A welder calculation carries 42 amperes after applying a supplied 60-percent factor. What rated primary current was used?

Texas Journeyman exam practice question · Special Occupancies, Equipment & Conditions

A welder calculation carries 42 amperes after applying a supplied 60-percent factor. What rated primary current was used?

A25.2 amperes
B42 amperes
C60 amperes
70 amperes

Why D is correct

Reverse the supplied factor: 42 ÷ 0.60 = 70 amperes rated primary current. Keep units consistent and use only the factors stated; no optional method or unstated demand factor is assumed.

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A welder calculation carries 42 amperes after applying a supplied 60-percent factor. What rated primary current was used?

A welder calculation carries 42 amperes after applying a supplied 60-percent factor. What rated primary current was used?

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