1000+ Advanced Surveying MCQ for CAT [Solved]

1. Places having same latitude
A. Lie on the parallel of the latitude
B. Are equidistant from the nearer pole
C. Are equidistant from both the poles
D. All the above
Answer : D

2. The value of geo-centric parallax to be added to the observed altitude of sun is
A. 9 cos ?
B. 9 sin ?
C. 9 tan ?
D. 9 cot ?
Answer : A

3. From the principal point the horizon point lies on the principal line at a distance of
A. f tan ?
B. f sin ?
C. f cot ?
D. f cos ?
Answer : A

4. At the first point of Aeries, the sun moves
A. Northward
B. Southward
C. From south to north of the equator
D. From north to south of the equator
Answer : C

5. At eastern elongation, the pole star moves
A. Eastward
B. Westward
C. Northward
D. Southward
Answer : C

6. The prime vertical passes through
A. The east point of the horizon
B. The west point of the horizon
C. The zenith point of the observer
D. All the above
Answer : D

7. Longitude of a place is the angular distance between the meridian of the place and
A. The standard meridian
B. The international date line
C. That of Greenwich
D. Both (a) and (c) of above
Answer : D

8. The circle in which a plane tangent to the earth's surface at the point of observation, intersects the celestial sphere, is called
A. Visible horizon
B. Sensible horizon
C. Celestial horizon
D. True horizon
Answer : B

9. Latitude of a place is the angular distance from
A. Greenwich to the place
B. Equator to the poles
C. Equator to the nearer pole
D. None of these
Answer : D

10. The longitudes of two places at latitude 60° N are 93° E and 97° W. Their departure is
A. 5100 nautical miles
B. 5700 nautical miles
C. 120 nautical miles
D. 500 nautical miles
Answer : B

11. While making astronomical observations, the observer is mainly concerned with
A. The direction of the vertical, the axis of rotation of the instrument
B. The direction of the poles of the celestial sphere
C. The direction of the star from the instrument
D. All the above
Answer : D

12. In observations of equal precision, the most probable values of the observed quantities are those that render the sum of the squares of the residual errors a minimum, is the fundamental principle of
A. Gauss' Mid Latitude formula
B. D'Alembert's method
C. Legendre's method
D. Least square method
Answer : D

13. The latitude (?) of a place and the altitude (?) of the pole are related by
A. ? = ?
B. ? = 90° - ?
C. ? = ? - 90°
D. ? = 180° - ?
Answer : A

14. Accidental errors
A. Do not follow any definite mathematical law
B. Cannot be removed by applying corrections to the observed values
C. Are generally small
D. All the above
Answer : D

15. For any star to be a circumpolar star, its
A. Declination must be 0°
B. Declination must be 90°
C. Distance from the pole must be less than the latitude of the observer
D. Hour angle must be 180°
Answer : C

16. The point on the celestial sphere vertically below the observer's position, is called
A. Zenith
B. Celestial point
C. Nadir
D. Pole
Answer : C

17. If ? is the observed altitude, the refraction correction in seconds, is
A. 58 cot ?
B. 58 tan ?
C. 58 sin ?
D. 58 cos ?
Answer : A

18. The shortest distance between two places measured along the surface of the earth, is
A. Length of the equator between their longitudes
B. Length of the parallel between their longitudes
C. Length of the arc of the great circle passing through them
D. None of these
Answer : C

19. The nautical mile is the length of
A. 1 minute of latitude
B. 1 minute of longitude
C. 1 degree of latitude
D. 1 degree of longitude
Answer : B

20. Rotation of the camera at exposure about its vertical axis, is known as
A. Swing
B. Tilt
C. Tip
D. None of these
Answer : A

21. On vertical photographs, height displacement is
A. Positive for points above datum
B. Negative for points below datum
C. Zero for points vertically below the air station
D. All the above
Answer : D

22. In a tropical year, the numbers of sidereal days are
A. 365
B. 365.2224
C. 365.2422
D. 366.2422
Answer : D

23. To have greatest coverage of the area, the type of photography used, is
A. High oblique
B. Low oblique
C. Vertical
D. None of these
Answer : A

24. If ? is the declination of the star and ? is the latitude of the observer, then the azimuth of the star at elongation is given by
A. sin z = sec ? . cos ?
B. cos z = sec ? . cos ?
C. tan z = sec ? . cos ?
D. None of these
Answer : A

25. Pick up the correct statement from the following:
A. The horizontal direction of the pole is called astronomical north
B. The angle between the direction of true north and the direction of a survey line is called astronomical bearing
C. The astronomical bearing is generally called azimuth
D. All the above
Answer : D

26. The rate of change of parallax dp/dh with respect to change in h, may be expressed as
A. fB/(H - h)
B. fB/(H - h)²
C. fB/(H + h)
D. fB/(H + h)²
Answer : B

27. The great circle which passes through the zenith, nadir and the poles, is known as
A. Meridian
B. Vertical circle
C. Prime vertical
D. None of these
Answer : A

28. At lower culmination, the pole star moves
A. Eastward
B. Westward
C. Northward
D. Southward
Answer : A

29. For adjusting a quadrilateral whose both the diagonals are observed, the equations of conditions involved, are
A. Two angle equations and two side equations
B. One angle equation and three side equations
C. Three angle equations and one side equation
D. None of these
Answer : C

30. H is the flying height above mean ground level and f is the principal distance of a vertical photograph. The mean scale of the photographs is
A. H. f
B. H/f
C. f/H
D. H + f
Answer : C

31. If ? is the declination of the Polaris and ? is the latitude of the place, the azimuth of the Polaris, is
A. cos ?/cos ?
B. cos (90° - ?)/cos (90° - ?)
C. sin (90° - ?)/sin (90° - ?)
D. tan (90° + ?)/tan (90° + ?)
Answer : A

32. The relation between the air base (B), photographic base (b), flying height (H) and the focal length (f) of a vertical photograph, is
A. B = bH/f
B. B =f/bH
C. B = b/fH
D. B = H/bf
Answer : A

33. Spring tides are caused when
A. Sun and moon are in line with earth
B. Solar tidal force acts opposite to lunar tidal force
C. Solar tidal force and lunar tidal force both coincide
D. None of these
Answer : C

34. Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel
A. 24 %
B. 36 %
C. 40 %
D. 60 %
Answer : B

35. To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30, 000, with a camera of 30 cm focal length, the flying height is
A. 4000 m
B. 5000 m
C. 6000 m
D. 7000 m
Answer : C

36. The method of surveying by triangulation was first introduced by the Dutchman Snell in
A. 1600
B. 1615
C. 1630
D. 1650
Answer : B

37. Homologous point is
A. Photo principal point
B. Ground principal point
C. Ground isocenter
D. All the above
Answer : D

38. The angle between the direction of star and the direction of earth's axis of rotation is called
A. Co-declination
B. Co-latitude
C. Declination
D. Latitude
Answer : A

39. The want of correspondence in stereo-photographs
A. Is a good property
B. Is a function of tilt
C. Is not affected by the change of flying height between photographs
D. Is minimum when ? is 3°
Answer : B

40. When a star is between the pole and the horizon, the relationship between latitude (?), zenith distance (z) and declination ?, is
A. ? = z + ?
B. ? = ? - z
C. ? = 180° - (z + ?)
D. ? = (z + ?) - 180°
Answer : C

41. The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than
A. 0.01 second
B. 0.001 second
C. 0.0001 second
D. None of these
Answer : C

42. The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as
A. Satellite station
B. Eccentric station
C. False station
D. Pivot station
Answer : D

43. Pick up the correct statement from the following:
A. Centre of the celestial sphere is taken as the position of the observer
B. Centre of the celestial sphere is taken as the centre of the earth
C. Stars move and maintain their relative positions
D. All the above
Answer : D

44. The necessary geometrical condition for triangulation adjustment is:
A. The sum of the angles around a station should be 360°
B. The sum f the three angles of a plane triangle should be 180°
C. The sum of the eight angles of a braced quadrilateral should be 360°
D. All the above
Answer : D

45. The angle between the plane of the equator and the plane of the ecliptic, is known as obliquity of the ecliptic and its value is
A. 22° 30'
B. 23° 27'
C. 23° 30'
D. 24° 0'
Answer : B

46. Pick up the correct statement from the following:
A. Sidereal time at any instant is equal to the hour angle of the first point of Aries
B. Local sidereal time of any place is equal to the right ascension of its meridian
C. Sidereal time is equal to the right ascension of a star at its upper transit
D. All the above
Answer : D

47. The zenith is the point on the celestial sphere
A. East of observer
B. West of observer
C. North of observer
D. South of observer
Answer : D

48. Pick up the incorrect statement from the following:
A. Latitudes north of the equator are taken as positive
B. Latitudes south of the equator are taken as negative
C. Longitudes east of Greenwich are taken as negative
D. Longitudes west of Greenwich are taken as positive
Answer : C

49. At upper culmination, the pole star moves
A. Eastward
B. Westward
C. Northward
D. Southward
Answer : B

50. In a spherical triangle ABC, right angled at C, sin b equals
A. sin a cos A
B. cos a sin A
C. tan a cot A
D. cot A tan a
Answer : C