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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.
Describe Nusselt Number, Reynolds Number and Prandtl Number. Get the relation between these three for a circular cylinder losing heat in forced convection to the air flowing around
Ask question #MinimumThe man is pulling a load of 4kg with one arm held as shown. Determine the force FH this exerts on the humerus bone H, and the tension developed in the biceps
A cantilever beam of 1800 mm length is subjected to point loads of 3.5 kN, 4.3 kN, 1.2 kN and 2.8 kN at distances of 400 m, 400 m, 400 m 300 m and 300 m, respectively from the fixe
scale and sludge formation
Illustrate the general shear failure in bearing capacity. General Shear Failure: In this case of failure, contiguous failure surfaces develop between the edges of the footin
Review questions condition of equilibrium grade 11 unit 7
Draw the Gas welding System and label its parts. Illustrate the several types of flames used in gas welding along with temperature range.
Define the Advantages of Electro discharge machining 1. The surface finish obtained is very good. 2. This process can be used for any hard material. 3. Materials likes ca
Determine maximum mechanical advantage: For a lifting machine 15 N effort is needed to raise a load of 70 N with an efficiency equal to 60%, and 25 N effort is needed to lift
Forces working on dam: Let a dam retaining water as illustrated in Figure (a). What are the forces working on it? Solution The forces working on dam are as follows:
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