Q1) Choose A or B A/ A leveling process has conducted to construct a tunnel. The following staff readings were observed successively with a level: (0.440), 0.625, 0.846, 0.975, 1.085, (0.685), 0.783, 0.926. The readings between brackets are back sights, and all the readings are inverted except at the first and last points. Enter the above readings in a page of a level book and calculate the R.L of points if the first reading was taken with a staff held on a bench mark of 50.800 m. (Use height of instrument method).
Q1) Choose A or B A/ A leveling process has conducted to construct a tunnel. The following staff readings were observed successively with a level: (0.440), 0.625, 0.846, 0.975, 1.085, (0.685), 0.783, 0.926. The readings between brackets are back sights, and all the readings are inverted except at the first and last points. Enter the above readings in a page of a level book and calculate the R.L of points if the first reading was taken with a staff held on a bench mark of 50.800 m. (Use height of instrument method).
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Q1) Choose A or B
A/A leveling process has conducted to construct a tunnel. The following staff readings were
observed successively with a level: (0.440), 0.625, 0.846, 0.975, 1.085, (0.685), 0.783,
0.926.
The readings between brackets are back sights, and all the readings are inverted except at the
first and last points. Enter the above readings in a page of a level book and calculate the R.L
of points if the first reading was taken with a staff held on a bench mark of 50.800 m. (Use
height of instrument method).
B/ In a leveling process along a longitudinal suggested profile as shown in table below,
known that the designed elevations of the points A, E, H respectively was ( 31.5 , 29.5 ,
30) m, the project required to connect these points with a straight line, according to these
information , calculate the FILL in each point.
Point
B.S
I.F.S
F.S
Distance ,m
Remark
A
1.25
В
2.18
50
C
1.78
1.93
100
1.91
1.27
150
E
1.86
200
29.02m
F
1.61
250
1.43
300
H
2.7
350
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