Civil Engineering - Surveying

Exercise : Surveying - Section 7

21.

Staff readings on pegs x and y from X station are 1.755 m and 2.850 m, and from station Y on staff head at Y and X are 0.655 m and 1.560 m. If reduced level of X is 105.5 m, the reduced level of Y is

104.0 m

104.5 m

105.0 m

105.5 m

Answer: Option

Explanation:

No answer description is available. Let's discuss.

22.

The constant vertical distance between two adjacent contours, is called

horizontal interval

horizontal equivalent

vertical equivalent

contour interval

contour gradient.

Answer: Option

Explanation:

No answer description is available. Let's discuss.

23.

The reduced level of a floor is 99.995 m, the staff reading on the floor is 1.505 m. If the inverted staff reading against the roof is 1.795 m, the floor level below the slab, is

3.290 m

3.300 m

3.275 m

2.790 m

Answer: Option

Explanation:

No answer description is available. Let's discuss.

24.

The correction to be applied to each 30 metre chain length along θ° slope, is

30 (sec θ - 1) m

30 (sin θ - 1) m

30 (cos θ - 1) m

30 (tan θ - 1) m

30 (cot θ - 1) m.

Answer: Option

Explanation:

No answer description is available. Let's discuss.

25.

If F is the pull applied at the ends of tape in kg, l is the length of tape between end marks in metres, w is the weight of the tape in kg per metre run, then sag correction