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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.
Working Chamber of EBW The chamber is usually rectangular in shape and has heavy windows to permit viewing the work. Both high voltage machines and low voltage machines
b) Differentiate between Hot and Cold working process. What are their advantages and disadvantages? Illustrate with examples.
Q. Design Air Coolers for plant layout? As air coolers (sometimes called aerial coolers, or fin-fans) have extensive heat transfer surfaces, they are more vulnerable to failure
INTRODUCTION: Service sector, you shall study about the growth of service sector followed by the growth of automobile industry, two-wheeler industry and Hero Honda Motors Limited
how it works
Find out the average resistance of the ground: In a construction of pile-driving for building, a pile driver of mass 25 kg freely drops through a height of 3 metre on the top
1 Prepare a suitable system Memory Map over the first 3K of memory, a suitable PIO configuration and associated Z80 PIO initialisation words in order to support a single electro-hy
A load of 1.9 MN is applied on a short concrete column 300mm x 300mm. The column is reinforced with four steel bars of 10mm diameter, one in each corner. Evaluate the stresses in t
Determine hardness of material: Hardness is surface property. It can be defined as resistance of material against permanent deformation of surface in the form of scratch, inde
Q. Supply Fan - air-conditioning guidelines? Recheck final air quantities and static pressure. Indicate location of motor and belt guard. For fans located in plenums ensure ade
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