Surveying and Levelling Quiz Question with Answer

11. The real image of an object formed by the objective must lie

  1. In the plane of cross hairs
  2. At the centre of the telescope
  3. At the optical centre of the eye-piece
  4. Anywhere inside the telescope

12. The line of collimation method of reduction of levels, does not provide a check on

  1. Intermediate sights
  2. Fore sights
  3. Back sights
  4. Reduced levels

13. Contour interval is

  1. Inversely proportional to the scale of the map
  2. Directly proportional to the flatness of ground
  3. Larger for accurate works
  4. Larger if the time available is more

14. Hydrographic surveys deal with the mapping of

  1. Large water bodies
  2. Heavenly bodies
  3. Mountainous region
  4. Canal system

15. Subtense bar is an instrument used for

  1. Levelling
  2. Measurement of horizontal distances in plane areas
  3. Measurement of horizontal distances in undulated areas
  4. Measurement of angles

16. For the construction of highway (or railway)

  1. Longitudinal sections are required
  2. Cross sections are required
  3. Both longitudinal and cross sections are required
  4. None of these

17. Volume of the earth work may be calculated by

  1. Mean areas
  2. End areas
  3. Trapezoidal
  4. All the above

18. Which of the following methods of theodolite traversing is suitable for locating the details whichare far away from transit stations?

  1. Measuring angle and distance from one transit station
  2. Measuring angles to the point from at least two stations
  3. Measuring angle at one station and distance from other
  4. Measuring distance from two points on traverse line

19. Detailed plotting is generally done by

  1. Radiation
  2. Traversing
  3. Resection
  4. All of the above

20. In direct method of contouring, the process of locating or identifying points lying on a contour is called

  1. Ranging
  2. Centring
  3. Horizontal control
  4. Vertical control

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