In a hydrographic survey three stations ABC were established. Stations A and B are on the shoreline and station C is on the sea marked by a buoy. The latitude and departure of the lines are computed as follows: Line Latitude (m) Departure (m) + 159.40 - 326.16 АВ +136.95 BC +153.82 СА +166.75 - 290.77 24. Determine the bearing of line AB a) N 50o30' E b) N 40°40' E c) S 34°45' E 25. Determine the bearing of line BC a) S 25°15 E b) S 45°23' E c) N 23°34' W 26. Determine the bearing of CA a) N 56°23' W b) N 45°12' E c) N 60°10' W

In a hydrographic survey three stations ABC were established. Stations A and B are on the shoreline and station C is on the sea marked by a buoy. The latitude and departure of the lines are computed as follows: Line Latitude (m) Departure (m) + 159.40 - 326.16 АВ +136.95 BC +153.82 СА +166.75 - 290.77 24. Determine the bearing of line AB a) N 50o30' E b) N 40°40' E c) S 34°45' E 25. Determine the bearing of line BC a) S 25°15 E b) S 45°23' E c) N 23°34' W 26. Determine the bearing of CA a) N 56°23' W b) N 45°12' E c) N 60°10' W

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Three shore stations C, D and E are triangulation observation points with CD=615 m. and DE=625m. Angle EDC is 125°. A hydrographer at point D wanted to know his position with respect to the triangulation points, he measured angle CBD = 43° and DBE = 42°30'. Find the following: a. angle DCB b. angle CDB c. distance BC
The given data were obtained from a hydrographic survey notes. Line AB was established along the shore line tobe a base line for locating sounding points. The azimuth and distance of line AB are recorded as 230 deg 30' and185.50m respectively. A sounding point P on the water was observerfrom station A and the azimuth was found tobe 280 deg 10' while the azimuth of point P observed from station B was 350 deg 15'. Compute the distance ofpoint P from station B.
In a hydrographic survey three stations ABC were established. Stations A and B are on the shoreline and station c is on the sea marked by a buoy. The latitude and departure of the lines are computed as follows: Line Latitude (m) Departure (m) AB вс + 159.40 - 326.16 +136.95 27 - 30, thank you +153.82 CA +166.75 - 290.77 24. Determine the bearing of line AB a) N 50030' E N 40 40' E c) S 34°45' E 25. Determine the bearing of line BC S 25°15 E b) S 45°23' E c) N 23°34' W 26. Determine the bearing of CA a) N 56°23' W b) N 45°12' E N 60°10' W 27. Calculate the interior angle at A a) 80°23' b) 70°34' c) 79o10' 28. Find the interior angle at B a) 69°45' b)65°55' c) 57°23' 29. Determine the interior angle at C a) 24°46' b) 34°55' c) 38°12' 30. Compute the area enclosed by the traverse. The area is nearest to a) 35,345.56 sqm b) 33,567.45sqm c)34,587.48 sqm
8. A civil Engineer proceeded to do the stadia survey work to determine the topography of a certain area. The transit was setup at a point A, with the line of sight horizontal, took rod readings from the rids placed at B and C which is 200 m and 60 m from A respectively. Compute the stadia interval factor. Stadia intercept at 8 = 2.001 m and the stadia intercept at C is 0.600 m. a. 100.00 -b. 101.28 C. 99.93 d. 110.17
Situation No. 2: A and B are two points locatcd on cach bank of a river and near the abutments of a proposed bridge. To determine its distance, a baseline CD 180m long was established on one bank of the river and the transit was set up at station C and D and the azimuth were taken as follows. Line С -D С -А Azimuth 1.) Find the distance AD 2.) Find the distance BD 3.) Find the distnace AB 4.) Find the area of each triangle and the total area 210° 00' 260° 00' С -В 290° 00' D- A 301° 00' D - B 315° 00'
1 - A, B and C are three triangulation stations whose positions were determined by the angle measured at station B to A and C, respectively. The distance BC was measured to be 1200 m long and CD is 965 m long. The azimuth of C from B is 140° and that of A from B is 286°30’. A sounding at F (south of three stations) was taken from a boat and the angle BFA and BFC were measured simutaneously by two sextants from the boat to the three stations ABC as 22°30’ and 28°15’, respectively. How far is F from B?
Problem: The given data were obtained from hydrographic survey notes of a harbor. 1. Plot the data properly. 2. Locate sounding points 1 and 2 by computing the distances from where these points were observed. Azimuth fom South Station Depth of Occupied Point Observed Distance water 210.23m 295°30 NA SP 1 not observed 338.10 2.50m SP2 not observed 350 20 2.75m 210.23m 115°30 NA SP1 not observed 50,30 2.25m SP2 not observed 77°40 3.10m Note: SP = sounding point
LINE LENGTH IN METERS BEARING AB 82.62 S60°43'E BC 111.41 N52°41'W CD 100.66 S71°43'W DE 62.97 N75°44'W EA 181.24 S85°23'E Using TRANSIT RULE, complete the table of balancing the traverse. -Retain 3 decimal places.
The given data were obtained from a hydrographic survey notes. Line AB was established along the shore line to be a base line for locating sounding points. The azimuth and distance of line AB are recorded as 230 deg 30' and 185.50m respectively. A sounding point P on the water was observe from station A and the azimuth was found to be 280 deg 10' while the azimuth of point P observed from station B was 350 deg 15'. Compute the distance of point P from station B. Select the correct response O 139.23m O 150.12m O 147.15m O 140.40m
Line AB BC CD DA A clockwise traverse ABCDEA was surveyed Find the length and direction of line AD Length(m) 140.24 99.27 B Direction 77°55'30" 173°37'20" E D D 137.137 11.027 L sine L 101.0 29.337 -98.656 L cose AD=151.515m,0=257°55'37" O AD=151.515m,0=77°55'37" O AD=145.735m,0=257°55'37" AD=144.735m,e=257°55'37" O AD=144.735m,0=77°55′37" O
Problem 4.11 A profile leveling was conducted by a surveyor. Observation was recorded and tabulated below. STA BS IS FS ELEV BM1 3.542 m 153.75m 0+00 7.193 m 2+00 9.826 m 4+00 5.320 m TP1 2.538 m 8.321 m 6+00 1.895 m 8+00 2.742 m 10+00 1.451 m 12+00 7.487 m BM2 4.356 m Determine the elevation of each station and the error of closure in measurement if the elevation of BM2 is 147.139m.
Determine the elevation of station BM1 using c = 0.65 and k = 100. Backsight Foresight DE ELEV Station Angle RR VD IS Angle RR VD BM1 1.742 11° 13' 2.2 2 2.072 24° 25' 0.7 2.42 5° 7' |1.23 3 |1.22 -10° 20' 1.74 0.94 |-14° 15' 1 4 1.051 18° 55' |1.699 100