In this animated activity, learners examine the fundamental operation of a logic probe that is used to detect logic signals in a digital circuit.
Students view a video that shows the correct methods for starting a GTAW weld pool and adding filler. It focuses on the two problems that many students have – adding filler too soon and angling the torch so that the filler melts prematurely on the filler rod. Note: This activity is 3.6 mb.
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