exceeded? b. How accurately should each 30.000 m distance have be measured so that the estimated total error would not exceed 0.050 m in a total distance of 600 m2 (surveying probable error with a theodolite 5. The interior angles of a nine-sided polygon are being measured instrument for measuring angles). Specifications require that the total estimated may not exceed ± 60 seconds. How accurately must each angle be measured?

exceeded? b. How accurately should each 30.000 m distance have be measured so that the estimated total error would not exceed 0.050 m in a total distance of 600 m2 (surveying probable error with a theodolite 5. The interior angles of a nine-sided polygon are being measured instrument for measuring angles). Specifications require that the total estimated may not exceed ± 60 seconds. How accurately must each angle be measured?

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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This subject is surveying lecture about errors and mistakes. Please show complete solutions of no. 4 & 5.
This subject is surveying lecture about errors and mistakes. please show a complete solutions.
1. The surveying team at UTM can make taping measurements with an error of ±0.03 ft per 100-ft tape length. What is the error associated with taped distance of 700 ft? 2. Since the mean is computed from individual observed values, each of which contains an error, the mean is also subject to error. We can assume that the error or the mean is =Em= Eseries/n u What will be the 90% error of the mean for a 25 observations having a standard deviation of +0.0495 ft 3. Determine the weighted mean for the following angles 88° 54'21", wt 3, 88° 54'55", wt 5, 88° 54'11", wt 6, 88° 53'58", wt 4,
Determine: (a) The probable error of the mean in Taping Operation 1. (b) The probable error of the mean in Taping Operation 2. (c) The combined most probable measurement of the frontage, in meters. Answer these questions using this taping scenario. Two surveying tapes were used in measuring the frontage of an open field. The resulting measurements are as follows: Taping Operation 1 Taping Operation 2 300.977m 300.761m 300.415m 300.772m 299.743m 300.776m 299.994m 300.713m
Elementary Surveying
Probable Error - a. b. Example 2 PLANE SURVEYING SU1200 ASSIGNMENT 1 1. The sides of a closed figure have been measured and found to have a total length of 1018.910 m. If the error in the measurement is estimated to be 0.073 m, what is the accuracy ratio of the work? 2. A random error of ± 0.004 m is estimated for each of 22 length measurements (which are to be added together to get the total length). what is the estimated total error? what is the probable total error if the random error is ± 0.006 m per length? 3. A surveying crew or party is capable of taping distances with an estimated probable error of ± 0.005 for each 30.000 m distance. What estimated total error should be expected if a distance of 1400 m is measured? 4. It is desired to tape a distance of 360 m with a total estimated probable error of not more than ± 0.006 m. a. How accurately should 30.000 m distance be measured so that the permissible value is not exceeded? b. How accurately should each 30.000 m distance have…
1) 2 points B & C were observed from point A where the instrument was set up at a height of 1.25m. Points B & C are ahead of point A. The surveyor used an internally focusing telescope with a stadia interval factor of 100. The table below shows the data recorded as observed for points B & C. Answer the following. (Show complete figures and solutions) a) What is the stadia constant of the instrument? b) What is the slope distance between the telescope at point A and the rod reading at point B? c) What is the difference in elevation between point B & C? d) What is the slope distance between the ground surface at point B and the ground surface at C? e) What is the elevation of point C if point A is at an elevation of +0316.15m above mean sea level? - 1 attachment Vertical Stadia Hair Readings ROD/Point Angle Upper Middle Lower В -25°15' 2.316 1.877 1.438 -45°57' 3.333 2.011 0.689
Q.2. A distance AB is observed repeatedly using the same equipment and procedures, and the results, in meters, are listed. 65.401; 65.400; 65.402; 65.396; 65.406; 65.401; 65.396; 65.401; 65.405; 65.404; 65.398 and 65.408 d} Determine the 90% error limits and list the percentage of values that fall within this range, e) Determine the 95% error limits and list the percentage of values that fall within this range. 1
P Give suitable examples as you discuss how errors in surveying activities are classified. The three angles of a triangle were measured using a triangulation scheme, and their mean values were reported as 50° 48′ 18′′, 64° 2036", and 64° 5100".Each of these means has a standard deviation of 4 according to analysis of each set.The angles were measured again at a later time under better lighting, resulting in mean values of 64° 20′ 39", 64° 50' 58", and 50° 48' 20" prime prime Each value's standard deviation was 2 n. Determine the most probable values of the angles
PLANE SURVEYING SU1200 ASSIGNMENT 1 1. The sides of a closed figure have been measured and found to have a total length of 1018.910 m. If the error in the measurement is estimated to be 0.073 m, what is the accuracy ratio of the work? 2. A random error of ± 0.004 m is estimated for each of 22 length measurements (which are to be added together to get the total length). a. what is the estimated total error? b. what is the probable total error if the random error is ± 0.006 m per length? 3. A surveying crew or party is capable of taping distances with an estimated probable error of ± 0.005 for each 30.000 m distance. What estimated total error should be expected if a distance of 1400 m is measured? 4. It is desired to tape a distance of 360 m with a total estimated probable error of not more than ± 0.006 m. a. How accurately should 30.000 m distance be measured so that the permissible value is not exceeded? b. How accurately should each 30.000 m distance have be measured so that the…
Surveying!
2 points B & C were observed from point A where the instrument was set up at a height of 1.25m. Points B & C are ahead of point A. The surveyor used an internally focusing telescope with a stadia interval factor of 100. The following data was recorded as observed for points B & C.(a) What is the stadia constant of the instrument?(b) What is the slope distance between the telescope at point A and the rod reading at point B?(c) What is the difference in elevation between point B & C?(d) What is the slope distance between the ground surface at point B and the ground surface at C?(e) What is the elevation of point C if point A is at an elevation of +0316.15m above mean sea level?