What position should a drawbar be placed into for transporting an attachment behind a tractor?
a. Center fixed
b. Offset left of center
c. Offset right of center
d. Lowered to lowest level
a
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The minimum length allowed for driven ground rods under normal conditions is _____.
a. 4' b. 8' c. 10' d. 16'
List the four equations used to develop x-bar and r-bar charts.
What will be an ideal response?
Consider the aluminum end of the aluminum=copper phase diagram in the figure accompanying this problem. (a) Outline the complete program for obtaining a maximum hardness in an alloy of aluminum, with 4 percent copper, if the aging temperature is 403 K. (b) When the maximum hardness is obtained, what would be the nature of the precipitate? Explain.
The amount of exchangeable acidity is much smaller than the active acidity.
a. False, because there is no such thing as active acidity b. False, because there is no such thing as exchangeable acidity c. True d. False, exchangeable acidity is much larger than active acidity