ii) For the lines shown in Table Q4 convert the angles (WCB to QB or vice versa) as required in the Table Q4.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Ineed answer for this please
3
i) In a theodolite surveying, two instruments are used to measure the height of
a tower. Two instruments are on a horizontal surface and the staff readings
on BM for them are 2.95 m and 1.45 m. The reduced level of BM is 100 m.
Angles measured are 35° and 15°. The distance between to instruments is
100 m, calculate the reduced level of tower top and draw the suitable figure
showing this problem setup.
Hint: D = dxtan(x₂)+(hs₂-hs₁) H = D x tan(x₁) + hs₁
tan(x₂)-tan(x₂)
ii) For the lines shown in Table Q4 convert the angles (WCB to QB or vice
versa) as required in the Table Q4.
Table Q4
Line
WCB
QB
Line
WCB
QB
AB
200° 45' 35"
DE
N 45°25'25" W
BC
S 15° 20' 20" E
EF
130° 30' 30"
CD
50° 15' 35"
FA
S 45°25'25" W
Transcribed Image Text:3 i) In a theodolite surveying, two instruments are used to measure the height of a tower. Two instruments are on a horizontal surface and the staff readings on BM for them are 2.95 m and 1.45 m. The reduced level of BM is 100 m. Angles measured are 35° and 15°. The distance between to instruments is 100 m, calculate the reduced level of tower top and draw the suitable figure showing this problem setup. Hint: D = dxtan(x₂)+(hs₂-hs₁) H = D x tan(x₁) + hs₁ tan(x₂)-tan(x₂) ii) For the lines shown in Table Q4 convert the angles (WCB to QB or vice versa) as required in the Table Q4. Table Q4 Line WCB QB Line WCB QB AB 200° 45' 35" DE N 45°25'25" W BC S 15° 20' 20" E EF 130° 30' 30" CD 50° 15' 35" FA S 45°25'25" W
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