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  • Question

  • In levelling operation,


  • Options
  • A. The first sight on any change point is a back sight
  • B. The second sight on any change point is a fore sight
  • C. The line commences with a fore sight and closes with a back sight
  • D. The line commences with a back sight and closes with a foresight.

  • Correct Answer
  • The line commences with a back sight and closes with a foresight. 

    • Surveying problems

    Search Results

    • 1. Ranging in chain survey means

    • Options
    • A. looking at an isolated point not on the line
    • B. establishing an intermediate point on the line
    • C. determining the distance between end points
    • D. determining the offset distance
    • E. none of these
      • Discuss
    • 2. If the radius of a simple curve is 600 m, the maximum length of the chord for calculating offsets, is taken

    • Options
    • A. 10 m
    • B. 15 m
    • C. 20 m
    • D. 25 m
    • E. 30 m.
      • Discuss
    • 3. The ratio of the linear displacement at the end of a line, subtended by an arc of one second to the length of the line, is

    • Options
    • A. 1:206 300
    • B. 1:3440
    • C. 1:57
    • D. 1:100.
      • Discuss
    • 4. The apparent error on reversal is

    • Options
    • A. equal to the actual error
    • B. twice the actual error
    • C. thrice the actual error
    • D. none of these.
      • Discuss
    • 5. The total change in level along the line is equal to total back sights

    • Options
    • A. minus total fore sights
    • B. the total rises minus total falls
    • C. the reduced level of last point minus reduced level of the first point
    • D. all the above.
      • Discuss
    • 6. While measuring with a metallic tape of 30 m length pull should be applied

    • Options
    • A. 1 kg
    • B. 2 kg
    • C. 3 kg
    • D. 4 kg
      • Discuss
    • 7. To set out a parallel from a given inccessible point to a given line AB, the following observations and made
      Distance AB and angle PAM = a and angle PBA = b are measured where Mis a point on the line BA produced. The perpendicular to the desired parallel line from A and B are :

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. The bearing of AB is 190° and that of CB is 260° 30'. The included angle ABC, is

    • Options
    • A. 80° 30'
    • B. 99° 30'
    • C. 70° 30'
    • D. none of these
      • Discuss
    • 9. The ratio of the radius and apex distance of a curve deflecting through ?°, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 10. Surveys which are carried out to depict mountains, rivers, water bodies, wooded areas and other cultural details, are known as

    • Options
    • A. cadastral surveys
    • B. city surveys
    • C. topographical surveys
    • D. guide map surveys
    • E. plane surveys.
      • Discuss

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