The best way to control erosion and sedimentation is to _____.
a. permit walking across only graded areas
b. carefully smooth graded areas
c. permit driving across only graded areas
d. immediately seed graded areas
Answer: D
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The plug valve is used to _____.
a. start and stop flow b. regulate flow c. relieve pressure d. regulate the direction of flow
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When should grass plants be watered?
What will be an ideal response?
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For what is a soldering gun usually used?
What will be an ideal response?
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