- Part 1 Short Answer Questions 50 1 What Are The Basic Measurements In The Surveying 4 2 What Types Of Traverse 1 (72.56 KiB) Viewed 37 times
- Part 1 Short Answer Questions 50 1 What Are The Basic Measurements In The Surveying 4 2 What Types Of Traverse 2 (72.62 KiB) Viewed 37 times
- Part 1 Short Answer Questions 50 1 What Are The Basic Measurements In The Surveying 4 2 What Types Of Traverse 3 (94.9 KiB) Viewed 37 times
- Part 1 Short Answer Questions 50 1 What Are The Basic Measurements In The Surveying 4 2 What Types Of Traverse 4 (125.82 KiB) Viewed 37 times
- Part 1 Short Answer Questions 50 1 What Are The Basic Measurements In The Surveying 4 2 What Types Of Traverse 5 (86.61 KiB) Viewed 37 times
Part 1. Short Answer Questions (50') 1. What are the basic measurements in the surveying? (4') 2. What types of traverses are commonly used in the control surveying? Please draw the figures to illustrate them. (6') Nanjing Tech University Page 1 of 7 All students must practice academic honesty. All intentional incidents of malpractice, which include but not limited to imposture, cheating with electronic devices and organizing cheating are not justified and will be treated seriously. 3. In the leveling measurement, why should we keep the fore distance and the back distance equal? (4') 4. Where does the error come from in the GNSS positioning? (6¹) 5. Please describe the general procedures to measure the height difference between the two points?
6. What types of the height systems are commonly used in the surveying work? And what the corresponding reference datum of these height systems? (6') 7. What is the random error? The characteristics of the random error? (7) 8. What is the topographic survey? What's the differences between topographic map and planimetric map? (7¹) Nanjing Tech University Page 3 of 7 All students must practice academic honesty. All intentional incidents of malpractice, which include but not limited to imposture, cheating with electronic devices and organizing cheating are not justified and will be treated seriously. 9. What's the contour? What are the characteristics of contour lines? (6') 10. In the leveling measurement, two different kinds of methods are commonly used at each station to
Part 2. Calculation Problems (50') 1. The distance between point A and point B is 5 cm on a map whose map scale is 1:500. (1) What's the real distance between A and B on the real ground? (2) What's the scale accuracy of this map? (7') Nanjing Tech University Page 4 of 7 All students must practice academic honesty. All intentional incidents of malpractice, which include but not limited to imposture, cheating with electronic devices and organizing cheating are not justified and will be treated seriously. 2. The surveyor used the same tape to measure two straight lines AB and CD under the same condition. The distance of AB is 150 m and its standard error equals to +15 mm. The distance of CD is 400 m, and its standard error equals to +20 mm. Do the two distance measurements have the same accuracy? Why? (8') 5/7 3. An angle has been measured 4 times, the measurements are 158°30′47", 158°30'42", 158°30'46", and 158°30'41". Please calculate (1) the mean value of the measurement, (2) the standard error of the measurement. (8') ●● ●● ●●
All students must practice academic honesty. All intentional incidents of malpractice, which include but not limited to imposture, cheating with electronic devices and organizing cheating are not justified and will be treated seriously. 4. The inner angles of the quadrangle are measured and listed in Table 1. Please calculate the (1) angular closure error; (2) the corrected observe angle. (8') Table 1. Calculation table for the connecting traverse Point 1 2 3 4 Σ Observe angle a 112 15 '23" S 67 14 12" 54°15 '20" 126 15 25" The corrected value for the observe angle 5. In the trigonometric leveling, the elevation of the point A is HA-12.142 m, the height of the instrument is i =1.423 m, the height of the prism on the point B is v=1.346 m, the vertical angle is a = 30°00'00", and the slope distance is S-18.248 m. What's the elevation of the Nanjing Tech University point B? (7¹) Corrected Angle Page 6 of 7 6/7 All students must practice academic honesty. All intentional incidents of malpractice, which include but not limited to imposture, cheating with electronic devices and organizing cheating are not justified and will be treated seriously. 6. The coordinates of the point A and the point B are XA = 225.00 m, YA = 274.00 m and XB 275.00 m, YA = 324 .00 m. Please calculate the distance and the azimuth of line AB. (6') :::
All students must practice academic honesty. All intentional incidents of malpractice, which include but not limited to imposture, cheating with electronic devices and organizing cheating are not justified and will be treated seriously. 6. The coordinates of the point A and the point B are X₁ = 225.00 m, YA = 274.00 m and XB 275.00 m, YA = 324.00 m. Please calculate the distance and the azimuth of line AB. (6') 7. Filling the vertical angle measurement table. (6¹) Position Station Target of vertical plate A 1 2 Nanjing Tech University Left Right Left Right Readings 98°41'18" 261°18'30" 55°56'30" Page 6 of 7 304°03'06" Half-round vertical angle Nanjing Tech University One Round Vertical angle Page 7 of 7 The label of the vertical plate (Face left) 270 9₂ 7/7 ...