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Control Surface and Flow Work - thermodynamics:
Control Surface: A control system has control volume that is separated from its surrounding by real or imaginary control surface that is fixed in shape, position and orientation. Matter can flow continually in and out of control Volume and heat and work can cross control surface. This is an example of open system.
Steam Generator: The volume of generator is constant. Water is supplied, and then Heat is supplied and Steam comes out. It is control system as well as an open system.
The flow process can be analyzed as a closed system by applying the concept of control volume. The control surface can be selected and all the energies of system including flow energies can be considered inside system. The changes of state of working substance (mass) is required not be considered during its passage through system.
PE = force × Distance = (p1A1).x.
= p1V1(J)
Now the specific volume of working substance is p1
Fe = p1v1(J/kg).
Sketch stress-strain diagram for Mild Steel in tension and also describe the important points. Also draw stress-strain curve for cast Iron, concrete and for elastic rubber only.
Movement of wire at the signal box: The wire working on railway signal is 5mm in diameter and 300m long. If movement at the signal end is to be 25cm, make calculations for mo
Q. Explain Sand and moulding sands? Sand according to the amount of clayey matter they contain, the moulding sands are classified as: • Silica sand: Up to 20% clay. •
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the component of computer integrated manufacturing with the diagram
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The following data was obtained from an orthogonal cutting test : Rake angle = 20o, Depth of cut = 6 mm Feed rate = 025 mm/rev Chip length before cutting = 29.4 mm Chip
working, p[rinciple, construction, uses, everything
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