welding training center chennai

Q:- The main problem with solution treatment of stainless steel is that?

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(A). Controlling the rate of temperature rise
(B). Controlling the cooling rate
(C). Length of the soak period
(D). High risk of distortion

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Q:- In friction welding, is the metal at the interface in the :

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(a) Liquid state.

(b) Solid state.

(c) Plastic state.

(d) Elastic state.

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Q:- Three essential factors for producing fusion weld are melting, removal of surface oxide from the joint surfaces and elimination of atmosphere from the region of the arc. Name the fourth one :

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(a) The weld must be free from stress.

(b) The filler material must match that of the weld.

(c) The completed joint must at lease match the mechanical properties.

(d) An arc for a heat surface.

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