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A circumferential fin rectangular profile is constructed of Cu and surrounds a tube having a diameter of 1.25 cm. The fin length is 6 mm and its thickness is 0.3 mm. The fin is exposed to a convection environment a 20 0C with h= 55 W/m2.0C base temperature.
Q. State and briefly explain the various phenomena useful for electromechanical energy conversion in rotating machines. Sol. In the rotating machines there are mainly tw
Determine the percentage savings in the material: A hollow shaft containing an inside diameter 0.5 times the outer diameter is to replace the solid shaft of the similar materi
Q. For an electromagnetic system, show that the energy stored in a magnetic field is equal to the area enclosed b/w magnetization curves for open and closed position of the armat
Copper-Beryllium Alloys Copper-beryllium alloys comprise between 0.6 to 2% Be and 0.2 to 2.5% Cobalt. Such alloys can be precipitation hardened and cold worked to improve a te
Q. Explain Fundamental of metal casting? (1)Melting the material (2)Allowing the molten metal to cool and solidify in the mould "A plane where the castings are made is ca
Gas Porosity Porosity is the presence of gas pockets or voids caused by the entrapment of gas evolved during weld metal solidification. This Porosity is caused due to im
For the normal force in Figure to have the same magnitude at all points on the vertical track, the stunt driver must adjust the speed to be different at different points. Suppose,
Q. Scope of pipeline systems? This specification covers the specific materials, surface preparation, method of application, quality assurance, and repair necessary for the appl
Find out Deflection under the load: A beam of span 4 m is subject to a point load of 20 kN at 1 m from the left support and a Udl of 10 kN/m over a length of 2 m from the righ
Refractoriness The capability of a material to withstand the action of heat devoid of appreciable deformation of softening is submitted to as refractoriness. Such property is m
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