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Welding HeadSubmerged arc welding head consists of the wire spool, wire feed system, flux delivery hopper and electrical contact nozzle. The electrode wire is unwound from the spool by the power driven rolls, straightened by a set of pressure rolls and fed through the contact nozzle into the weld pool. The drive for wire feed is from a motor with speed control provided either by means of a gear box or by means of thyristor controls.
CO2 Welding CO2 Welding is a variation of GMAW. Here the inert gas is replaced by gas mixtures or carbon dioxide, which are chemically active. The carbon dioxide decomposes in
(a) Explain the terms: full floating, three-quarter floating, semi-floating rear axles and their use in different types of vehicles (b) How does a Hotchkiss drive differ from a
Casting processes Casting processes. Here, the metal in the molten state is poured into a mould and allowed to solidify into a shape. The mould may be expendable or permanent.
Feces Collection: Small aliquots of feces are frequently analyzed to detect the presence of "hidden" blood, so called occult blood, which is recognized as one of the most ef
Cylinder : As the name implies it is a cylindrical vessel or space in which the piston makes a reciprocating motion (forward and backward). The varying volume created in the cylin
Pola r Modulus(Z p ): It is the ratio of polar moment of the inertia to outer radius. Z p = J / R Polar Modulus of solid body ( Z p ) =[ ?/32. D 4 ]/ D
(a) Show that the force exerted by a jet of water on an inclined fixed plate in the dissection of jet is provided by fx = .a.v 2 . sin2θ. Where a is area of jet, v is velocity of j
Method of resolution to find out the resultant force: Some time there is doubt for finding the angle of resultant (θ), the value of the angle θ will be very depending upon the
Q. Explain about Vessel Design Loads? Vessels and their supports shall be designed for all of the following conditions: • Erection: dead weight of fully dressed, empty vesse
(a) What are the disadvantages of not washing a motorcycle before servicing it? (b) List the parts on which water should not fall directly. (c) Write down the steps for washing and
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