?Why is an inert shielding gas required for GTA welding?
A. ?To keep the air away from the hot tungsten and molten weld metal.
B. ?To help remove the welding fumes to make it easier to see the weld pool.
C. ?It helps to reduce the UV light that can cause skin burns.
D. ?All of the above
Answer: A
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Using nodal analysis, find v? and i? in the circuit of Fig. 3.79.
 FIGURE 1.png)
A ____ converts the non-linear output of a sensor to a linear signal.
A. square root extractor B. adaptive controller C. both a and b
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