A, C and D are three triangulation shore signals whose positions were determined by the angle ACD = 150° and the sides AC is 810m and CD = 720m. A sounding at B was taken from the boat and the angle ABC = 39°30' and angle CBD = 33°30' were measured simultaneously by sextants from the boat to the three signals on the shore. Find the angle CDB.

Q: Q4: a. The following readings were observed successfully with a leveling instrument. The instrument…

A:

Q: A space force is directed from M(5,0,4) to (N(2,3,-1). If ita magnitude is 30ON, then its…

A: To find x component of 300N force

Q: SITUATION 3. In the two-peg of a dumpy-level, the following observations are taken, Instrument near…

A: Given:When instrument was placed near A:hA=1.501hB=2.022When instrument was placed near…

Q: (8) A tacheometer and the following staff vertically held was set up at a station C readings were…

A:

Q: The following consecutive staff readings were taken with level and 5m staff at 70 m interval. The…

A: Solution: Given: Station BS IS FS 1 1.25     2   2.187   3     2.05 4 3.12     5   1.57…

Q: In item No. I what is the length of e or CP?  a)10,189,89m         b) 9,189.89m              c)…

A: To find length of cp

Q: Following observations were taken for determining the R.L. of station A. Instrument -station Height…

A:

Q: Which one of the following is a significant error in leveling? а. Таре O b. Average level C. Reduced…

A: There are many causes of errors in levelling, among the above options given the significant error is…

Q: In AHJK, PM I JK as shown. Find PMK. 76 10' 25°27 K P. O PMK = 25°27' %3D O PMK = 154°33' %3D O PMK…

A:

Q: A differential leveling circuit began on BM Hydrant (orthometric height 5869.31 ftft) and closed on…

A: BM Hydrant = 5869.31 ft BM Rock = 5830.03 ft

Q: A stadia rod held at point B was observed from station A (elev A = 210.70m) using an automatic…

A:

Q: Determine elevation the top of a tower from the following observation.. Inst. St. Target Reading on…

A: Answer  The elevation of the top of a tower is 107.617     The solution is shown below

Q: Sta. B.S. Н. F.S. Elev. В.М.1 1.234 42.390 T.P.1 0.965 2.732 T.P.2 2.332 3.642 T.P.3 0.682 3.224…

A:

Q: Assume the separation for A, B, and C. With the instrument midway between A and B the readings are A…

A:

Q: Q#15: The following is the data relative to observed stations made on vertically held staff with a…

A: Constant of instrument = 100

Q: Direct Differential Leveling Data: Staff Reading at Level at A K 1.115 m 0.989 m 15 2.113 m 1.867m…

A: Dear student as per bartleby guidelines we are supposed answer only first 3 sub parts. Kindly repost…

Q: STA BS HI FS ELEV BM1 2.883 130.016 127.133 ТР1 2.743 129.710 3.049 126.967 ТР2 2.855 129.876 2.690…

A: Leveling is the linear measurement process in which we establish the leveling instrument and…

Q: In carrying out the permanent adjustments of a level by, the following observations were made:…

A: Data given Instrument set up 1 Instrument set up 2

Q: Q.1 A line of level is run from B.M.1 (elevation=106.40m) to B.M. 2(elevation=110.50m). The field…

A: Given B.M.I (elevation)=106.40m B.M. 2 (elevation)=110.50m To determine Reduce the level of point 2,…

Q: H.W/ the following details refer to reciprocal levels taken with a level. Instrument at station…

A: In curvature, the points are lower while in refraction the points are higher than the actual. So,…

Q: Q#08: In order to locate the position (P) of a sounding boat, the angles APB & BPC subtended at P by…

A: The three-point problem-  Given three points A.B and C representing shore stations, and the values…

Q: A differential leveling circuit began on BM Hydrant (orthometric height 5869.31 ft) and closed on BM…

A: BM Hydrant BM Rock Readings (in feet) given in the order taken are, 2.68 (+S) on BM Hydrant, 5.59…

Q: While leveling across a river, the staves readings held at (R) and (S) from the instrument stationed…

A: Reciprocal levelling is used to determine the true difference in elevations of two points that are…

Q: B: Find the elevation of point (B) from the figure (2) that showing below : Fig. (2) 1.48 m IR Elev.…

A: Draw the given figure:-

Q: A differential leveling circuit began on BM Hydrant (orthometric height 5869.31 ft) and closed on BM…

A: BM Hydrant =5869.31 ftBM Rock (orthometric height 5830.03 ft). Readings  2.28 (+S) on BM Hydrant,…

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: A reciprocal leveling is observed across a wide river and the reciprocal level readings were taken…

A: Given:- The reciprocal level readings were taken between points A and B  When the instrument is at…

Q: Determine the displacement at D of the steel beam as shown. Take E = 29(103) ksi, I = 800 in4.

A: GIVEN- P=6KM=80K-ftE=29×103 KsiI=800 in4

Q: The following consecutive readings were taken with a leveling instrument at intervals of 25 m.…

A: There are two methods of solving this problem. 1.Height of instrument method (HI method) 2.…

Q: 2) Given the following data: Table 1: Differential Leveling Observations Station A ΤΡΙ B TP2 A…

A: To Determine :- a. What is the loop misclosure? b. What is the corrected elevation of point B using…

Q: B. Double-Rodded Leveling 3. Complete differential level notes for the information shown and perform…

A: Height of instrument = B.M + B.S  Reduced level = H.I - F.S/I.S

Q: В.М I.S F.S H.I ELeve.(m) Rem 1.34 1.33 0.95 1.139 1.319 1.48 1.33 1.37

A:

Q: The sum of negative departures exceeds that of the positive departures by 0.47 meter. The sum of the…

A:

Q: Situation; The angles about polnt have the following observed values: 87°0750", 125 1720", and…

A:

Q: A dumpy level is setup at one end of a line 120m long for the purpose of determining the…

A: The stadia interval factor is given by, k=Ds where D = horizontal distance s = stadia intercept…

Control Survey and Geodetic reductions

Control surveys or survey controls are used to establish reference points as a basis for various construction activities. Vertical and horizontal control points are to be established in a control survey to increase accuracy. After establishing the control points, all other types of surveys such as topographic, right-of-way, aerial mapping, construction layout, boundary surveys, and utility mapping can be worked upon so that control networks can be formed. The place from which the observations are made is called a survey station.