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Q:- welding process using equipment with a flat characteristic :

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(a) Will require a permanent or temporary backing to be pre placed on the Root side of the welds.

(b) Has the advantage of being able to use any type or size of electrode.

(c) Is likely to be using an electrode less than 2 mm dia.

(d) Is likely to be using an electrode more than 2 mm dia.

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Q:- Flame cut preparation may, during welding, increase the likelihood of :

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(a) Cracking.
(b) Misalignment problems.
(c) Inclusions.
(d) All of the above.