Discussion
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- Question
On vertical photographs, height displacement is
Options- 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.
- Correct Answer
- all the above.
- 1. A star may culminate at zenith if its declination is
Options- A. greater than the longitude of the place
- B. less than the latitude of the place
- C. equal to the latitude of the place
- D. none of these. Discuss
- 2. Rotation of the camera at exposure about its vertical axis, is known as
Options- A. swing
- B. tilt
- C. tip
- D. none of these. Discuss
- 3. An aerial photograph may be assumed as
Options- A. parallel projection
- B. orthogonal projection
- C. central projection
- D. none of these. Discuss
- 4. At eastern elongation, the pole star moves
Options- A. eastward
- B. westward
- C. northward
- D. southward. Discuss
- 5. The following points form a pair of homologous points :
Options- A. Photo principal point and ground principal point
- B. Photo isocentre and ground isocentre
- C. Photo plumb point and ground plumb point
- D. all the above. Discuss
- 6. The flying height of the camera is 1, 000 m above mean ground level, the distance of the top of a Minar from a nadir point is 10 cm and the relief displacement of Minar is 7.2 mm. The height of the Minar, is
Options- A. 52 m
- B. 62 m
- C. 72 m
- D. 82 m. Discuss
- 7. The main object of the astronomer to obtain
Options- A. astronomical latitude
- B. astronomical longitude
- C. astronomical bearing
- D. all of these. Discuss
- 8. The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as
Options- A. ground principal point
- B. ground plumb point
- C. iso-centre
- D. perspective centre. Discuss
- 9. Spring tides are caused when
Options- 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. Discuss
- 10. By applying clockwise swing to right projector, maximum y-parallax is introduced in the model at
Options- A. position 1
- B. position 2
- C. position 4
- D. position 6. Discuss
Advanced Surveying problems
Search Results
Correct Answer: equal to the latitude of the place
Correct Answer: swing
Correct Answer: central projection
Correct Answer: northward
Correct Answer: all the above.
Correct Answer: 72 m
Correct Answer: all of these.
Correct Answer: ground plumb point
Correct Answer: solar tidal force and lunar tidal force both coincide
Correct Answer: position 1
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