The R.L, of the point A which is on the floor is 100 m and back sight reading on A is 2.455 m. If the foresight reading on the point B which is on the ceiling is 2.745 m, the R.L. of point B will be_______________?

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. 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

3. 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

4. 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

5. If the reduced bearing of a line AB is N60°W and length is 100 m, then the latitude and departure respectively of the line AB will be________________?

   A. +50 m, +86.6 m
   B. +86.6 m, -50 m
   C. +50m, -86.6 m
   D. +70.7 m,-50 m

6. For accurate work, the steel band should always be used in preference to chain because the steel band______________?

   A. is lighter than chain
   B. is easier to handle
   C. is practically inextensible and is not liable to kinks when in use
   D. can be easily repaired in the field

7. A telescope is said to be inverted if its______________?

   A. vertical circle is to its right and the bubble of the telescope is down
   B. vertical circle is to its right and the bubble of the telescope is up
   C. vertical circle is to its left and the bubble of the telescope is down
   D. vertical circle is to its left and the bubble of the telescope is up

8. The sensitivity of a bubble tube can be increased by________________?

   A. increasing the diameter of the tube
   B. decreasing the length of bubble
   C. increasing the viscosity of liquid
   D. decreasing the radius of curvature of tube

9. An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as__________________?

   A. contour line
   B. horizontal equivalent
   C. contour interval
   D. contour gradient

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

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