Steel-wire bar supports that offer no protection against rusting are designated as Class _____.
a. A
b. B
c. C
d. D
a. A
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Convert the following to SI units, using the correct significant figures.
 FIGURE 1.png)
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To be classified as a conservation tillage practice, a system must leave at least what portion of the soil surface covered with plant residues?
A) 20% B) 10% C) 30% D) 50% E) 40%
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Match the component with its description.
A. meters flow of fuel oil into the chamber B. generates approximately 10,000 volts needed for spark C. devices that will shut burner down in case the burner doesn't fire D. creates turbulence in the air-oil mixture to increase efficiency E. changes its resistance depending on the amount of light it senses F. insulated with ceramic to prevent electrical ground
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Give the fractional equivalent of 45%.
A. 9/20 B. 11/20 C. 3/4 D. 4/5
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