Northwestern University "normal Surveying" machine test network test
papers Total: 100 Score: 100
a, multiple choice (a total of 50 questions, a total of 100 points)
1. Leveling claim visibility distance substantially equal before and after the action to weaken () The influence can also weaken the influence of the earth's curvature and atmospheric refraction.
A. The error of the circular horizontal axis and the vertical axis is not parallel
B. The error of the crosshairs is not perpendicular to the vertical uranium
C. The reading error
D. The error of the leveling tube axis and the collimation axis
2. The micro-tilt level is composed of telescope, () and base.
A. Vertical axis
B. Circular level
C. Level tube axis
D. Level
3.18. For n observations of a certain quantity, the result obtained according to the formula is ().
A. Error in arithmetic mean
B. Error in observation
C. True error in arithmetic mean
D. Error in one observation
4. From the measurement plane rectangular coordinate system, we can see ().
A. The quadrants are consistent with the directions of the quadrant numbers in the mathematical coordinates. The
BX axis is the ordinate axis, and the Y axis is the abscissa axis
. C. The azimuth is measured counterclockwise from the abscissa axis
.
5. The basic principle of measurement work is from the whole to the part, from high to low and ().
A. From control to crushed part
B. From crushed part to control
C. Control and crushed part in parallel
D. Mapping and stakeout in parallel
6. When leveling the field, after the level gauge reads the backsight readings, the foresight readings on the four corners M, N, O, and P of a square are respectively,, and, then the highest point and the lowest The points are ().
AP, O
BO, P
CM, N
DN, M
7. From the leveling point M (HM = .000m) to the point A to be determined through 4 stations, hMA = + 1.021m. Then from point A through 6 stations to another leveling point N (HN = .121m), get hAN = + 4.m, then the height of point A after adjustment is ().
A.101.m
B.101.m
C.101.m
D.101.021m
8. The free standing seawater extends toward the mainland and islands () is called the level surface, and the vertical line at any point on the surface is perpendicular to the surface.
A. Closed surface
B. Horizontal plane
C. Reference ellipsoid
surface D. Spherical surface
9. When leveling, the forward sight of the backsight ruler will cause the elevation of the foresight point ().
A. Too large
B. Too large or too small
C. Too small
D. Not too large or too small
10. In observation with a telescope, when the eyes shake, such as the mutual movement between the target image and the crosshairs is called parallax, the cause is ().
A. The target imaging plane does not coincide with the cross-hair plane
B. The instrument shaft system does not meet the geometric conditions
C. The human vision is not suitable for
D. The target brightness is not enough
11. At present, China adopts a unified measurement elevation system ().
A. Bohai Sea Elevation System
B. 1956 Elevation System
C. 1985 National Elevation Standard
D. Yellow Sea Elevation System
12. The measured two angle values and the median error are ∠A = 22 ° 22′10 ″ ± 8 ″ and ∠B = 44 ° 44′20 ″ ± 8 ″, and the accuracy is compared according to it, and ().
A. Both angles have the same
accuracy
B. ∠A has high accuracy
C. ∠B has high accuracy D. Relatively medium error
13. Theodolite centering is to place the center of the instrument and the measuring station on the same vertical line; leveling is to make the instrument ().
A. The round bubble is centered
B. The sight axis is horizontal
C. The vertical axis is vertical and the horizontal dial is horizontal
D. The horizontal axis is horizontal
14. Which of the following cannot be used as the basic direction of linear orientation? ()
A. True meridian direction
B. Primal meridian direction
C. Magnetic meridian direction
D. Coordinate longitudinal axis direction
15. In the leveling measurement, calculate and check whether ∑h = ∑a-∑b and ∑h = H and finally-H can be checked separately whether () is wrong.
A. Level point elevation, level reading
B. Position comparison, record
C. Elevation calculation, height difference calculation
D. Height difference calculation, elevation calculation
16. The inner angle sum of a certain hexagon is 720 ° 00′54 ″, then the true error of the inner angle sum and the correction number of each angle are ().
A. +54 ″, +9 ″
B.-54 ″ , +9 ″
C. + 54 ″, -9 ″
D.-54 ″, -9 ″
17. The longitudinal tangent of the arc of the inner wall made through the zero point of the vial is called the axis of the vial. When the bubble is centered, the axis is at ().
A. Horizontal
B. Inclined
C.
Vertical D. Vertical to the crisscross warp
18. The main layout forms of control wires in small areas are ().
A.①②④
B.①③⑥
C.②③⑤
D.②④⑥
19. The spherical normal of the zero point of the circular level is called ().
A. Level tube axis
B. Vertical line
C. Circular level box axis
D. Horizontal line
20. Determining the catchment area is to determine the closed figure area enclosed by a series () and the specified cross section.
A. Valley line
B. Ridge line
C. Contour line of a certain elevation
D. Water collecting line
21. Sighting axis refers to the connection of ().
A. The center of the eyepiece and the center of the objective lens
B. The intersection of the center of the crosshair and the center of the objective lens
C. The intersection of the center of the eyepiece optical center and the center of the crosshair
D. The center of the intersection of the crosshair and the center of the objective
22. When applying a level, center the bubble of the circular level and the level tube, the function is to reach () respectively.
A. Horizontal line of sight and vertical axis
B. Precise leveling and rough leveling
C. Vertical axis vertical and line of sight level
D. Rough leveling and horizontal line level
23. When the theodolite disk is left, when the line of sight is horizontal, the vertical disk reading is 90 °; when the telescope is lifted up and the reading is reduced, the vertical dial is marked clockwise. They are ().
A. 90 ° -L, R-270 °
BL-90 °, 270 ° -R
CL-90 °, R-270 °
D. 90 ° -L, 270 ° -R
24. In the triangular height measurement, the height difference calculation formula h = Dtgα + iv, where v is ().
A. Instrument height
B. Initial calculated height difference
C. Target elevation (medium wire reading)
D. Ruler interval
25. The relationship between the division value of the level tube and the longitudinal arc radius of the level tube is ().
A. Proportional
B. Inverse
C. Irrelevant
D. Square
26. At present, the origin of China's 1980 national geodetic coordinate system is called the geodetic origin of the People's Republic of China and is located at ().
A. Shanxi
B. Beijing
C. Shaanxi
D. Sichuan
27. Using the leveling point with an elevation of 44.926m, set the indoor floor elevation of a building to ± 0 (45.229m). When the backsight reading is 1.225m, the bottom line of the ruler is () m. It is the elevation mark of 45.229m.
A.1.225
B.0.303
C.-0.303
D.0.922
28. The adjustment of the level difference is to correct the height difference. The method is to calculate the height difference correction number according to the relationship between the number of stations (or the length of the route km).
A. Proportional and the same sign
B. Inverse proportional and the opposite sign
C. Proportional and the opposite sign
D. Inverse proportional and the same sign
29. If the theodolite has a poor index, the observation result will appear ().
A. The horizontal angle of the first round is incorrect
B. The horizontal angle of both the left and right sides of the market includes the index difference
C. The vertical angle of the first round of the measurement is incorrect
D. The vertical angle of both the left and right sides of the market includes the index difference
30. The main task of building construction lofting survey is to set the location of the building (structure) designed on the drawing to the field.
A. Plane
B. Relative dimensions
C. Elevation
D. Plane and elevation
31. In leveling, pay attention to the same distance between front and back to eliminate the effect of () on the height difference.
A. Leveling error
B. The leveling tube axis is not parallel to the collimation axis and the curvature of the earth and atmospheric refraction
C. The axis of the circular level is not parallel to the vertical axis
D. Parallax
32. The formula () is used to check the achievements in line with the standard route.
A. 
B. 
C. 
D.
33. The average free standing sea surface is called ().
A. Ground surface
B. Geoid
C. Level
D. Reference ellipsoid surface
34. The source of the error is ().
A. The measuring instrument is imperfectly constructed
B. The observer's sensory organs have limited ability to distinguish
C. The external environment and meteorological conditions are unstable
DA, B and C
35. Leveling is to use the level meter to provide () to find the difference between two points, and through the elevation of one of the known points, the elevation of the unknown point is calculated.
A. Vertical line
B. Sight axis
C. Level tube axis
D. Horizontal line of sight
36. It is known that the coordinates of the two points of the straight lines A and B are (150.000, 200.000) m and (325., 375.) m, respectively. The reclining azimuth of the straight line AB is ().
A.45 °
B.225 °
C.135 °
D.315 °
37. The formula for calculating () is different for closed wires and attached wires.
A. Angle closure error, coordinate increment closure error
B. Azimuth angle, coordinate increment
error C. Angle closure error, wire length closure error
D. Y-axis incremental closure error, X-axis incremental closure error
38. In the rectangular coordinate system of the measurement plane, the vertical axis is ().
AX axis, positive
BY axis to the east, positive
CX axis to the east , positive
DY axis to the north, positive to the north
39. Measure a distance 4 times, the results are 132.563m, 132.543m, l32.548m and 132.538m, then the error in the arithmetic mean and the relative median error of the final result is ().
± 10.8mm A.,. 1/12200
B. ± 9.4mm,. 1/14
C. ± 4.7mm,. 1/28200
D. ± 5.4mm,. 1/24 546
40. The contour lines representing landforms are classified as ().
A.①②③⑤
B.①③④⑥
C.②③④⑤
D.③④⑤⑥
41. Measure the horizontal angle of the measured line clockwise from the north end of the standard direction. The name of the angle and its value range are ().
A. Quadrant angle, O ° —90 °
B. Quadrant angle, 0 ° — ± 90 °
C. Azimuth angle, 0 ° — ± 180 °
D. Azimuth angle, 0 ° —360 °
42. It is required that the minimum length of the ground features on the topographic map should be 0.2m, and the scale of () mapping should be selected.
A.1 / 500
B.1 / 1000
C.1 / 5000
D.1 / 2000
43. When performing round-trip route leveling, the theoretical relationship between ∑h and ∑h should be ().
A. opposite signs, unequal absolute values
B. same signs, same absolute values
C. opposite signs, equal absolute values
D. same signs, unequal absolute values
44. Equal precision observation refers to () observation.
A. The same allowable error
B. The same systematic error
C. The same observation conditions
D. The same accidental error
45. Levels have DS0.5, DS1, DS3; and other models. The subscript numbers 0.5, 1, 3, etc. represent the accuracy of the level, which is the median error value of the round-trip height difference per kilometer of the level measurement, in units of ().
A.km
Bm
C.cm
D.mm
46. In linear orientation, the commonly used standard direction is ().
A.①②④
B.①③④
C.①③⑥
D.②④⑥
47. A point in Beijing is located at 116 ° 28 ′ east longitude and 39 ° 54 ′ north latitude, then the number of the 6 ° zone where the point is located and the longitude of the central meridian are ().
A.20, 120 °
B.20, 117 °
C.19, 111 °
D.19, 117 °
48. The error in the arithmetic mean is () times the error in the observed value.
An
B.1 / n
C. 
D.
49. The vertical distance from a point to the geoid is called the point ().
A. Relative elevation
B. Height difference
C. Elevation
D. Absolute elevation
50. It is known that the Gaussian coordinate value of the 6 ° band where the M point is located is xM =, yM =, then the M point is located at ().
A.21 belt, B.36 belt east of
the central meridian,
C.21 belt east of the central meridian,
D.36 belt west of the central meridian, west of the central meridian
2. Multiple choice questions (0 test questions, 0 points in total)
