Answer Posted / vimal.v.p

The brittleness induced as a result of Diffusion of Hydrogen
atoms into metallic lattice is known as Hydrogen embrittlement.

This happens in Fasteners during the wire
preparation stage when the raw wire is in contact with HCl
in derusting tanks. When Metal react with Acid , Hydrogen
is liberated , which will be absorbed by metallic surfaces.

Also This phenomenon is sound during electroplating
of high grade fasteners, which will be rectified by baking
the fasteners at about 200 degrees and holding for some time

Briefly explain the term gravity

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How can i Check at site this material is Powder coated CRCA ?

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One litre is equal to ________cm3 ?

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State fresh water generation plant made water flow.

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Hello Friends I had my ONGC test today,but it was very bad.But I would give certain suggestions so that u may not face he problem which i had. Be thorough with Electrical Technology.Generators.motors stators etc.There are 5 questions on that. There were also good no.of questions from Hydraulic machine and Production technology. Then 3 from Strength of materials.And remember the dimensional quantities.

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Why the transformer is mostly used aboard the ship?

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Respected sir please send placement paper of bpcl

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