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SHIELDING GASES
Shielding gas is directed by the torch to the arc and weld pool to protect the electrode and the molten weld metal from atmospheric contamination.
Argon and helium or mixtures of the two are the most common types of inert gas used for the shielding. Argon hydrogen mixtures are used for special applications.
What is Floating Foundations The settlement of foundations can be reduced if the applied load is compensated by excavation of a basement. This basement may be in the form of
The impeller driveshaft can either be top driven or bottom driven. Again there are advantages of each and the choice often varies with scale of operation: (a) Top driven (labo
the component of computer integrated manufacturing with the diagram
tryton cycle
Those that produce microbial cells e.g.Baker's yeast or mycoprotein. Those that produce microbial enzymes e.g. alpha amylase for starch processing, glucose isomerase for the pro
Q. Why we need paving in design of a plant? Concrete paving should be provided under any equipment where flammable or hazardous liquids may be spilled during routine operation
Chain conveyors consists of overhead mounted endless chain. It is supported from the ceiling and has a fixed path to travel. It saves valuable floor space. The arrangement i
(a) Illustrate all the laws of mechanics? (b) What ate the two limits of limitation on Newtonian mechanic?
how reversed brayton cycle works
1- Explain the rationale of using a small WD to improve resolution. 2- In a tungsten SEM , Why does a high accelerating voltage provide the potential for higher resolution? Why
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