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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.
Q. Preliminary layout considerations? This section outlines the key aspects to be considered when preparing preliminary layouts during the evaluate phase. Preliminary layouts a
Calculate the Machining Time and the Material Removal Rate A through hole of 40 mm diameter and 50 mm depth is to be drilled in a mild steel component. The cutting speed can b
applications of parallelogram
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A long cylinder of radius 2 m hinged at point A is used as an automatic gate. When the water level reaches 15 m the gate automatically opens. Determine the magnitude of the net hyd
Complete outer clutch lugs for deep cuts : Visually check for any deep cuts formed on the outer complete clutch lugs.
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why we feel increase in weight when elevator goes up?
write the assumption made in derivetion of shear stress produced in circular shaft subjected to torsion
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