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A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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Questions within the problem domain of mechanical engineering. Mechanical Engineering can be a broad field; consider choosing more specific tags if they apply.
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Study and applications of electricity, electronics, and electromagnetism. Use this tag when someone who has trained as an electrical engineer is likely to be able to answer your question.
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Questions related to the integrity, design requirements, or analysis of structures.
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Questions relating to fluids at rest (fluid statics) or the forces and effects of fluids in motion (fluid dynamics).
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Use for questions about designing, manufacturing or synthesizing engineered materials or about the properties of specific materials. Questions concerning common construction materials, such as wood, s…
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Questions that fall into the problem domain of civil engineering or one of its sub-disciplines. Questions about buildings or other structures could usually use the "structural-engineering" tag also.
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Questions relating to the various laws of thermodynamics, transformation or movement of a form of energy to another form, primarily but not limited to heating or cooling of a fluid.
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Questions about the models and theories of control engineering and the application of control theory to design systems with desired behaviors.
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the determination of the effects of loads on physical structures and their components. Structures subject to this type of analysis include all that must withstand loads, such as…
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Questions relating to the transfer of heat via the mechanism of convection, conduction, or radiation, in forms of systems (or your device) attempting to obtain thermodynamic equilibrium with another s…
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Questions pertaining to pressurized systems and their applications, from containment to system losses to using as a benchmark for measurement.
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for questions within the problem domain of chemical engineering.
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Questions about using applied mechanics to model engineering problems.
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branch of engineering concerned with the analysis of forces and moments on physical systems in static equilibrium.
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For questions related to the alloy steel: Its production, material properties and applications. The carbon content of steel is between 0.002% and 2.1% by weight for plain iron-carbon alloys.
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Measurements, instrumentation, calibration and metrology.
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Questions relating to or the engineering application of a device that must withstand a loading via deflection, stresses, resistance to buckling, or natural frequencies.
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Questions about the theory and applications of structural elements designed to resist bending.
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the primary branch of engineering concerned with the research, design, development, construction, and testing of aircraft and spacecraft.
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for questions about numerical or analytical modeling and simulation of engineered systems.
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For questions about the design, classification and working principle of pumps. A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action.
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Questions about the flow and use of fluids.