Bu basic CH5

Question 1

1. What are conducted to obtain data essential for planning, estimating, locating, and layout for the various phases of construction activities or projects? (Page 5-4)

Answer 1

construction surveys

Question 2

2. What do surveys rely on to establish a known elevation on a construction site? (Page 5-4)

Answer 2

bench marks

Question 3

3. In most permanent military installations, monument BMs are established in a grid system approximately how far apart throughout the base to have a ready reference for elevations of later construction in the station? (Page 5-7)

Answer 3

1/2 mile

Question 4

4. What are specific tide levels that surveyors use as surfaces of reference for depth measurements in the sea and as a base for determining elevations on land? (Page 5-8)

Answer 4

tidal datums

Question 5

5. What is the average height of the sea for all stages of the tide after long periods of observations? (Page 5- 8)

Answer 5

mean sea level (MSL)

Question 6

6. What term refers to the first working over of an area that is overgrown or rough? (Page 5-9)

Answer 6

pioneering

Question 7

7. What is a construction operation consisting of cleaning a designated area of trees, timber, brush, other vegetation, and rubbish? (Page 5-9)

Answer 7

clearing

Question 8

8. What is the uprooting and removing of roots and stumps referred to as? (Page 5-10)

Answer 8

grubbing

Question 9

9. What is the process of removing and disposing of objectionable topsoil and sod referred to as? (Page 5- 10)

Answer 9

stripping

Question 10

10. What is the material removed by stripping called? (Page 5-10)

Answer 10

spoil

Question 11

11. Dozers can handle all short-haul excavations up to how many feet? (Page 5-10)

Answer 11

300

Question 12

12. What equipment should be used for long-haul excavations over 300 feet? (Page 5-10)

Answer 12

scrapers

Question 13

13. What is the construction of facilities needed to allow excess surface and subsurface water to flow from the construction site? (Page 5-11)

Answer 13

drainage

Question 14

14. What is the instrument most commonly used to attain the level line of sight required for differential leveling? (Page 5-17)

Answer 14

dumpy level

Question 15

15. What is the most popular and frequently used type of leveling rod? (Page 5-22)

Answer 15

philadelphia rod

Question 16

16. What is the fully extended length of the Philadelphia rod? (Page 5-22)

Answer 16

13.10 feet

Question 17

17. What is the most common procedure for determining elevations in the field, or for locating points at specified elevations? (Page 5-27)

Answer 17

differential leveling

Question 18

18. What is the plotting of irregularities of the ground, making cuts or fills, to a definite limit of grade, elevation, and alignment? (Page 5-34)

Answer 18

grade work

Question 19

19. Hub stakes are 2 inches by 2 inches by approximately how many inches and are used primarily for well-defined surveyors reference points? (Page 5-34)

Answer 19

12 inches

Question 20

20. What mark the horizontal location of the earthwork to be completed and give the direction of the proposed construction? (Page 5-35)

Answer 20

line stakes

Question 21

21. What is the lowering the elevation of a grade known as? (Page 5-39)

Answer 21

making a cut

Question 22

22. What types of stakes are set on the property line of a construction site known as? (Page 5-42)

Answer 22

right of way stakes

Question 23

23. The Unified Soil Classification System (USCS) divides all soils into three major divisions: coarse- grained soils, fine-grained soils, and what other type of soils? (Page 5-42)

Answer 23

highly organic

Question 24

24. What type of soils are those in which at least half of the material, by weight, is larger than, or retained on, a No. 200 sieve? (Page 5-42)

Answer 24

coarse-grained

Question 25

25. What are two of the most common and important soils tests that an Engineering Aid (EA) must learn to perform? (Page 5-42)

Answer 25

soil compaction and density testing

Question 26

26. What is the process of increasing the density, or the amount of solids per unit volume, of soil by mechanical means to improve such soil properties as strength, permeability, and compressibility? (Page 5- 43)

Answer 26

compaction

Question 27

27. For most soils and for a given compactive effort, the density of the soil will increase to a certain point as the moisture content is increased. What is that point called? (Page 5-43)

Answer 27

maximum density

Question 28

28. What is the moisture content at which maximum density occurs called? (Page 5-43)

Answer 28

optimum moisture content (OMC)

Question 29

29. What is the bearing capacity of a soil expressed in terms of? (Page 5-44)

Answer 29

shear resistance

Question 30

30. What is a measure of the shearing resistance of a soil under carefully controlled conditions of density and moisture? (Page 5-44)

Answer 30

california bearing ratio (cbr) test

Question 31

31. A soil is considered susceptible to frost when it contains what percent or more by weight of particles smaller than 0.020 mm in diameter? (Page 5-44)

Answer 31

3 percent

Question 32

32. How many purposes for soil stabilization are there? (Page 5-44)

Answer 32

three

Question 33

33. What method of applying soil stabilization is used where it is necessary to combine two different soils together for stabilization? (Page 5-45)

Answer 33

admix