surveying iii (topographic and geodetic surveys) - Modern Prepper

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LESSON 5PRACTICE EXERCISEThe following items will test your grasp of the material covered in this lesson. There is only one correctanswer for each item. When you have completed the exercise, check your answer with the answer keythat follows. If you answer any item incorrectly, study again that part which contains the portioninvolved.1. In a NAVSTAR GPS, distances are measured between the receiver antenna and the satellites, andthe position is determined from the intersections of the ___________________________________.A. GuidelineB. RedundantC. Line DistanceD. Range vector2. NAVSTAR GPS consist of three distinct segments, which factor is not included?A. Time segmentB. Space segmentC. Control segmentD. User segment3. The L1 signal is modulated under what code(s)?A. P-codeB. Y-codeC. C/A-code and Y-codeD. P-code and C/A-code4. The PPS user can use a decryption device to achieve a 3D accuracy in the range of_________________________________________________________ with a single-frequency receiver.A. 10 to 16 metersB. 8 to 12 metersC. 5 to 10 metersD. 3 to 5 meters5. Simultaneous range observations to numerous satellites can be adjusted using___________________________________________________________________________________.A. Different field proceduresB. GPS-related softwareC. Weighting techniquesD. Different time framesEN0593 5-52
6. Given the changing satellite geometry and other factors, GPS accuracy is dependent on___________________________________________________________________________________.A. Coordinates' orderB. Time or locationC. Equipment usedD. Computer software7. How many receivers are required for differential positioning?A. FourB. ThreeC. TwoD. One8. What is the less acceptable GPS technique for establishing baselines?A. PseudokinematicB. RTK/OTFC. KinematicD. Rapid Static9. Geodetic leveling gives rise to a height called __________________, often known as the heightabove MSL.A. Datum heightB. Geoid heightC. Orthometric heightD. Ellipsoid height10. The first step in planning a control survey is to _______________________________________.A. Gather the equipment to be utilizedB. Establish a design that will fit the situationC. Obtain the visibility diagrams of each stationD. Determine the ultimate accuracy requirements11. GPS surveying requires that all stations have an unobstructed view of 15° above the horizon andsatellites below __________ should not be observed.A. 5°B. 10°C. 12°D. 15°5-53 EN0593
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SUBCOURSEEN0593EDITIONAUNITED STATE
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TERMINAL LEARNING OBJECTIVE:ACTION:
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Part G: Adjusting Precise-Positioni
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PART A - FIGURES OF THE EARTH1-1. T
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Figure 1-2. Flattening Fractiona. T
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1-3. Geoid. In geodesy, precise com
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point in the survey to provide the
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one side of a triangle and all of t
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Figure 1-10. Simple Triangulation N
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observation, contains a light sourc
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of a horizontal rod with a small sp
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The Airy theory, announced by G. B.
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Figure 1-15. Products of the Gravim
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a. If the shape of the earth was ex
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Figure 1-16. Single Astronomic Stat
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Figure 1-17. Astro-Geodetic Deflect
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Figure 1-19. Astro-Geodetic Datum O
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(c) The significance of a gravity-o
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absolute deflections of the vertica
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Figure 1-23. Preferred Datumsa. The
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1-17. The World Geodetic System. Be
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Figure 1-25. Using the Same Referen
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LESSON 1PRACTICE EXERCISEThe follow
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12. Which of the following is assum
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LESSON 1PRACTICE EXERCISEANSWER KEY
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THIS PAGE IS INTENTIONALLY LEFT BLA
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for all military and civilian activ
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i. Additional support for other top
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2-7. Status. At present, topographi
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in both. (North American Datum of 1
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water can impede leveling operation
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A field recording booklet. A single
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PART I - OFFICE WORK2-24. General.
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PART J - SURVEY COMMUNICATION2-28.
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length or side is known, and all th
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second-order, Class I net. The leng
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The number of observations required
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to perform the reconnaissance. Fail
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and cultivated, or fields may have
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e an alphanumeric symbol that is st
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2-53. Intervisibility of Stations.
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station is (K/2) 2 x 0.0676, or one
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Figure 2-8. Similar Triangles Solut
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2-54. Height of Obstructions. It is
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authorized to change the name, it s
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Figure 2-12. Cells Connected in Par
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added as the cells weaken. Three un
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Figure 2-16. Construction Details f
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2-60. Wooden Towers. When it become
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11. The face of the 5-inch signal l
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average line in a triangulation sys
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3-4. Slope Measurements. The slope
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strip as close as possible to its f
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. Sight along the tops of both of t
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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
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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
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Figure 4-8. Sun and Wind Code(5) Th
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(10) Enter the interval between the
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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
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11. The maximum length of site to o
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Page 188 and 189: PART A - GLOBAL POSITIONING SYSTEM
Page 190 and 191: 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
Page 198 and 199: Table 5-2. Carrier Phase Trackinga.
Page 200 and 201: exercise extreme caution in applyin
Page 202 and 203: not be designed or performed to ach
Page 204 and 205: Table 5-3. GPS-S Design, Geometry,
Page 206 and 207: f. Multiple/Repeat Baseline Connect
Page 208 and 209: possible ionospheric and tropospher
Page 210 and 211: Figures 5-4. PDOP Versus Time PlotP
Page 212 and 213: e. Field Processing and Verificatio
Page 214 and 215: All carrier phase relative-surveyin
Page 216 and 217: time spent and the cost of conducti
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Page 220 and 221: 5-37. General. GPS baseline solutio
Page 222 and 223: (1) Receiver Time. This technique u
Page 224 and 225: NOTE: Repeated baselines should be
Page 226 and 227: 5-43. Loop Closure Checks. Postproc
Page 228 and 229: necessary to determine approximate
Page 230 and 231: This will ensure that future work w
Page 232 and 233: may (and usually does) far exceed t
Page 234 and 235: important in evaluating the overall
Page 236 and 237: i. Relative GPS baseline standard e
Page 240 and 241: 12. When the networking method is s
Page 242 and 243: LESSON 5PRACTICE EXERCISEANSWER KEY
Page 244 and 245: THIS PAGE IS INTENTIONALLY LEFT BLA
Page 246 and 247: FAR-77 obstructions. Aircraft-movem
Page 248 and 249: Figure 6-1. Imaginary SurfacesEN059
Page 250 and 251: Figure 6-3. Approach Surfacesa. Fed
Page 252 and 253: . Federal Aviation Regulation-77, S
Page 254 and 255: Table 6-4. Airport Obstruction Accu
Page 256 and 257: A horizontal scale of 1:12,000 and
Page 258 and 259: Figure 6-4. Sample DA Form 5821 (Ai
Page 260 and 261: Figure 6-5. Sample DA Form 5822 (PA
Page 262 and 263: LESSON 6PRACTICE EXERCISEThe follow
Page 264: LESSON 6PRACTICE EXERCISEANSWER KEY
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