Question

Depending on the range selected, for each 100 amperes of current, the arc voltage of a welding machine is typically lower than the open-circuit voltage by:

A. 2 volts
B. 5 volts
C. 10 volts
D. 15 volts

Answer 1

The arc voltage of a welding machine is typically lower than the open-circuit voltage by 5 volts.

Step-by-step explanation:

The answer is B. 5 volts. When using a welding machine, the arc voltage is typically lower than the open-circuit voltage. For every 100 amperes of current in the machine, the arc voltage is typically lower by 5 volts.