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  • Question

  • It ? is the probable error of an observed bearing of a line of length l, the error over the whole length of the traverse of n lines of length l is


  • Options
  • A. l n
  • B. It ? is the probable error of an observed bearing of a line of length l, the error over the whole le n
  • C. ? It ? is the probable error of an observed bearing of a line of length l, the error over the whole le
  • D. It ? is the probable error of an observed bearing of a line of length l, the error over the whole le ? n

  • Correct Answer
  • l n 

    • Surveying problems

    Search Results

    • 1. If the area calculated form the plan plotted with measurements by an erroneous chain, accurate area of the plan is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E. none of the above
      • Discuss
    • 2. For a curve of radius 100 m and normal chord 10 m, the Rankine's deflection angle, is

    • Options
    • A. 0°25'.95
    • B. 0°35'.95
    • C. 1°25'.53
    • D. 1°35'.95
    • E. 2°51'.53.
      • Discuss
    • 3. Keeping the instrument height as 1 m, length of staff 4 m, the up gradient of the ground 1 in 10, the sight on the up slope must be less than

    • Options
    • A. 25 cm
    • B. 20 m
    • C. 45 m
    • D. 10 m
      • Discuss
    • 4. A uniform slope was measured by the method of stepping. If the difference in level between two points is 1.8 m and the slope distance between them is 15 m, the error is approximately equal to

    • Options
    • A. cumulative, + 0.11 m
    • B. compensating, ± 0.11 m
    • C. cumulative, - 0.11 m
    • D. none of these
      • Discuss
    • 5. Measuring with a 30 m chain, 0.01 m too short, introduces

    • Options
    • A. positive compensating error
    • B. negative compensating error
    • C. positive cumulative error
    • D. negative cumulative error.
      • Discuss
    • 6. Metric chains are generally available in

    • Options
    • A. 10 m and 20 m length
    • B. 15 m and 20 m length
    • C. 20 m and 30 m length
    • D. 25 m and 100 m length
      • Discuss
    • 7. Two hill tops A and B 20 km apart are intervened by a third top C. If the top most contour of the three hill tops are of the same value, state whether the line of sight AB

    • Options
    • A. passes clear of hill top C
    • B. passes below the hill top C
    • C. grazes the hill top C
    • D. none of these.
      • Discuss
    • 8. If the angular measurements of a traverse are more precise than its linear measurements, balancing of the traverse, is done by

    • Options
    • A. Bowditch's rule
    • B. Transit rule
    • C. Empirical rule
    • D. all of the above.
      • Discuss
    • 9. The desired sensitivity of a bubble tube with 2 mm divisions is 30". The radius of the bubble tube should be

    • Options
    • A. 13.75 m
    • B. 3.44 m
    • C. 1375 m
    • D. none of these.
      • Discuss
    • 10. Setting out a curve by two theodolite method, involves

    • Options
    • A. linear measurements only
    • B. angular measurements only
    • C. both linear and angular measurements
    • D. none of these.
      • Discuss

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