1000+ Advanced Surveying MCQ for SSC CHSL [Solved]

1. 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

2. Pick up the incorrect statement from the following. The angular distance of heavenly bodies on observer's meridian measured from the pole, is
A. Co-declination
B. Co-altitude
C. Co-latitude
D. Polar distance
Answer : A

3. The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The declination of the star, is
A. 80°
B. 70°
C. 60°
D. 50°
Answer : C

4. The slotted template method
A. Is prepared, by graphical method
B. Is suitable for large areas with less control
C. Is rapid and accurate
D. All the above
Answer : D

5. 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

6. 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

7. The station where observations are not made, but the angles at the station are used in triangulation series, is known as
A. Satellite station
B. Subsidiary station
C. Pivot station
D. Main station
Answer : C

8. 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

9. 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

10. If ? and ? be the latitude of an observer and declination of a heavenly body respectively, the upper culmination of the body will be south of zenith if its zenith distance, is
A. ? - ?
B. ? - ?
C. ? + ?
D. ½ (? - ?)
Answer : B

11. The correction applied to the measured base of length L is
A. Tension = (P - Ps)L/AE
B. Sag = L³w²/24P² where w is the weight of tape/m
C. Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports
D. All the above
Answer : D

12. 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

13. The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is
A. 1 : 10,000
B. 1 : 15,000
C. 1 : 20,000
D. 1 : 30,000
Answer : C

14. Limiting gradient for locating the base line on evenly-sloping ground, is
A. 1 in 12
B. 1 in 10
C. 1 in 8
D. 1 in 6
Answer : A

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

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

17. The hour angle of the heavenly body for Greenwich meridian equals the hour angle of the body for any other meridian + longitude:
A. Mean sun
B. True sun
C. Vernal equinox
D. All the above
Answer : D

18. 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

19. The plane at right angle to the zenith-nadir line and passing through the centre of the earth, is called
A. Rational horizon
B. True horizon
C. Celestial horizon
D. All the above
Answer : D

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

21. 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 poar 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

22. Pick up the correct statement from the following:
A. The angle between the plane of the negative and the horizontal plane containing perspective axis is the tilt of the photograph
B. The direction of maximum tilt is defined by the photo principal line
C. The principal plane is truly vertical plane which contains perspective centre as well as principal point and plumb point
D. All the above
Answer : D

23. 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

24. 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

25. The difference in longitude of two places expressed in time is equal to the difference in their
A. Sidereal time
B. Apparent solar time
C. Mean solar time
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. In a tropical year, the numbers of sidereal days are
A. 365
B. 365.2224
C. 365.2422
D. 366.2422
Answer : D

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

29. 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

30. 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

31. 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

32. The orthogonal projection of the perspective centre on a tilted photograph, is called
A. Nadir
B. Isocenter
C. Principal point
D. Plumb point
Answer : C

33. 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

34. The coverage is least if photography is
A. High oblique
B. Low oblique
C. Vertical
D. None of these
Answer : C

35. 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

36. The flying height of the camera is 1, 000 m above mean ground level, the distance of the top of a building from a nadir point is 10 cm and the relief displacement of building is 7.2 mm. The height of the building, is
A. 52 m
B. 62 m
C. 72 m
D. 82 m
Answer : C

37. 23 cm × 23 cm photographs are taken from a flying height with a camera of focal length of 3600 m and 15.23 cm respectively. A parallax difference of 0.01 mm represents
A. 1 m
B. 2 m
C. 4 m
D. 8 m
Answer : A

38. 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

39. The sun's declination remains north between
A. March 21 to June 21
B. June 21 to September 21
C. September 21 to December 21
D. Both (a) and (b) of above
Answer : D

40. 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

41. 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

42. Systematic errors
A. Always follow some definite mathematical law
B. Can be removed by applying corrections to the observed values
C. Are also known as cumulative errors
D. All the above
Answer : D

43. Pick up the correct statement from the following:
A. The measured stereoscopic base of photographs is obtained by dividing the air base in metres by the mean scale of the photograph
B. The difference between the absolute parallax of two points depends upon the difference in their elevations
C. The line joining the principal point of a photograph and the transferred principal point of the adjoining photograph, is called stereoscopic base
D. All the above
Answer : D

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

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

46. 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

47. If ? is the declination of the star and ? is the latitude of the observer then the hour angle of the star at elongation is given by
A. sin H = tan ? . cot ?
B. cos H = tan ? . cot ?
C. tan H = tan ? . cot ?
D. None of these
Answer : B

48. 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

49. The declination and right ascension of the sun becomes 23° 27' S and 270° respectively on
A. March 21
B. June 21
C. September 21
D. December 22
Answer : D

50. 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