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Advanced Surveying
Comments
Question
Rotation of the camera at exposure about its vertical axis, is known as
Options
A. swing
B. tilt
C. tip
D. none of these.
Correct Answer
swing
Advanced Surveying problems
Search Results
1. An aerial photograph may be assumed as
Options
A. parallel projection
B. orthogonal projection
C. central projection
D. none of these.
Show Answer
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Discuss
Correct Answer: central projection
2. At eastern elongation, the pole star moves
Options
A. eastward
B. westward
C. northward
D. southward.
Show Answer
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Correct Answer: northward
3. 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.
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Correct Answer: all the above.
4. 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
Options
A. 1 cm
B. 2 cm
C. 3 cm
D. 4 cm
E. 5 cm.
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Correct Answer: 4 cm
5. The station where observations are not made, but the angles at the station are used in triangulation series, is known as
Options
A. satellite station
B. subsidiary station
C. pivot station
D. main station.
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Correct Answer: pivot station
6. 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.
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Correct Answer: equal to the latitude of the place
7. 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.
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Correct Answer: all the above.
8. 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.
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Correct Answer: 72 m
9. The main object of the astronomer to obtain
Options
A. astronomical latitude
B. astronomical longitude
C. astronomical bearing
D. all of these.
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Correct Answer: all of these.
10. 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.
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Correct Answer: ground plumb point
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