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Gas Lenses
Gas lenses are used to provide a laminar flow of shielding gas. All These attachments have a porous barrier diffuser and are fitted around the electrode or collet and remain inside the nozzles. By the gas lenses it is possible to keep longer gap between the nozzle and the work piece and to weld joints with limited accessibility providing adequate shielding.
An engine uses air as the operating substance. At the beginning of compression the pressure is 90 KN /m 2 and the temp. is 40 0 C. During the adiabatic compression, the volume is
(a) An engine uses 6.5 Kg of oil per hr of a calorific value 30,000 kJ / kg. If the B. P. of the engine is 22KW and mechanical efficiency 85%. Calculate (i) Brake thermal eff
Necessity of Cooling System To prevent the engine from excessive heating. To avoid the piston seizure due to thermal expansion. To prevent burning of lubricant a
Sketch stress-strain diagram for Mild Steel in tension and also describe the important points. Also draw stress-strain curve for cast Iron, concrete and for elastic rubber only.
Equilibrium of body on the rough inclined plane: If the inclination is less than angle of friction, the body remains in equilibrium without any external force. If body is to b
Lean Mixture: It generally ranges from approximately 15 : 1 to 17 : 1. By the use of this fuel, engine runs for higher economy.
Ancillary Railway Structures: Overhead Transmission Lines When the line is electrified, the electric loco has to pick up the electric current from a cable that runs
explain the mig welding
Evolution of Specific volume of wet saturated steam -thermodynamics : Specific volume of wet saturated steam (V we t ) It is volume occupied by unit mass of wet satu
Equations of static equilibrium: In particular, if the forces are parallel and we take z-axis parallel to them, then the first, second and last equations are identically satis
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