The point where one weld bead stops and another starts is referred to as a(n) _____
a. restart
b. termination
c. arc strike
d. weld defect
a
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When a circuit breaker experiences an overcurrent, the circuit breaker ____.
a. closes b. heats c. cools d. trips
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____ in various alloyed forms was used by prehistoric man because of its presence in the meteoric iron used to produce tools.
A. Titanium B. Zinc C. Tin D. Nickel
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A main disadvantage of solar cells is that they:
A) Cannot produce power in large quantities B) Cannot produce alternating current C) Require toxic materials in their production D) Demand relatively high maintenance
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Iron and aluminum oxides are major components of igneous rocks
Indicate whether the statement is true or false
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