Advanced Surveying MCQ Solved Paper for IIFT

1. 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

2. Circumpolar stars
A. Rotate round the North Pole
B. Rotate round the celestial pole
C. Remain always above the horizon
D. Are seldom seen near the pole star
Answer : C

3. The Polaris describes a small circle round the pole whose radius is approximately
A. 1°
B. 2°
C. 3°
D. 4°
Answer : A

4. Pick up the in-correct statement from the following:
A. Correction for refraction is always negative
B. Correction for parallax is always positive
C. Correction for semi-diameter is always negative
D. Correction for dip is always negative
Answer : C

5. The scale of a tilted photograph of focal length f, taken from an altitude H, along the plate parallel through plumb point, is
A. f/H sec ?
B. f sec ?/H
C. f/H
D. f/H cos ½?
Answer : B

6. Pick up the in-correct statement from the following:
A. Apparent solar time is measured from the lower transit of the true sun
B. Mean solar time is measured from the lower transit of the mean sun
C. Sidereal time is measured from the lower transit of the first point of Aries
D. Sidereal time is measured from the upper transit of the first point of Aries
Answer : D

7. The stereo plotting instruments are generally manufactured on the principle of
A. Optical projection
B. Optical mechanism projection
C. Mechanical projection
D. All the above
Answer : D

8. Pick up the correct statement from the following:
A. The plane passing through the perspective centre of a stereo pair and a ground point, is known as basal plane
B. Each pair of image points on stereo pair have their own basal plane
C. Relative orientation means reconstructing the basal plane
D. All the above
Answer : D

9. 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

10. The displacement of the pictured position of a point of h elevation on a vertical photograph taken with a camera of 30 cm focal length, from an altitude of 3000 m, is
A. 4.4 mm
B. 5.5 mm
C. 6.5 mm
D. 7.5 mm
Answer : D

11. 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

12. 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

13. The First Point of Aeries
A. Is the point in the celestial sphere where zero meridian crosses the celestial equator
B. Is usually denoted by the Greek letter ?
C. Is located near the very conspicuous rectangle of stars in the constellations of Pegasus and Andromeda
D. All the above
Answer : D

14. 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

15. The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as
A. Ground principal point
B. Ground plumb point
C. Iso-centre
D. Perspective centre
Answer : B

16. Assuming human normal vision distance 25 cm, smallest measurable angle 20, and intraocular distance 6.5 cm, the smallest depth to be discerned is
A. 0.1 mm
B. 0.5 mm
C. 1.00 mm
D. 1.1 mm
Answer : A

17. The time interval between successive transits of the moon, is
A. 24 hours 10 minutes
B. 20 hours 25 minutes
C. 24 hours 50 minutes
D. 23 hours 50 minutes
Answer : C

18. The point on the photograph where bisector between the vertical line through optical centre of the camera lens and the plate perpendicular meets, is known as
A. Principal point
B. Isocenter
C. Plumb point
D. Perspective centre
Answer : B

19. Pick up the correct statement for horizontal photographs.
A. Parallel lines do not appear parallel in central projection
B. The two sides of a road meet at the vanishing point
C. The lines parallel to the negative plane are projected as parallel lines
D. All the above
Answer : D

20. If two points differing by 1° of latitude and of the same longitude is 110 km apart on the earth, then two astronomical positions on themoon is about
A. 10 km
B. 25 km
C. 30 km
D. 50 km
Answer : C

21. For mapping any country
A. Geodetic triangulation of greatest possible sides and accuracy is carried out
B. Primary triangles are broken down into secondary triangles of somewhat lesser accuracy
C. Secondary triangles are further broken into third and fourth order triangles, the points of which are used for detail surveys
D. All the above
Answer : D

22. The angle between the axis of earth and the vertical at the station of observation is called
A. Astronomical latitude
B. Astronomical co-latitude
C. Co-declination of star
D. Declination of star
Answer : B

23. The negative sign is assigned to
A. Reduction to mean sea level
B. Correction for horizontal alignment
C. Correction for slope
D. All the above
Answer : D

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

25. The main object of the astronomer to obtain
A. Astronomical latitude
B. Astronomical longitude
C. Astronomical bearing
D. All of these
Answer : D

26. Perspective centre relates to
A. Parallel projection
B. Orthogonal projection
C. Central projection
D. None of these
Answer : C

27. Pick up the incorrect statement from the following. High oblique photographs
A. May have tilt up to 30°
B. May include the image of the horizon
C. May not include the image of the horizon
D. None of these
Answer : D

28. With standard meridian as 82° 30' E the standard time at longitude 90° E is 8 h 30 m. The local mean time at the place will be
A. 7 h 00 m
B. 7 h 30 m
C. 8 h 00 m
D. 9 h 00 m
Answer : D

29. Sidereal day
A. Is the period of time taken by the earth in making a complete rotation with reference to stars
B. Is slightly shorter than an ordinary solar day
C. Is divided into the conventional hours, minutes and seconds
D. All the above
Answer : D

30. A star is said to elongate
A. When the star momentarily moves vertically
B. When the angle at the star of the spherical triangle is 90°
C. When the star's declination is greater than the observer's latitude
D. All the above
Answer : D

31. 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

32. The parallax of a point on the photograph is due to
A. Ground elevation
B. Flying height
C. Length of air base
D. All the above
Answer : D

33. The principal line is the line joining the principal point and
A. Nadir
B. Isocenter
C. Perspective centre
D. None of these
Answer : B

34. Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.
A. By subtracting their longitudes if places are in the same hemisphere
B. By adding their longitudes if places are in the different hemispheres
C. By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres
D. All the above
Answer : C

35. The relief displacement of a building 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is
A. 500 m
B. 1000 m
C. 1500 m
D. 2000 m
Answer : B

36. The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above
A. Equator
B. Horizon
C. Pole
D. None of these
Answer : B

37. Pick up the correct statement from the following:
A. The principal point coincides with plumb point on a true vertical photograph
B. The top of a hill appears on a truly vertical photograph at greater distance than its bottom from the principal point
C. The top of a hill is represented on a vertical photograph at larger scale than the area of a nearby valley
D. All the above
Answer : D

38. The parallax equation ?p = Bm?h/H - h is applicable to entire overlap of the photographs only if parallax is measured
A. Normal to base line
B. Parallel to base line
C. Both (a) and (b)
D. Neither (a) nor (b)
Answer : B

39. The net ground area of a vertical photograph 20 cm × 20 cm on scale 1 : 10,000 having overlaps 60% and 30%, is
A. 0.50 sq km
B. 0.56 sq km
C. 0.60 sq km
D. 0.64 sq km
Answer : D

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

41. Pick up the correct statement from the following:
A. If the applied tension to the tape is more than the standard, the tension correction is positive
B. If the applied tension to the tape is less than the standard, the tension correction is negative
C. If the temperature during measurement is greater than the standard temperature, the temperature correction is positive
D. All the above
Answer : D

42. In field astronomy, the quantities observed are entirely
A. Lengths
B. Angles
C. Heights
D. All of these
Answer : B

43. The moon rotates round the earth once in every
A. 29 days
B. 29.35 days
C. 29.53 days
D. 30 days
Answer : B

44. Polaris is usually observed for the determination of the azimuth when it is
A. At culmination
B. At elongation
C. Neither at culmination nor at elongation
D. Either at culmination or at elongation
Answer : B

45. The distance between the projection centre and the photograph, is called
A. Principal distance
B. Principal line
C. Isocentric distance
D. Focal length
Answer : A

46. Pick up the correct statement from the following:
A. Ursa Minor's remains always north of pole star
B. Polar star remains always north of Polaris
C. Polaris remains always north of Ursa Minor's
D. Ursa Minor's pole star and Polaris are the names of the same star
Answer : D

47. If the distance between the projectors is altered by a movement along X-axis of one projector,
A. The length of the air base is increased
B. The scale of the model is altered
C. y-parallax is not affected
D. All the above
Answer : D

48. Pick up the correct statement from the following:
A. The star's movement is apparent due to the actual steady rotation of the earth about its axis
B. The stars move round in circular concentrated parts
C. The centre of the circular paths of stars is the celestial pole
D. All the above
Answer : D

49. 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

50. 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