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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.
Forces in the members of the truss: Find out the forces in the members AB , BC , AC of the truss shown in the figure drawn adjacent. Sol.: First determin
Q. Ultrasound Bolt Load Monitoring? Ultrasound measurement of bolt stresses, using ‘Bolt Scope', should be used on: • All bolts tightened by tensioning. • All bolts in hy
Windsocks shall be installed at plant facilities handling flammable gases, volatile liquids or toxic materials and also at helipads (may require lighting if night flights are inten
If the expression is quasi-static, determine Q, ΔU and W for the process. In another process the same system expands according to the similar pressure- volume relationship and f
What can a valve do? It can prevent flow (on/off), allow variable control of the flow and provide a safe working environment. What sort of questions should we be asking when selec
Four diametrically opposed in vessels up to pilot scale. More applied in production vessels. Thickness typically 0.1 - 0.05 tank diameter. Baffle height is dependent on the gas
Determine weight of body and coefficient of the friction: For ce of 200N is needed just to move a certain body up an inclined plane of angle 15°, the force is parallel to th
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Draw the bending moment diagram and shear force diagram: A cantilever beam of 8 m length is subjected to point loads of 15 kN, 10 kN, 25 kN and 20 kN at distances of 4 m, 2 m,
Ask question #Minimum 100 words accepA rope of negligible mass is stretched horizontally between two supports that are 3.44 m apart.When an object of weight 3160 N is hung at the c
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