7. A horizontal collimation test is performed on an automatic level. With the instrument setup at point 1, the rod reading at A was 5.630 ft, and to B was 5.900 ft. After moving and leveling the instrument at point 2, the rod reading to A was determined to be 5.310 ft and to B 5.560 ft. As shown in the following figure, the distance between the points was 100 ft. What is the collimation error of the instrument, and the corrected reading to A from point 2? Rg. Line of sight - Horizontal 24 First setup Line of sight Horizontal - B Second setup 100 ft 100 ft 100 ft

7. A horizontal collimation test is performed on an automatic level. With the instrument setup at point 1, the rod reading at A was 5.630 ft, and to B was 5.900 ft. After moving and leveling the instrument at point 2, the rod reading to A was determined to be 5.310 ft and to B 5.560 ft. As shown in the following figure, the distance between the points was 100 ft. What is the collimation error of the instrument, and the corrected reading to A from point 2? Rg. Line of sight - Horizontal 24 First setup Line of sight Horizontal - B Second setup 100 ft 100 ft 100 ft

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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A horizontal collimation test is performed on an automatic level following the pro- cedures just described. With the instrument setup at point 1, the rod reading at A was 5.630 ft, and to B was 5.900 ft. After moving and leveling the instrument at point 2, the rod reading to A was determined to be 5.310 ft and to B to be 5.560 ft. As shown in Figure 4.21, the distance between the points was 100 ft. What is the collimation error of the instrument, and the corrected reading to A from point 2?
A horizontal collimation test is performed on an automatic level. With the instrument setup at point. 1, the rod reading at A was 5,221 ft, and to Bit was 5.533 ft. After moving and leveling the instrument at point 2, the rod reading to A was 4.950 ft and to B was 5.116 ft. The distance between the points in the test was 100 ft. Y What is the collimation error of the instrument? Express your answer to three significant figures and include the appropriate units. 6= Submit Part B HA Value Request Answer What is the corrected reading to A from point 2? Express your answer to four significant figures and include the appropriate units. Correct reading to A Units d μA Value Units
In the two-peg test method of a dumpy level, the following observations were taken. Determine the error in the line of sight in meters. Instrument Instrument near A 1.455 2.341 near B Reading at A Reading at B 0.978 1.957 O 0.081 0.098 0.046 O 0.066
A horizontal collimation test is performed on an automatic level following the procedures described in Section 4.15.5. With the instrument setup at point 1, the rodreading at A was 3.886 ft, and to B it was 3.907 ft. After moving and leveling the instrument at point 2, the rod reading to A was 4.094 ft and to B was 4.107 ft. What isthe collimation error of the instrument and the corrected reading to A from point 2?
1. A tacheometer was set up at station P and observations were made to two stations Q and R. The vertical angles to Q and R were 5°30 and 1°08 respectively. The cross-hair readings at Q were 2.105, 2.47 and 2.835 and those at R were 2.215, 2.56 and 2.905. The staff were held vertical in both cases. The instrument constants were 100 and 0.3. The reading from P to a BM of RL 285.35m was 2.255. The horizontal angle QPR measured was 58°30. Find the distance QR, the gradient from Q to R and the RLs of Q and R.
A horizontal collimation test is performed on an automatic level. With the instrument setup at point 1, the rod reading at A was 5.291 ft, and to B it was 5.413 ft. After moving and leveling the instrument at point 2, the rod reading to A was 4.950 ft and to B was 5.166 ft. The distance between the points in the test was 100 ft. Part A What is the collimation error of the instrument? Express your answer to three significant figures and include the appropriate units. E = Submit Part B μА Value Request Answer Units What is the corrected reading to A from point 2? Express your answer to four significant figures and include the appropriate units. Submit Request Answer μA Correct reading to A = Value ? Units ?
In a two-peg test of a dumpy level, the following observations were taken. Rod Reading Instrument at c Instrument at D Station A 0.296 m 1.574 m Station B 0.910 m 2.400 m Point C is equidistant from A and B, while D is 20m from A and 130m from B. Determine: a. The difference in elevation between A and B (in meters) b. The error when the instrument is at Point C (in meters) c. The error in Station A when the instrument is at Point D (in meters)
An angle was carefully measured 10 times with an optical theodolite by observers A and B on two separate days. The calculated results are as follows: Observer A Mean: 42°16'25" Probable Error: +3.2" Observer B Mean: 42°16'20 Probable Error: +1.6" Compute the most probable value of the angle.
situation 4] In the two-peg test method performed by a group of surveying students, the following observations were taken: Rod reading Instrument Instrument set up near set up near K 1.851 On A On B 1.318 1.741 1.048 Point J is equidistant from A and B, and K is 12.14 m from A and 74.25 m from B. The difference in elevation between A and B. The correct rod reading on B with the instrument set up at K. The correct rod reading on A with the instrument set up at K. iii.
During testing of a dumpy level, the following observations were taken:- Instrument at A B Staff reading at A 1.035 1.115 B 2.115 2.050 Check whether the instrument is in proper adjustment. What should be the revised reading of line of collimation. When the instrument is at B? If A and B are 95 m apart then what is the angle of inclination of line of collimation?
Survey The stadia readings with a horizontal sight on a vertical staff held 40 m away from a tacheometer were 1.385 m and 1.780 m. The focal length of the object glass was 25 cm. The distance between object glass and trunnion axis of the tacheometer was 12 cm. Solve for the stadia interval.
Please help me? The two-peg test is used to determine if the line of sight of the telescope is parallel to the axis of the bubble tube. A tilting level is set up halfway between points A and B and rod reading on both points are 1.969 and 2.161 m respectively. The level is then set up 1.50 m away from A along the extension of line AB and 53.50 from B. Then rod readings on A and B were recorded as 1.554 m and 1.728 m, respectively. Determine if the line of sight is inclined downward or upward and the amount by which the horizontal cross hair should be moved to adjust the line of sight.