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Q. What do you mean by Thermosetting plastics?
This plastic undergoes a number of chemical changes on heating and cure to infusible and practically insoluble articles. The chemical change is not reversible thermosetting plastics do not soften on reheating and can not be reworked. They rather become harder due to completion of any left-over polymerization reaction. Eventually, at high temperatures, the useful properties of the plastic get destroyed. This is called degradation. The commonest thermosetting plastics are: alkyds, epoxides, polyesters, phenolics and urea.
Location with Respect to Depth The depth below ground level at which the bottom of a foundation structure is located depends on number of factors, the most important of which
Consider the robotic manipulator of Fig. 1, with a Revolute and a Prismatic Joint. Figure 1, shows the side view of the manipulator while figure 2. shows the top view of the manipu
Draw shear force diagrams for the overhanging beam: Draw shear force & bending moment diagrams for the overhanging beam illustrated in Figure Figure Solution
Evaluate the point of contraflexure: An overhanging beam of 15 m span is carrying a consistently distributed load of 1 kN/m over the length of 10 m at a distance 5 m from the
some suitable examples
Thermal Properties Each solid expand on heating and convention on cooling. The thermal expansion of solids is due to basic structure whether atoms occupy mean position on a fi
Determine the net work: Q: 5 m 3 o f air at 2 bar, 27°C is compressed to 6 bar pressure following PV 1.3 =C . It is expanded subsequently adiabatically to 2 bar. C
Dear Sir, I wish to know the equation for finding the resultant of the axial stress and bending stress for beams. Can you please help me. thanx in advance, Krishna.
Gudgeon Pin: It forms the link between the small end of the connecting rod and the piston. It is a small pin as shown in Figure 2.13. Figure : Gudgeon Pin
Describe the basic concept of descriptive interface Descriptive interfaces are the window to other CAD systems, to the master databases or to the manufacturing activities. The
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