Studying for D1.1 CWI – question regarding figure 6.1 – 6.3

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.

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