Before using the level device in any leveling procedure it must be leveled which means: The Horizonal Circle of the level is positioned in a plane perpendicular to the vertical The Horizonal Circle of the level is positioned in a vertical plane passing through the optical axis of the level The Horizonal Circle of the level is positioned in a horizontal plane

Q: Q- In a leveling work, sum of the Back Sight (B.S.) and Fore Sight (F.S.) have been found to be…

A: A leveling work- Sum of back sights- ∑BS=3.085 m, Sum of fore sights- ∑FS=5.645 m. The reduced level…

Q: If a plus sight of 1.097 m is taken on BM A, elevation 305.348 m, and a minus sight of 0.832 m is…

A: Given: The back sight on A is 1.097 m. The elevation is 305.348 m. The foresight on X is 0.832 m.

Q: Having found Fcp in the analysis of joint C, there are now only two unknown forces acting on joint…

A: Consider moment about B; ∑MB=0(-390×8.50)-FDE(8.50×tan30°)=0FDE=-675.50 lb

Q: Calculate the horizontal distance between point A and B if a slope distance of 3,562.15 feet is…

A: The values given  in the question are as follows: Slope distance between A and B(s)=3562.15 ft…

Q: The instrument used was a transit with an internal focusing telescope and a stadia interval factor…

A: Solution: θ1=-14°45'l1=kSACosθ1l1=99×1.82×Cos-14°45'l1=179.24H1=l1Cosθ1H1=168.5…

Q: Which of the following may cause errors in leveling measurement? (Multiple choice) (Multiple choice)…

A: There are many errors in levelling measurement :- From the the given option.

Q: 35. When setting out design points from control points using a total station, horizontal orientation…

A: Design point- The point over which total station is set up. Control point- A control point is known…

Q: To test its line of sight adjustment, a level is set up near C (elev. 193.436 m) and then near D.…

A: station C elevation is given as 193.436 mwhen setup is near C: station C reading =1.315 m…

Instruments for Surveying

Surveying is the practice that determines the relative three-dimensional positions of many different points on the earth’s surface. There are various instruments used in Surveying like Theodolites, Total station, Tripod stands, Plane table, etc. for measuring horizontal angle, vertical and sloping angle, which are very useful for giving accurate and precise measurement.