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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.
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Writing of a Welding Procedure specification (WPS ) A typical working procedure specification is written with all the factors of production in mind. Both experience and latest t
Select a standard rolled steel I-section for the simply supported beam shown in figure below. Select an appropriate factor of safety and material strength. Include references for
(i) Use the GOAL SEEK tool in MS EXCEL to solve the following equation and determine the TWO roots of this equation between 0 X 4 -8x 3 -x 2 -14x+21=0 (ii). Use the SOLVER t
Objectives After studying this section, you should be capable to: define basic nature of plastics, differentiate between various types of plastics, define polym
question no 2,page no 84 of strenght of materials by G H Ryder
BASIC DEFINITIONS - Air transportation: A civil engineer dealing with airport engineering shall have to know the precise meaning of some terms. These are defined below :
1. Production Capacity : Machines idled by breakdowns cannot produce thus the capacity of the systems is reduced. 2. Production cost: Labor costs per unit rise beca
Torque Transmission : The clutch should be able to transmit the maximum torque of the engine under all conditions. It is usually designed to transmit 125 to 150 percent of the max
Obtain the closed loop transfer function of the system shown:
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