____ is a specific grouping number for several classifications of electrodes having similar composition and welding characteristics.
A) Classification number
B) Filler metal specification number
C) F-number
D) A-number

Question

Quizplus · Accepted Answer

F-number is used to specify the filler metal usability characteristics for welding. A-number is used to specify the welder’s qualification. Classification number and filler metal specification number are also used in welding, but they do not specifically group electrodes based on composition and welding characteristics.

____ Is a Specific Grouping Number for Several Classifications of Electrodes