench Shear: Bench shears are ideal for cutting rough shapes from medium-sized pieces of sheet metal. Bench shears are bench mounted and can be used for 90-degree angle cut and T-section cutting as well as cutting both round and square bars.\r\n\r\nGuillotine: Guillotine can be mechanical, hydraulic or foot powered. Guillotine is a complete set of shear table, gauging device, work holding device, and upper and lower shears. It is used for high volume production work because of its high-speed performance.\r\n\r\nhand Operated bench shearing machine\r\n\r\nHand Shearing is the cheapest method to rough cutting of sheet metal jobs ,work pieces. hand operated shearing machine is mini project for diploma as well as BE Mechanical students. In this video we will see about hand operated bench shearing machine . this machine is used for cutting rough shapes out of medium-sized pieces of sheet metal, but cannot do delicate work. This Machines are Light weight and easy efficient operation, yet very sturdy in construction. These special features help the operators save a great deal of their energy. The lever which gives mechanical advantage is connected with gear sector . this gear sector is engaged with other gear sector which is fixed with frame . frame is robust made up of casting and M.S. tubes section.\r\n\r\nWatch Animation Working Video :\u00a0\r\n\r\nRead Also :\u00a0\r\n\r\n \tPneumatic Sheet Metal Shearing\/Cutting Machine report\r\n \tELECTROMAGNETIC SHEARING MACHINE MECHANICAL PROJECT\r\n \tFunction Of shearing and Shearing machine Working Principle","headline":"Hand Operated bench Shearing Machine | Mechanical Project","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-14","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/hand-Operated-bench-shearing-machine-300x131.jpg","height":131,"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/basic-concepts-fluid-mechanics-interview-question-and-answers/">Basic Concepts | Fluid Mechanics &#8211; Interview Question and Answers</a></p></header><div class="excerpt"><p>Basic Concepts | Fluid Mechanics - Interview Question and Answers
In this post we will see Basic Concepts of Fluid mechanics interview questions with answers. These Questions are useful for...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/basic-concepts-fluid-mechanics-interview-question-and-answers/" aria-label="View Post: Basic Concepts | Fluid Mechanics &#8211; Interview Question and Answers">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Basic Concepts | Fluid Mechanics &#8211; Interview Question and Answers","url":"\/\/www.gunkrazy.com\/basic-concepts-fluid-mechanics-interview-question-and-answers\/","articleBody":"Basic Concepts | Fluid Mechanics - Interview Question and Answers\r\nIn this post we will see Basic Concepts of Fluid mechanics interview questions with answers. These Questions are useful for interviews, viva , Oral Examination , Objective type technical Questions.\r\n\r\n\u00a01. 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.\u00a0 Define specific weight or weight density.\r\n\r\nSpecific weight or weight density of a fluid is defined as the ratio between the\u00a0weight 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.\u00a0Define specific volume.\r\n\r\nSpecific volume of a fluid is defined as the volume of fluid occupied by an unit wt\u00a0or unit mass of a fluid.\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.\u00a0Define 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\n\r\n5.\u00a0Types of fluids.\r\n\r\nIdeal fluid, Real fluid, Newtonian fluid, Non-Newtonian fluid, Ideal Plastic fluid.\r\n\r\n6.\u00a0Define Surface Tension.\r\n\r\nSurface tension is defined as the tensile force acting on the surface of the liquid\u00a0in contact with a gas or on the surface between two immiscible liquids such that the\u00a0contact surface behaves like a membrane under tension.\r\n\r\nSurface Tension, \u03c3 = Force\/Length (N\/m)\r\n\r\n7.\u00a0Define Vapour Pressure.\r\n\r\nWhen vaporization takes place, the molecules start accumulating over the free\u00a0liquid surface exerting pressure on the liquid surface. This pressure is known as\u00a0Vapour pressure of the liquid.\r\n\r\n8.\u00a0List the types of fluid flow.\r\n\r\nSteady and unsteady flow\r\nUniform and non-uniform flow\r\nLaminar and Turbulent flow\r\nCompressible and incompressible flow\r\nRotational and ir-rotational flow\r\nOne, Two and Three dimensional flow\r\n\r\nRead in Details :Types of Flows in a Pipe \/Fluid Mechanics\r\n\r\n9.\u00a0Define Compressible and incompressible flow\r\n\r\nCompressible flow\r\nThe compressible flow is that type of flow in which the density of the fluid\u00a0changes from point to point i.e. the density is not constant for the fluid. It is\u00a0expressed in kg\/sec.\r\n\u03c1 \u2260 constant\r\n\r\nIncompressible flow\r\nThe incompressible flow is that type of flow in which the density is constant\u00a0for the fluid flow. Liquids are generally incompressible. It is expressed in m3 \/s.\r\n\u03c1 = constant\r\n\r\n10.\u00a0State the assumptions used in deriving Bernoulli\u2019s equation\r\n\r\n \tFlow is steady;\r\n \tFlow is laminar;\r\n \tFlow is irrotational;\r\n \tFlow is incompressible;\r\n \tFluid is ideal.\r\n\r\nRead More :\u00a0Introduction to Bernoulli\u2019s equation and It -Application\r\n\r\nBernoulli equation in terms of pressure\r\n\r\n11.\u00a0Define dimensional analysis.\r\n\r\nDimensional analysis is a mathematical technique which makes use of the study\u00a0of dimensions as an aid to solution of several engineering problems. It plays an\u00a0important role in research work.\r\n\r\n12.\u00a0. Define model and prototype.\r\n\r\nThe small scale replica of an actual structure or the machine is known as its\u00a0Model, while the actual structure or machine is called as its Prototype. Mostly\u00a0models are much smaller than the corresponding prototype.\r\n\r\n13.\u00a0Mention 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\n14.\u00a0State Euler\u2019s model law\r\n\r\nIn a fluid system where supplied pressures are the controlling forces in addition\u00a0to 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\n15.\u00a0What are fluid machines or Hydraulic machines?\r\n\r\nThe machines which use the liquid or gas for the transfer of energy from fluid to\u00a0rotor or from rotor to fluid are known as fluid machines.","headline":"Basic Concepts | Fluid Mechanics &#8211; Interview Question and Answers","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-14","mainEntityOfPage":"False","dateModified":"February 22, 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/best-furniture-design-software-free-online-open-source/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/02/sketchup-300x153.jpg')"></div><span class="sr-only">link to Best furniture design software | Free online ,Open Source</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/best-furniture-design-software-free-online-open-source/">Best furniture design software | Free online ,Open Source</a></p></header><div class="excerpt"><p>Best furniture design software | Free online ,Open Source
The purpose of this article is to determine, on the basis of selected criteria, the top 5 CAD software for designing furniture. The software...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/best-furniture-design-software-free-online-open-source/" aria-label="View Post: Best furniture design software | Free online ,Open Source">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Best furniture design software | Free online ,Open Source","url":"\/\/www.gunkrazy.com\/best-furniture-design-software-free-online-open-source\/","articleBody":"Best furniture design software | Free online ,Open Source\r\nThe purpose of this article is to determine, on the basis of selected criteria, the top 5 CAD software for designing furniture. The software selection criteria include\r\n\r\n(a) Ability to perform design tasks, (b) Ease of use, (c) Difficulty and time required for the learning curve, and (d) Cost.\r\n\r\nThe reasons for using these criteria to select the top furniture design software are detailed in this article.\r\n1 SketchUp Free\r\nBy now, SketchUp has become a 3D CAD classic. What strikes first-time users of SketchUp at once is the neat, and tidy interface. There are not too many buttons that can boggle beginners learning this free online CAD software tool. Thanks to the intuitive tools that allow navigating, and sculpting accurately in the 3D view, it is possible to create simple 3D printable models from scratch within the first few hours of learning.\r\n\r\nThe free online CAD software tool also includes drawing layout functionality, and allows surface rendering in a variety of \u201cstyles.\u201d SketchUp comes with its exchange repository integrated into the program itself: 3D Warehouse \u2013 a library where approximately 2.2 million SketchUp models can be downloaded directly into the program.\r\n\r\n sketchup\r\n\r\nUsers of the Premium version of SketchUp (available for Windows and macOS) are able to add new features to the program by installing extension \u2013 many of them free of charge \u2013 there is virtually no limit to its potential capabilities. Also, the support of this free online CAD software tool for 3D printing is already impressive and growing every minute.\r\n2.\u00a0 CAD Pro\r\nCAD Pro\u00ae drafting software lets you design, visualize, and document your furniture design ideas clearly and efficiently.\r\n\r\nCAD Pro offers a full set of drafting software features that will allow you to design any type of blueprints for modern furniture design.\r\n\r\nCAD Pro provides you the necessary design tools to create fine furniture design for your bedroom, dining room, home office and living room.\r\n\r\nDesign and create comfortable quality furniture designs and furniture blueprints with CAD Pros\u2019 design tools. CAD Pro allows you to start with a blank canvas, upon which you can apply the best of your prior experiences in the world of fine furniture designs.\r\n\r\nCAD Pro is excellent for preparing very detailed computer aided design projects such as; furniture designs, furniture blueprints or any type of computer-aided design. Computer \u2013Aided Design Software is a computer graphic language that is used to communicate ideas, furniture drawings, furniture plans and furniture blueprints from the creative design stage through production. Computer aided design is the best way to produce your next furniture designs.\r\n3.\u00a0 SolidWorks\r\nSolidWorks is a very versatile furniture design software that you can use for living rooms, dining rooms, bedrooms and offices. The CAD models support a wide variety of materials, including stainless steel furniture, wooden furniture, as well as custom-design furniture.\r\n\r\nYou can use this tool to design virtually any type of furniture components, including desks, chairs, tables, office panels, and customize them according to your needs.\r\n\r\nIf you want to see the whole picture, you can also add metal doors, wooden doors, windows and shutters to get a detailed view on how the room will look like once you add the finishing touches.\r\n\r\nSolidWorks supports 3D modeling and simulation for cabinets, countertops, cabinet hardware, stairs and rails, knobs, hinges, stops, etc. This powerful furniture design software will help you unleash your imagination and design the perfect house.\r\n4.\u00a0 SketchList 3D\r\nIf you\u2019re a fan of wooden furniture or work wood professionally, then this is the perfect furniture design software for you. SketchList 3D simplifies the time consuming and repetitive woodworking design tasks, allowing you to work everywhere, in the shop or at your client\u2019s home.\r\n\r\nThe solid 3D sketches allow you to mark even the tiniest details and quickly modify ten if something looks out of proportion. The virtual boards also let you see how the elements of your design go together.\r\n\r\nOnce you\u2019re satisfied with the end result, you can use Adobe 3D PDF to send your sketch to your clients so that they can see the \u2018before\u2019 version of your work.\r\n5. PRO100\u00a0\r\nPRO100 is a professional software for furniture and interior design. This tool will allow you to design the interior of kitchens, bathrooms and living rooms faster and more efficiently.\r\n\r\nOne of the main strong point of this tool is the quality of visualisation. The crystal-clear detailed images that PRO100 renders are very useful, allowing you to spot even the tinniest design details.\r\n\r\nThe latest version of the tool brings even more impressive features to the table:\r\n\r\nDesign export to 3D panoramas (including VR glasses, mobile devices, web sites)\r\nSwap any part, e.g. handles, fittings, drawers\r\nDistribution tool (e.d. for shelves or lights arrangement at equal distances from each other)\r\nExport to *.jpg files\r\n6.\u00a0SketchChair\u00a0\r\nSketchChair is a free, open-source software tool that allows anyone to easily design and build their own digitally fabricated furniture.\r\n\r\nhttp:\/\/www.sketchchair.cc\/\r\n7.\u00a0Cabinet Design Software - SmartDraw\u00a0\r\nSmartDraw's cabinet design software is easy to use and gives you great, professional-looking results. Even if you're using it for the first time.\r\n\r\nStart with the exact cabinet template you need\u2014not just a blank screen. Then simply stamp custom shapes for shelf units, hampers, drawers, and racks on your design. Move, delete, add, and stack units quickly and easily.\r\n\r\n\r\n\r\nMore Resources \/articles\r\nCAD Software | CAD Tutorials\r\nMachine Design Notes , article , Interview Que. and Ans.\r\nMechanical Subjectwise Basic Concept Notes ,Articles\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":"Best furniture design software | Free online ,Open Source","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-13","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/sketchup-300x153.jpg","height":153,"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> <nav class="pagination-wrapper" aria-label="article pagination"> <a class="prev page-numbers" href="?page_num=130">&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=129"><span class="screen-reader-text">Page </span>129</a> <a class="page-numbers" href="?page_num=130"><span class="screen-reader-text">Page </span>130</a> <span aria-current="page" class="page-numbers current"><span class="screen-reader-text">Page </span>131</span> <a class="page-numbers" href="?page_num=132"><span class="screen-reader-text">Page </span>132</a> <a class="page-numbers" href="?page_num=133"><span class="screen-reader-text">Page </span>133</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=132">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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