After fixing the plane table to the tripod, the main operations which are needed at each plane table station are ______________ ?

Related Mcqs:

1. If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will_________________?

   A. increase
   B. decrease
   C. not change
   D. either ‘a’ or ‘b’

2. The size of a plane table is________________?

   A. 750 mm x 900 mm
   B. 600 mm x 750 mm
   C. 450 mm x 600 mm
   D. 300 mm x 450 mm

3. The instrument used for accurate centering in plane table survey is________________?

   A. spirit level
   B. alidade
   C. plumbing fork
   D. trough compass

4. Which of the following methods of plane table surveying is used to locate the position of an inaccessible point ?

   A. radiation
   B. intersection
   C. traversing
   D. resection

5. 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)

6. If the R.L. of a B.M. is 100.00 m, the back- sight is 1.215 m and the foresight is 1.870 m, the R.L. of the forward station is_________________?

   A. 99.345 m
   B. 100.345 m
   C. 100.655m
   D. 101.870m

7. If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be_______________?

   A. true R.L
   B. more than true R.L
   C. less than true R.L
   D. none of the above

8. The difference of levels between two stations A and B is to be determined. For best results, the instrument station should be_______________?

   A. equidistant from A and B
   B. closer to the higher station
   C. closer to the lower station
   D. as far as possible from the line AB

9. The process of determining the locations of the instrument station by drawing re sectors from the locations of the known stations is called_________________?

   A. radiation
   B. intersection
   C. resection
   D. traversing

10. If the intercept on a vertical staff is ob-served as 0.75 m from a tacheometer, the horizontal distance between tacheometer and staff station is________________?

    A. 7.5 m
    B. 25 m
    C. 50
    D. 75 m