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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.
(a) Explain different types of frames. Compare their merits and demerits. Diagram and illustrate a frameless construction. (b) Illustration briefly the constructional features o
Environments can cause deterioration of foundation. Can you explain this in the following cases? a) A column footing which was stable for a number of years suddenly gave way. T
Q. Tank Insulation process? With Owner's approval, spray urethane foam may be used. Manufacturer's recommendations for service temperature limit shall be followed for specific
Logistics - Inbound and Outbound: Logistics plays a vital role in designing and shaping of SCM in a firm. Without an effective logistics system the effectiveness of the firms
i have an assignment due tomorrow
An aircraft moving with speed of 1200 Km/hr, uses simple air refrigeration cycle for air conditioning. The ambient temperature and pressure are 0.35 bar and - 10 o C respectively.
(a) How is specific gravity of electrolyte (battery water) measured and what should be the value of specific gravity? (b) How would you measure battery voltage and what is its reco
a) Why cutting fluids are used for machining of metals? List different types of cutting fluids and additives for cutting fluids. b) What factors are responsible for surface fin
FRICTION WELDING In this, friction is employed to generate heat b/w two sliding or rotating metal surfaces. This process is usually carried out by placing the pieces to be welded
Q. Show Leak Area Preparation? Clearly mark the location of the leak on the flange with a permanent marker. Notes: 1. Depressurizing hydrocarbon lines in non-emergency event
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