Bowditch rule is applied to_________________?

Related Mcqs:

1. If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference to_________________?

   1. altitude bubble on index frame
   2. altitude bubble on index frame if it is to be used as a level
   3. altitude bubble on telescope
   4. altitude bubble on telescope if it is to be used as a level
   The correct answer is?

   A. only (1)
   B. both (1) and (4)
   C. only (3)
   D. both (2) and (3)

2. As applied to staff readings, the corrections for curvature and refraction are respectively The above table shows a part of a level field book. The value of X should be________________?

   A. 98.70
   B. 100.00
   C. 102.30
   D. 103.30

3. Transit rule of adjusting the consecutive coordinates of a traverse is used where________________?

   A. linear and angular measurements of the traverse are of equal accuracy
   B. angular measurements are more accurate than linear measurements
   C. linear measurements are more accurate than angular measurements
   D. all of the above

4. The allowable length of an offset depends upon the______________?

   A. degree of accuracy required
   B. method of setting out the perpendiculars and nature of ground
   C. scale of plotting
   D. all of the above

5. Which of the following errors cannot be eliminated by taking both face observations ?

   A. error due to horizontal axis not being perpendicular to the vertical axis
   B. index error i.e. error due to imperfect adjustment of the vertical circle vernier
   C. error due to non-parallelism of the axis of telescope level and line of collimation
   D. none of the above

6. For which of the following permanent adjustments of theodolite, the spire test is used ?

   A. adjustment of plate levels
   B. adjustment of line of sight
   C. adjustment of horizontal axis
   D. adjustment of altitude bubble and vertical index frame

7. The difference between a level line and a horizontal line is that_______________?

   A. level line is a curved line while hori-zontal line is a straight line
   B. level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line
   C. horizontal line is normal to plumb line while level line may not be normal to the plumb line
   D. both are same

8. A series of closely spaced contour lines represents a___________________?

   A. steep slope
   B. gentle slope
   C. uniform slope
   D. plane surface

9. Horizontal distances obtained by thermometric observations_________________?

   A. require slope correction
   B. require tension correction
   C. require slope and tension corrections
   D. do not require slope and tension corrections

10. The methods used for locating the plane table stations are_______________?

    1. radiation
    2. traversing
    3.intersection
    4. resection
    The correct answer is

    A. (1) and (2)
    B. (3) and (4)
    C. (2) and (4)
    D. (1) and (3)