With what degree of accuracy can current mobile GPS devices read geographic position?
A. 6 feet (2 meters)
B. 12 feet (4 meters)
C. 100 feet (30 meters)
D. 200 feet (61 meters)
Answer: A
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In the soldier pile and lagging system, the lagging generally consists of
A) pressure -treated plywood. B) structural steel sections. C) sheet steel. D) pressure -treated lumber. E) none of the above.
A tap drill usually provides about 15% of a full thread.
Answer the following statement true (T) or false (F)
The most commonly used process to prepare pipe for welding is the _____ torch process.?
A. ionized? B. oxy-fuel? C. plasma? D. manual?
Which if the following is true about a soil quality index (SQI)?
A) Soil quality indices may be used to monitor the effects of changes in soil management practice over time. B) The SQI must be related to a particular functional goal for the soil in the ecosystem. C) Soil pH, bulk density (Mg m-3 ) and soil active C levels (mg kg-1 ) may all be averaged together in a SQI. D) All of the above are true. E) None of the above is true.