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13: Know and Understand
List the three general soil categories from the largest particle size to the smallest.
After a basic soil test is performed, you measure 1/8″ of sand, 3/8″ of clay, and 1 1/2″ of silt in the 2″ sample. What is the percentage of each soil type in the sample?
What is removed from soil when it is compacted?
What is the standard unit of measure for large soil quantities?
A. Pounds (lb).
B. Square feet (ft2).
C. Cubic yards (yd3).
D. Feet (ft).
You can check the accuracy of the 3-4-5 method for laying out square building corners by using the _____ theorem.
What are batter boards and how are they used in laying out foundations?
List three reasons why land surveys are conducted.
What do the circuit boards inside modern electronic distance measuring (EDM) devices use to calculate distance?
On an engineer’s target rod, the four black line markings between each numbered tenth of a foot represent what fraction of a foot?
A. 1/16th.
B. 1/100th.
C. 1/32nd.
D. 1/1000th.
How does a surveyor determine the elevation at a specific point of land using a laser level?
Each time the level is set up or moved during the differential leveling process, how many backsight reading(s) must be taken at the previous reference point?
True or False?
The main difference between differential and profile leveling is that only differential leveling uses turning points and foresights.
A. True
B. False
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