Advanced Surveying 1000+ MCQ with answer for IBPS RRB

1. 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

2. The position of a heavenly body on the celestial sphere can be completely specified by
A. Its altitude and azimuth
B. Its declination and hour angle
C. Its declination and right ascension
D. All the above
Answer : D

3. In a truly vertical photograph,
A. Principal point coincides the isocenter
B. Iso-centre coincides the plumb point
C. Plumb point coincides the principal point
D. All the above
Answer : D

4. If the general ground level of any area is 10% of the flying height, the principal points may be used as the centres of radial directions for small scale mapping even in tilted photograph up to
A. 1°
B. 2°
C. 3°
D. 4°
Answer : C

5. Pick up the correct statement from the following:
A. North end of the polar axis is known as North Pole
B. South end of the polar axis is known as South Pole
C. Point where polar axis when produced northward intersects the celestial sphere, is known as north celestial pole
D. All the above
Answer : D

6. 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

7. The Polaris remains below horizon at
A. 10° N
B. 50° N Latitude
C. Equator
D. 5° S latitude
Answer : D

8. 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

9. The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The latitude of the place, is
A. 80°
B. 70°
C. 60°
D. 40°
Answer : D

10. The distance between the minor control point and the principal point should be equal to
A. Base line of the left photograph of stereo pair
B. Base line of the right photograph of stereo pair
C. Sum of the base lines of stereo pair
D. Mean of the base lines of the stereo pair
Answer : D

11. 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

12. The station pointer is generally used in
A. Triangulation surveying
B. Astronomical surveying
C. Hydrographical surveying
D. Photogrammetric surveying
Answer : C

13. In triangulation surveys
A. The area is divided into triangular figures
B. Control stations are located from which detailed surveys are carried out
C. Sides are not measured excepting the base line
D. All the above
Answer : D

14. 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

15. The length of a parallel of ? latitude between two meridians is equal to difference in longitudes multiplied by
A. sin ?
B. cos ?
C. tan ?
D. cot ?
Answer : B

16. If 16 flight lines are run perpendicular to an area 30 km wide, their spacings on a photographical map on scale 1 : 50,000 , will be
A. 1 cm
B. 2 cm
C. 3 cm
D. 4 cm
Answer : D

17. ? and ? are the angles subtended by a point of elevation h at their air station with respective plumb points. Photo scale and focal length of the lens being S and f respectively. Parallax displacement of the point due to relief, is
A. h tan ?/S
B. h tan ?/S
C. h (tan ? + tan ?)/S
D. h (tan ? - tan ?)/S
Answer : C

18. A star in northern sphere is said to transit
A. When its altitude is maximum
B. When its azimuth is 180°
C. When it is in south
D. All the above
Answer : D

19. The angular distance of a heavenly body from the equator, measured along its meridian, is called
A. Declination
B. Altitude
C. Zenith distance
D. Co-latitude
Answer : A

20. Right ascension of a heavenly body is its equatorial angular distance measured
A. Westward from the first point of Libra
B. Eastward from the first point of Aeries
C. Westward from the first point of Aeries
D. Eastward from the first point of Libra
Answer : B

21. 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

22. If ?, H, A and ? be the altitude, hour angle, azimuth and declination of a circumpolar star at its elongation, in latitude ?, the following relation holds good
A. cos H = tan ?/tan ?
B. sin ? = sin ?/sin ?
C. sin A = cos ?/cos ?
D. All the above
Answer : D

23. The latitude of a place was obtained by subtracting the zenith distance of a star from its declination, the observed star was between
A. Horizon and equator
B. Equator and zenith
C. Zenith and pole
D. Pole and horizon
Answer : C

24. If v, t and f/H are the ground speed of the aircraft, the shutter speed of the camera and the scale of the photograph respectively, then the amount of image displacement
A. i = v. t. H/f
B. i = v. f/t. H
C. i = v. t. (f/H)
D. i = t. H/v. f
Answer : C

25. Pick up the incorrect statement from the following:
A. In truly vertical photographs without relief angles are true at the plumb point
B. In tilted photographs without relief, angles are true at the iso-centre
C. In tilled photographs with relief, angles are true at the principal point
D. None of these
Answer : C

26. 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

27. Equation of time which is the difference between apparent solar time and mean solar time at any instant, vanishes during one year
A. Once
B. Twice
C. Thrice
D. Four times
Answer : D

28. 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

29. 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

30. Longitudes are measured from 0° to
A. 180° eastward
B. 180° westward
C. 180° east or westward
D. 360° eastward
Answer : C

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

32. Homologous points are
A. Opposite corners of a photograph
B. Nodal points of the camera lens
C. Corresponding points on the ground and photograph
D. Plumb points of stereo pair of photographs
Answer : C

33. 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

34. The altitude of a circumpolar star is maximum when it is
A. At east elongation
B. At upper culmination
C. At west elongation
D. At lower culmination
Answer : B

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

36. 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

37. Stellar astronomy deals with
A. Plane surveying
B. Geodetic surveying
C. Star observations
D. Planet observations
Answer : C

38. The equation which is obtained by multiplying each equation by the coefficient of its un-knowns and by adding the equations thus formed, is known as
A. Observation equation
B. Conditional equation
C. Normal equation
D. None of these
Answer : C

39. The height displacement on a vertical photograph
A. Increases as the horizontal distance increases from the principal point
B. Increases as the ground elevation increases
C. Decreases as the flying height increases
D. All the above
Answer : D

40. Pick up the correct statement from the following:
A. The sun's right ascension increases for 0 h to 24 h when it returns to the First point of Aries
B. The maximum declination of the sun increases up to 23 ½° N on about 21st June
C. The minimum declination of the sun is zero' on 22nd September
D. All the above
Answer : D

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

42. The foot of the perpendicular on the picture plane through the optical centre of the camera lens, is known as
A. Isocenter
B. Principal point
C. Perspective centre
D. Plumb line
Answer : B

43. 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

44. 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

45. 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

46. 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

47. 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

48. 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

49. If a star whose declination is 60° N culminates at zenith, its altitude at the lower culmination, is
A. 10°
B. 20°
C. 30°
D. 40°
Answer : C

50. The declination and right ascension of the sun becomes 23° 27' N and 90° respectively on
A. March 21
B. June 21
C. September 21
D. December 22
Answer : B