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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.
Write down short notes on : (i) Dynamometer and Brakes. (ii) Transmission Dynamometer and Absorption Dynamometer. (iii) Epicyclic Gear Train Dynamometers.
work is path function not a state function
Question. In the system shown below, the force exerted by the free jet issuing from the sharp-edged circular nozzle and impinging on the small circular plate is just su±cient to k
Separator: Separator works as insulator between positive and negative plates. These separators are placed between each pair of plates.
A centrifugal clutch is to be prepared to transmit 15 KW at 900 r.p.m. The shoes are four in number. The speed at which the engagement begins is 3/4 th of the running speed. The in
Find out the smallest force: A block weighing 800 N is raised up with the help of two 6o wedges B and C of negligible weights as illustrated in Figure. If the coefficient of s
Brazing is a technique of joining two similar of dissimilar metal pieces together by heating the surfaces and by using a non-ferrous filler metal having its melting point above 42
how to solve bending moment equation
If no leak found in the above listed area remove flywheel: Remove fly wheel and check weather oil leak is from the seal or "o" ring.
Q. Design Transfer Facilities in plant? Transfer facilities (e.g. pumps, piping, and conveyers) must be arranged so that no leaks can escape the confines of the bund / dike, an
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