Advanced Gas Metal Arc Welding (GMAW) Practice Test

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In a welding gun with a 30% duty cycle, how long can it operate continuously?

One minute

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Three minutes

A welding gun with a 30% duty cycle indicates that it can operate for 30% of a given time frame before needing to cool down. This means that within a 10-minute period, the gun can be used for 3 minutes, followed by a mandatory cool-down period during the remaining 7 minutes.

To elaborate, a 30% duty cycle means that for every 10 minutes of operation, 3 minutes can be spent actively welding, and the remaining 7 minutes must be allocated for cooling to prevent overheating and ensure the longevity and safety of the equipment.

Therefore, the correct interpretation of the duty cycle leads to a continuous operational capacity of 3 minutes for the welding gun before it requires a cooling period.

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