surveying iii (topographic and geodetic surveys) - Modern Prepper

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LESSON 1PRACTICE EXERCISEThe following items will test your grasp of the material covered in this lesson. There is only one correctanswer for each item. When you complete the exercise, check your answer with the answer key thatfollows. If you answer any item incorrectly, study again that part which contains the portion involved.1. In geodesy, the earth is defined, for mathematical purposes, as a(n)A. Oblate spheroidB. Spherical geoidC. SphereD. Ellipsoid of revolution2. Points on the ellipsoid are defined in terms of ________________________________.A. Astronomic latitudes and longitudesB. Gravity determinationC. Latitude and longitudeD. Astronomic azimuths3. The gravity potential on the geoid is ________________________________________________.A. Perpendicular to the ellipsoid of revolutionB. The same everywhereC. Parallel to the semiminor axisD. Equal to the centripetal force of the earth's rotation4. The angle formed when the ellipsoid and geoid intersect is equal to the ____________________.A. Normal to the ellipsoidB. Deflection of the verticalC. Normal to the geoidD. Geoid separation5. In geodetic surveying, the techniques used to determine precise points on the earth'ssurface are horizontal control techniques, vertical control techniques, and___________________________________________________________________________________.A. Gravity surveysB. Astronomic observationsC. The geodetic azimuth determinationD. The determination of the deflection of the verticalEN0593 1-42
6. Laplace stations are geodetic positions on the earth's surface where _______________________.A. Geodetic latitude, longitude, and directions are measuredB. The ellipsoid intersects the geoidC. The normals to the geoid and ellipsoid are parallelD. Astronomic longitude and azimuth are measured7. Astronomic observations (latitude and longitude) give a direction with respect to the___________________________________________________________________________________.A. Normal to the ellipsoidB. EllipsoidC. SpheroidD. Geoid8. The variation of the earth's gravity, with respect to latitude, is caused by two factors--the____________________ and the earth's ellipsoidal shape.A. Varying densities of the earth's massesB. Differences in elevations on the earth's surfaceC. Rotation of the earthD. Makeup of the mantle9. The theoretical value of gravity represents the _______________________________________.A. Force of the earth's attraction due to gravity, minus observed gravityB. Force of the earth's attraction due to gravity, minus the gravity anomalyC. Force of the earth's attraction due to gravitation, minus the centrifugal force due to rotation ofthe earthD. Observed gravity, minus the force of the earth's attraction due to gravity10. In surveying, the pendulum apparatus is used to find the _______________________________.A. Theoretical gravity at a stationB. Absolute acceleration of gravityC. Early-tide correction factorD. Gravitational constant11. Which of the following is not a parameter to a horizontal geodetic datum?A. LongitudeB. FlatteningC. Gravimetric dataD. Equatorial radius1-43 EN0593
Page 1 and 2: SUBCOURSEEN0593EDITIONAUNITED STATE
Page 3 and 4: TERMINAL LEARNING OBJECTIVE:ACTION:
Page 6 and 7: Part G: Adjusting Precise-Positioni
Page 8 and 9: PART A - FIGURES OF THE EARTH1-1. T
Page 10 and 11: Figure 1-2. Flattening Fractiona. T
Page 12 and 13: 1-3. Geoid. In geodesy, precise com
Page 15 and 16: point in the survey to provide the
Page 18 and 19: one side of a triangle and all of t
Page 20 and 21: Figure 1-10. Simple Triangulation N
Page 22 and 23: observation, contains a light sourc
Page 24 and 25: of a horizontal rod with a small sp
Page 26 and 27: The Airy theory, announced by G. B.
Page 28 and 29: Figure 1-15. Products of the Gravim
Page 30 and 31: a. If the shape of the earth was ex
Page 32 and 33: Figure 1-16. Single Astronomic Stat
Page 34 and 35: Figure 1-17. Astro-Geodetic Deflect
Page 36 and 37: Figure 1-19. Astro-Geodetic Datum O
Page 38 and 39: (c) The significance of a gravity-o
Page 40 and 41: absolute deflections of the vertica
Page 42 and 43: Figure 1-23. Preferred Datumsa. The
Page 44 and 45: 1-17. The World Geodetic System. Be
Page 46 and 47: Figure 1-25. Using the Same Referen
Page 50 and 51: 12. Which of the following is assum
Page 52 and 53: LESSON 1PRACTICE EXERCISEANSWER KEY
Page 54 and 55: THIS PAGE IS INTENTIONALLY LEFT BLA
Page 56 and 57: for all military and civilian activ
Page 58 and 59: i. Additional support for other top
Page 60 and 61: 2-7. Status. At present, topographi
Page 62 and 63: in both. (North American Datum of 1
Page 64 and 65: water can impede leveling operation
Page 66 and 67: A field recording booklet. A single
Page 68 and 69: PART I - OFFICE WORK2-24. General.
Page 70 and 71: PART J - SURVEY COMMUNICATION2-28.
Page 72 and 73: length or side is known, and all th
Page 74 and 75: second-order, Class I net. The leng
Page 76 and 77: The number of observations required
Page 78 and 79: to perform the reconnaissance. Fail
Page 80 and 81: and cultivated, or fields may have
Page 82 and 83: e an alphanumeric symbol that is st
Page 84 and 85: 2-53. Intervisibility of Stations.
Page 86 and 87: station is (K/2) 2 x 0.0676, or one
Page 88 and 89: Figure 2-8. Similar Triangles Solut
Page 90 and 91: 2-54. Height of Obstructions. It is
Page 92 and 93: authorized to change the name, it s
Page 94 and 95: Figure 2-12. Cells Connected in Par
Page 96 and 97: added as the cells weaken. Three un
Page 98 and 99:
Figure 2-16. Construction Details f
Page 100 and 101:
2-60. Wooden Towers. When it become
Page 102 and 103:
LESSON 2PRACTICE EXERCISEThe follow
Page 104 and 105:
11. The face of the 5-inch signal l
Page 106 and 107:
LESSON 2PRACTICE EXERCISEANSWER KEY
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average line in a triangulation sys
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3-4. Slope Measurements. The slope
Page 112 and 113:
strip as close as possible to its f
Page 114 and 115:
. Sight along the tops of both of t
Page 116 and 117:
Column 1. Record the station number
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stake to steady it. With the back o
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Figure 3-3. DA Form 4446 (Sample of
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micrometer in this optical system i
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laterally across the front of the e
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Figure 3-7. Horizontal Circle and M
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out of adjustment. If the index mar
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(1) In order to avoid instrumental
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location of the vertical circle on
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Figure 3-13. Open Traversec. Closed
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designate the exact point of refere
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example, a line with an azimuth of
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When adjusting a traverse that star
Page 142 and 143:
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11. The unit of graduation on a hor
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THIS PAGE IS INTENTIONALLY LEFT BLA
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differential leveling. The theodoli
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additional runs are made due to exc
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Figure 4-2. Wild N-3 Precision Leve
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(8) Loosen the azimuth clamp (13),
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4.7. Miscellaneous Equipment. In ad
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(2) To check for gross errors in th
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(a) (1) Begin by completing the inf
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Set up and level the instrument. Re
Page 166 and 167:
Figure 4-8. Sun and Wind Code(5) Th
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(10) Enter the interval between the
Page 170 and 171:
Figure 4-9. Closed-Circuit River Cr
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Figure 4-11. Sample DA Form 5820 (R
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is 0. When the telescope is pointed
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stations. However, since all statio
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a. Complete the heading, as shown.b
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a. (1) Enter the date, as in the sa
Page 182 and 183:
Page 184 and 185:
11. The maximum length of site to o
Page 186 and 187:
Page 188 and 189:
PART A - GLOBAL POSITIONING SYSTEM
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5-7. Pseudorange. A pseudorange is
Page 192 and 193:
5-15. Number of Pseudorange Observa
Page 194 and 195:
i. Probable Error Measures. The acc
Page 196 and 197:
Table 5-1. Representative GPS Error
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Table 5-2. Carrier Phase Trackinga.
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exercise extreme caution in applyin
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not be designed or performed to ach
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Table 5-3. GPS-S Design, Geometry,
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f. Multiple/Repeat Baseline Connect
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possible ionospheric and tropospher
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Figures 5-4. PDOP Versus Time PlotP
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e. Field Processing and Verificatio
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All carrier phase relative-surveyin
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time spent and the cost of conducti
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movement between occupation sites,
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5-37. General. GPS baseline solutio
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(1) Receiver Time. This technique u
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NOTE: Repeated baselines should be
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5-43. Loop Closure Checks. Postproc
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necessary to determine approximate
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This will ensure that future work w
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may (and usually does) far exceed t
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important in evaluating the overall
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i. Relative GPS baseline standard e
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Page 240 and 241:
12. When the networking method is s
Page 242 and 243:
Page 244 and 245:
THIS PAGE IS INTENTIONALLY LEFT BLA
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FAR-77 obstructions. Aircraft-movem
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Figure 6-1. Imaginary SurfacesEN059
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Figure 6-3. Approach Surfacesa. Fed
Page 252 and 253:
. Federal Aviation Regulation-77, S
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Table 6-4. Airport Obstruction Accu
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A horizontal scale of 1:12,000 and
Page 258 and 259:
Figure 6-4. Sample DA Form 5821 (Ai
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Figure 6-5. Sample DA Form 5822 (PA
Page 262 and 263:
Page 264:
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