Mechanical Engineering Interview questions and answers 1. In circulating fluidised bed combustion (CFBC) system, bed is operated at higher pressure leading to high heat transfer, higher combustion efficiency, and better fuel feed. Ratio of their thickness = (Prandtl number)-1/3. ... "The ability to be innovative is the most important quality for an engineer. Draw a neat sketch of worm and worm wheel, name the partsof the machine and write V.R of the machine Even with a steady demand for engineers that's expected to continue for the foreseeable future according to Bureau of Labor Statistics' projections, it's still important to be well-prepared for your interview since … Disposal of radioactive waste materials and spent fuel is a major and important technology. Convective heat transfer is effected between a solid and fluid by a combination of molecular conduction within the fluid in combination with energy transport resulting from the motion of fluid particles. 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In addition to high-temperature strength, resistance to corrosion is also important. When pressure ratio is greater than critical pressure ratio. 25 best mechanical engineering interview questions and answers pdf free download 1. engine maximum temperature attained is higher than in gas turbine. Why gas turbine power plant needs efficient compressor ? Why rockets using liquid hydrogen have higher specific impulse compared to liquid hydrocarbon ? Fuel flexibility, electrical load following capability, reliability, availability, and maintenance ease. What for Schmidt plot for is used in heat transfer problems ? Manganese is an excellent deoxidizer and sulfur neutralizer, and improves the mechanical properties of steel, notably the ratio of yield strength to tensile strength at normal temperatures. 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Ultimately, reviewal of these interview tips is critical for anyone looking to pursue a career as a mechanical engineer. Irons with carbon present as iron carbide are extremely hard, difficult to machine and are called “white” irons. 35. View factor is dependent upon geometry of the two surfaces exchanging radiation. What is the difference between stalling and surging in rotary compressions ? How the waste radioactive material is disposed off ? The questions will emphasize more on the quality processes and the strategy and these questions will not be asked for Testing. 71. A machine member may have ductile failure under static loading but may fail in brittle fashion when the load is fluctuating. Efficiency ratio. 2. Modulus of resilience is the maximum strain energy stored in a material per unit volume and modulus of rigidity is the ratio of shearing stress to the shearing strain within the elastic limit. Ultimate analysis of coal is elementary analysis. 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Accordingly three methods of disposal are : Enthalpy and entropy are functions of one single parameter. Schmidt plot is a graphical method for determining the temperature at any point in a body at a specified time during the transient heating or cooling period. What do you understand by sulphur print ? Why manholes in vessels are usually elliptical in shape ? 157. Describe transfer machines in brief. Download Ebook Mechanical Quality Engineering Interview Questions And Answers in an emergency. 16. In I.C. What properties need to be considered for applications calling for following requirements : Brass is an alloy of copper with zinc; and bronze is alloy of copper with tin. A plant which initiates, sustains, controls and maintains nuclear fission chain reaction and provides shielding against radioactive radiation is nuclear reactor. BCC (body centred cubic) structure—Molybdenum, FCC (face centred cubic) structure—Aluminium, HCP (hexagonal closed packed) structure—Zinc. Why ? eBook includes PDF, ePub and Kindle version. What are these ? Why ? Zinc is resistant to corrosion but is attacked by acids and alkalies. This phase has a tetragonal crystal structure and contains carbon in supersaturated solid solution. For example, low-alloy ferritic steel such as -1/% Cr, 1% Mo would not be used at metal temperatures above 580°C because of inadequate resistance to corrosion and oxidation over a full service life of 100,000/150,000 hr. 49. engines can be expressed as RAC rating, SAE rating, or DIN rating. 185. For which parts the Wahl factor and Lewis form factor used ? If a material exhibits same mechanical properties regardless of loading direction, it is isotropic, e.g., homogeneous cast materials. For ductile materials, theories of failure used are maximum shear stress theory, and maximum energy of distortion theory; while for brittle materials, theory of maximum principal stress, and maximum strain are used. (i) rigidity Isothermal process. Download Ebook Mechanical Quality Engineering Interview Questions And Answers in an emergency. Quality Engineers monitor and test the quality of an organization's processes and products, identify and correct shortfalls, and implement control systems for quality assurance. Copper. Dislocation refers to a break in the continuity of the lattice. The maximum power is consumed at about 70% of maximum flow in case’of fan with backward blades. What is endurance limit and what is its value for steel ? Download 164 Mechanical Engineering Interview Questions PDF Guide. Why thermal efficiency of I.C. 136. What are orthotropic materials? This is called enrichment and is accomplished in an enrichment plant. Scavenging is process of flushing out burnt gases from engine cylinder by introducing fresh air in the cylinder before exhaust stroke ends. Supercharging is the process of supplying higher mass of air by compressing the atmospheric air. Explain the difference between ferrite, austenite and graphite ? Define buckling factor. engines is much higher compared to gas turbine. Under what conditions it approaches isobaric, isothermal, and isometric process ? The maintenance of steady state conditions in a fast fluidised bed requires the continuous recycle of particles removed by the gas stream (circulating bed). Silicon increases the electrical resistivity of steel and decreases hysteresis losses. Read PDF Mechanical Quality Engineering Interview Questions And Answers Mechanical Quality Engineering Interview Questions And Answers If you ally compulsion such a referred mechanical quality engineering interview questions and answers ebook that will come up with the money for you worth, acquire the enormously best seller from us currently from several preferred authors. Execessive hydrogen results in the formation of small fissures often described as hairline cracks or flakes in the steel. 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