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Kelvin Plank Statement:
Sol: It is impossible to construct this type of H.E. that operates on cyclic process and converts all the heat supplied to it into equivalent amount of work. The conclusions stated below can be made from statement
1. No cyclic engine can converts whole heat into equivalent work.
2. There is degradation of energy in a cyclic heat engine as some of the heat has to be degraded or rejected.
Therefore second law of thermodynamics is called as law of degradation of energy. For satisfactory operation of heat engine there should be least 2 heat reservoirs source and sink.
With neat diagram illustrate the cycle of operation of four-stroke spark ignition engine. In what respects four-stroke cycle CI engine differ from that of SI engine ?
Q2.1 Using the stiffness method calculate axial forces and the deflections of the joints of the truss shown in the FIG. The truss was built using 50 mm x 50 mm x 5 mm SHS with E
Adhesives Adhesives are a substance able of holding materials together. A joint is formed among two solids is called adherends with a thin layer of adhesive among them. Mainly
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What is the amount of air is supplied to engine via turbochargers and how their sizes vary from engine to engine ?
Q. Define Current for electrical resistance welding? - With other parameters kept constant, the temperature in resistance welding is regulated by controlling the magnitude a
What is the velocity of the crosshead - crank: In the slider crank mechanism shown in Figure, the crank is rotating clockwise at 120 revolution/minute. What is the velocity of
High Duty Tool and Die Steels: High duty punching tools or dies are made out of a lot of various steels of fairly high alloying contents. High-carbon high-chromium die steel
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Q. Design lay-down areas for plant? Designated lay-down areas are areas specifically positioned to enable equipment maintenance to be carried out. These are normally assigned f
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