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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.
Carnot vapour Cycle: It is convenient to analyze the performance of steam power plants by means of idealized cycles that are theoretical approximations of real cycles. The Car
how many types of kinematics
You are required to formulate the loading and boundary conditions using the FE code and evaluate the stress distribution and end deflection of the beam using the ABAQUS code and vi
What is Wire-frame Wire-frame models use the simplest data structures and they are ambiguous. Wire frame is a well-known example that consists of 16 vertices and 32 edges. We
General Construction Procedure Well foundations may be constructed in slipways on barges, or on sand islands. The ones constructed in slipways are launched and towed to their
crowning of pulley
Explain Milling Fixture? A milling fixture is a work holding device which is firmly clamped to the table of milling machine. It holds the work piece in correct position as
Find out the velocity of the bullet: A bullet of weight W 1 = 5 N is fired into a body B 2 of weight W 2 = 45 N suspended by a string of length L = 1 metres. Because of i
Mollier diagram: Mollier diagram is chart drawn between enthalpy H (on ordinate) and entropy or S (on abscissa). It is also called as H-diagram. It depicts properties of water
Find out the effort required to run this machine: The efficiency of a machine is 75% while an effort of 20 N is required to lift a load of 160 N. Compute the velocity ratio an
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