University of Duhok Dep.of Spatial Planning: Ellipsoids
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Questions and Answers

What is the primary division of surveying?

  • Photogrammetric and control
  • Horizontal and vertical
  • Plane and geodetic (correct)
  • Land and sea

    • In which type of surveying is the earth's surface considered flat?

  • Photogrammetric surveying
  • Geodetic surveying
  • Plane surveying (correct)
  • Control surveying

    • What is the purpose of control surveys?

  • To determine the size and shape of the earth
  • To survey small areas of land
  • To establish a network of horizontal and vertical monuments (correct)
  • To obtain data using cameras or sensors

    • In which type of surveying are the principles of photogrammetry or remote sensing used?

    <p>Photogrammetric surveying (A)</p> Signup and view all the answers

    What is the main difference between geodetic and plane surveying?

    <p>The size of the area being surveyed (B)</p> Signup and view all the answers

    What is the assumption made about gravity in plane surveying?

    <p>It is parallel throughout the survey region (D)</p> Signup and view all the answers

    What is the equatorial radius of the GRS 1980 ellipsoid?

    <p>6,378,137 m (B)</p> Signup and view all the answers

    Which of the following ellipsoids was used in the USSR, Russia, and Romania?

    <p>Krassovsky (B)</p> Signup and view all the answers

    What is the inverse flattening of the International 1924 ellipsoid?

    <p>297 (A)</p> Signup and view all the answers

    Which of the following ellipsoids has an equatorial radius of approximately 6,377,563.4 m?

    <p>Everest (A)</p> Signup and view all the answers

    What is the polar radius of the WGS 1984 ellipsoid?

    <p>6,356,752.3141 m (D)</p> Signup and view all the answers

    Which of the following is NOT a reference ellipsoid?

    <p>Sphere (D)</p> Signup and view all the answers

    What is the purpose of measuring distances and angles in surveys?

    <p>To determine the configuration of the ground and directions of lines (A)</p> Signup and view all the answers

    What is the result of plotting measurements to a suitable scale?

    <p>A map (B)</p> Signup and view all the answers

    What is the definition of a scale in mapping?

    <p>The ratio between a distance on the map and the same distance on the ground (A)</p> Signup and view all the answers

    What type of survey is used to prepare maps showing locations of natural and man-made features and elevations of points on the ground?

    <p>Topographic surveys (A)</p> Signup and view all the answers

    What type of scale is represented by 1 cm = 5 m?

    <p>Engineer scale (D)</p> Signup and view all the answers

    What is the main purpose of surveying?

    <p>To locate positions of points on or near the surface of the earth (A)</p> Signup and view all the answers

    What type of survey is used to establish property corners, boundaries, and areas of land?

    <p>Property surveys (B)</p> Signup and view all the answers

    What is an example of a fraction scale?

    <p>1:500 (D)</p> Signup and view all the answers

    Why is it not possible to draw a map to full size?

    <p>Considering the actual surface dimensions of the area, it is never possible (B)</p> Signup and view all the answers

    What type of survey is used for highways, railroads, pipelines, canals, and other projects of long linear extent?

    <p>Route surveys (D)</p> Signup and view all the answers

    What type of survey is used to map shorelines and bottom depths of lakes, streams, and other larger bodies of water?

    <p>Hydrographic surveys (B)</p> Signup and view all the answers

    What type of surveying methods are employed when the control survey is of small extent?

    <p>Plane surveying methods (A)</p> Signup and view all the answers

    What is the purpose of a graphical scale in a map?

    <p>To visually show the scale of a map (A)</p> Signup and view all the answers

    What is the principle behind the construction of a diagonal scale?

    <p>Similar triangles (B)</p> Signup and view all the answers

    What is the unit of length in the System International (SI)?

    <p>Meters (D)</p> Signup and view all the answers

    What is the relationship between 1 meter and 1 kilometer in the SI system?

    <p>1 m = 10^(-3) km (D)</p> Signup and view all the answers

    What is the scale of a map if the area of a field is 4000 Sq.m and the length and breadth of the field on the map is 8 cm by 5 cm?

    <p>1:1000 (B)</p> Signup and view all the answers

    What is the unit of measurement used to measure areas in the SI system?

    <p>Square meters (C)</p> Signup and view all the answers

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