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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.
bendind moment equation
Differences between torque and torsion: Give differences between torque and torsion. List a few examples of torsion in the engineering practice. Sol.: When structural or
importance of process planning system
The drawbacks of WFM technique have been overcome Domain While no representation can describe all possible solids, a representation should be able to represent a useful se
Hodgkin-Huxley Fast Subsystem 1. Explain why replacing the extracellular Na + with choline has little effect on the resting potential of an axon. Calculate the new resting po
a)What are methods used in rating for time study. Illustrate them. b) Write down principles of motion economy.
The different advantages of alloy steel are as: (a) Higher strength, toughness and hardness upon surface and over bigger cross-section. (b) Better harden-ability and retentio
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Laser-induced breakdown spectroscopy (LIBS) is a type of spectroscopy that uses plasma generated by a laser pulse. A schematic of a LIBS system is shown in the figure. The laser is
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