An angle has been measured six individual times with the followingresults: a.) 46° 21' 45"; b.) 46° 22' 10"; c.) 46° 22' 05"; d.) 46° 22' 00";e.) 46° 21' 45"; f.) 46° 21' 55". What is the most probable value of theangle?А. 46° 21' 45"В. 46° 21' 50"C. 46° 21' 57"D. 46° 22' 00"

Answered: Image /qna-images/answer/c792031c-c066-411b-9b60-e8ce47411a63.jpg

Answered: An angle has been measured six…

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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The following data were obtained by stadia observations: vertical angle is +4°17’, upper stadia hair and lower stadia hair readings are 1.957 m and 1.485 m, respectively. The stadia interval factor is known to be 100.02 and C is 0.321 m. The height of the instrument above the instrument station (point A) is 1.473 m and rod reading is taken at 1.874 m. Determine the following: elevation of the point sighted (point B) if the elevation of point A is 517 m. ANSWER: ___________ Difference in elevation between points A and B. ANSWER: ___________________
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21) Compute the most probable value, standard deviation, and 95% probable error for the following set of angle observations. 116°13'46",116°13'46",116°13'48",11613'44",116'13'50" MPV = 0= E95% =
Problem 1 Based on the following survey data an angle is measured repeatedly using the same equipment and procedure. If the probability of error is 50%, determine (a) the most probable angle and (b) its relative precision; Trials Measurements 1234567 2 4 5 7 162°20'00" 162°21'20" 162°21'40" 162°20'40" 162°19'40" 162°21'25" 162°22'10"
2. The following are the observations made on the same angle: 47°26'13"| 47°26'18" | 47°26'10" | 47°26'15" | 47°26'16" | 47°26'12" 47°26'09"| 47°26'15" 47°62'13" | 74°26'20" | 47°26'14" | 47°26'18" Determine: d. The standard error of the mean The 95% confidence limits using t = 2.26. Use the formula е. UC = x – tSg LC = x – tSg
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A line of three-wire differential levels goes from benchmark Gloria to benchmark Carey. The length of the line was determined to be 2097 m. The instrument had a stated compensator accuracy of pm 1.4 mm/ km. The instrument–rod combination had an estimated reading error of 0.4 mm per 40 m. Sight distances were kept to approximately 50 5 m. If the observed difference in elevation is 15.601 m, what is the estimated error in the final elevation difference? If benchmark Gloria had a fixed elevation of 231.071 m and Carey had a fixed elevation of 246.660 m, did the job meet acceptable closure limits at a 95% level of confidence? Justify your answer statistically.
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
From the given data of differential leveling as shown in the tabulation: Find the difference in elevation of station 7 and station 5: pls answer in complete solution. pls answer in 2 DECIMAL PLACES

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An angle has been measured six individual times with the following results: a.) 46° 21' 45"; b.) 46° 22' 10"; c.) 46° 22' 05"; d.) 46° 22' 00"; e.) 46° 21' 45"; f.) 46° 21' 55". What is the most probable value of the angle? A. 46° 21' 45" B. 46° 21' 50" C. 46° 21' 57" D A60 22' 00"