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  • Question

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


  • Options
  • A. intermediate sights
  • B. fore sights
  • C. back sights
  • D. reduced levels.

  • Correct Answer
  • intermediate sights 

    • Surveying problems

    Search Results

    • 1. Chain surveying is well adopted for

    • Options
    • A. small areas in open ground
    • B. small areas with crowded details
    • C. large areas with simple details
    • D. large areas with difficult details.
      • Discuss
    • 2. For locating a distant object visible from two transit stations, the method usually preferred to, is

    • Options
    • A. Angles and distances from transit stations
    • B. Angles from two transit stations
    • C. distance from two transit stations
    • D. Angle from one transit station and distance from the other.
      • Discuss
    • 3. A sewer is laid from a manhole A to a manhole B, 250 m away along a gradient of 1 in 125. If the reduced level of the invert at A is 205.75 m and the height of the boning rod is 3 m, the reduced level of the sight rail at B, is

    • Options
    • A. 208.75 m
    • B. 202.75 m
    • C. 206.75 m
    • D. 211.75 m
      • Discuss
    • 4. The distance between terminal points computed from a subsidiary traverse run between them, is generally known, as

    • Options
    • A. traverse leg
    • B. a base
    • C. traverse base
    • D. all the above.
      • Discuss
    • 5. Check lines (or proof lines) in Chain Surveying, are essentially required

    • Options
    • A. to plot the chain lines
    • B. to plot the offsets
    • C. to indicate the accuracy of the survey work
    • D. to increase the out-turn
      • Discuss
    • 6. Short offsets are measured with

    • Options
    • A. an ordinary chain
    • B. an invar tape
    • C. a metallic tape
    • D. a steel tape.
      • Discuss
    • 7. The approximate formula for radial or perpendicular offsets from the tangent, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. Correction per chain length of 100 links along a slope having a rise of 1 unit in n horizontal units, is

    • Options
    • A.
    • B. 100 n2
    • C.
    • D. .
      • Discuss
    • 9. Which one of the following statements is correct?

    • Options
    • A. when the axes of rotation of the graduated circle and the verniers are not coincident, the instrument possesses eccentricity
    • B. the mean of the readings of the two verniers gives correct reading free from the eccentricity
    • C. one vernier may be used if the readings of two verniers differ by a constant
    • D. all the above.
      • Discuss
    • 10. Prolongation of chain line across an obstruction in chain surveying, is done by

    • Options
    • A. making angular measurements
    • B. drawing perpendiculars with a chain
    • C. solution of triangles
    • D. all the above.
      • Discuss

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