Question

For how long is a tack welders qualification valid for?

A) one year
B) two year
C) indefinitely, unless there is a reason to question his or her ability
D) five years

Answer 1

A tack welder's qualification is valid indefinitely unless there's a reason to question their ability, subject to the welder not having a significant break in welding activities.

Step-by-step explanation:

The qualification of a tack welder is generally valid indefinitely, but this can vary depending on the policies of the governing bodies or employers. The typical standard is that a welder's qualification remains valid unless there is a reason to question their ability. If the welder continuously performs welding activities without a significant break, commonly defined as not welding for six months or longer, their qualification can remain in effect. However, any significant change in the process or conditions under which the welder was originally qualified may require requalification. So, the correct answer to how long a tack welder's qualification is valid would be C) indefinitely, unless there is a reason to question his or her ability.