Q:- What is meant by the term junction?

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1. The area containing the HAZ and the weld metaL
2. The weld metal and parent metal
3. The boundery between the fusion zone and the HAZ
4. The part of the weld, has undergone mettalurgical changes due to the heat from welding

Q:- Cast and helix are terms that refer to :

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A. Ingredients in the flux covering
B. Bead deposition techniques for distortion control
C. Quality of the welding wires
D. Sources from which wires are drawn

Q:-In accordance with BS 2901 which of the following is classified as triple De-oxidized filler wire:

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(a) A !7 wire.  
(b) A 18 wire.  
(c) A 15 wire.  
(d) All of the above.