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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.
Sleepers: The sleeper is the part of the track on which the rails rest. Its functions are : (a) To hold the rails to the correct gauge. (b) To transmit and distribute t
type of furances and disadvantage advantage
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general characteristic of bulk deformation and different process and corresponding product properties
Q. Heavy traffic areas in pumps? These are areas around pumps, filters, control valves, PSV's and other equipment requiring frequent maintenance or servicing. Piping attache
Ease of Operation : For higher power transmissions, the operation of disengaging the clutch must not be tiresome to the driver.
Q. Describe Cold extrusion? • Cold extrusion is done at room temperature or near room temperature. • The advantages of this over hot extrusion are the lack of
Applicability of value engineering: Usually, all of the initial costs of a project add up to less than 50% of the total life cycle cost
What are combined footings? COMBINED FOOTINGS: When a footing supports two or more columns in the same line, it is called a combined footing. The combined footing which supp
assumptions made in parallelogram law of forces
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