To phase shift the triac, separate the ____ from the voltage applied to MT1 and MT2.

a. gate current
b. gate grounds
c. gate pulses
d. gate sinks

c. gate pulses

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A vertical distance above a datum point is described as a(n) _____.

a. contour b. rise c. differential d. elevation

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An SSOLR initiates a trip if the phase currents exceed what percentage of the trip current dial setting?

a. 80% b. 100% c. 125% d. 150%

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Photocomposition occurs when a chemical is broken down by ____________________

Fill in the blank(s) with correct word

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To avoid atmospheric contamination of the rod when using the GTAW freehand technique, keep the tip

_____. a. above the weld axis b. within the shielding gas envelope c. away from the shielding gas envelope d. coated with flux

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