The two principal shielding gases used for GTAW are _____
a. argon and helium
b. nitrogen and oxygen
c. argon and carbon dioxide
d. hydrogen and carbon dioxide
a
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Adult horses have ____ molar teeth.
A. 12 B. 18 C. 24 D. 42
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Which of the following may cause a tank to rupture?
A. Corrosion B. Scale buildup C. Underpressurization D. Overpressurization
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Small grains, such as oats or wheat, are planted in closely spaced rows, quickly cover the soil surface,
help reduce soil erosion, suppress weeds, and improve soil structure and tilth.
Indicate whether the statement is true or false.
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An insulation tester can be a stand-alone meter or an additional function of a DMM.
Answer the following statement true (T) or false (F)
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