TIG welding, thoriated tungsten electrodes are used, because it (A) Has higher current carrying capacity (B) Has better electron emissivity (C) Is stronger than ordinary tungsten (D) Is easy to prepare

TIG welding, thoriated tungsten electrodes are used, because it
(A) Has higher current carrying capacity
(B) Has better electron emissivity
(C) Is stronger than ordinary tungsten
(D) Is easy to prepare
by

1 Answer

Answer :

Option B
by

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