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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.
why G2 is introduced in michelson interferometer tell with proper diagram
CLOSED CIOL HELICAL ,WIRE DAI 10MM AND COMLITE10 TURNS WITH MEAN RADIOUS AND AXIAL LOAD 200N ,C=80KN/MM2.FIND DIFLECTION OF SPRING?
When a Plano-convex lens of large radius of curvature is placed on a glass plate with its convex surface, a thin air film of gradually increasing thickness is formed between the up
Derive the characteristic equations of motion for the underdamped, critical damped and overdamped free damped vibration system. Write short notes on i. Fourier series and har
Find out the recoil-velocity of the gun: As shell of mass 200 gm is fired at a velocity of 50 metres/second by a gun of mass 20 kg. Find out the recoil-velocity of the gun.
1.5kw/ton of refrigeration is required to maintain temp of -40c in the refrigerator.if the cycle works on carnot cycle.determine 1.cop,2.sink temp 3. heat rejejected to the sink/to
strain energy = m2l/2Ei
limitations of first law of thermodynamics: There are some limitations of First Law of Thermodynamics. 1. When a closed system undergoes thermodynamic cycle, the average he
temparature stresses in composite bars
hoops stress
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