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

Related Mcqs:

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

   1. levelling
   2. orientation
   3. centering
   The correct sequence of these operations is

   A. (1), (2),(3)
   B. (1), (3), (2)
   C. (3), (1), (2)
   D. (2), (3), (1)

2. 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)

3. 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

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

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

5. Local attraction in compass surveying may exist due to________________?

   A. incorrect levelling of the magnetic needle
   B. loss of magnetism of the needle
   C. friction of the needle at the pivot
   D. presence of magnetic substances near the instrument

6. The cross hairs in the surveying telescope are placed_____________?

   A. midway between eye piece and objec¬tive lens
   B. much closer to the eye-piece than to the objective lens
   C. much closer to the objective lens than to the eye piece
   D. anywhere between eye-piece and objective lens

7. The type of surveying which requires least office work is________________?

   A. tacheomefry
   B. trigonometrical levelling
   C. plane table surveying
   D. theodolite surveying

8. The angle of intersection of the two plane mirrors of an optical square is______________?

   A. 30°
   B. 45°
   C. 60°
   D. 90°

9. The process of turning the telescope about the vertical axis in horizontal plane is known as______________?

   A. transiting
   B. reversing
   C. plunging
   D. swinging

10. 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