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Civil Engineering
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Advanced Surveying
Comments
Question
At eastern elongation, the pole star moves
Options
A. eastward
B. westward
C. northward
D. southward.
Correct Answer
northward
Advanced Surveying problems
Search Results
1. 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.
Show Answer
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Discuss
Correct Answer: all the above.
2. 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
3. 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
4. The orthogonal projection of the perspective centre on a tilted photograph, is called
Options
A. nadir
B. isocentre
C. principal point
D. plumb point.
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Correct Answer: principal point
5. The position of the sun when its north declination is maximum is known as
Options
A. vernal equinox
B. Autumnal equinox
C. summer solstice
D. winter solstice.
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Correct Answer: summer solstice
6. An aerial photograph may be assumed as
Options
A. parallel projection
B. orthogonal projection
C. central projection
D. none of these.
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Correct Answer: central projection
7. Rotation of the camera at exposure about its vertical axis, is known as
Options
A. swing
B. tilt
C. tip
D. none of these.
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Correct Answer: swing
8. 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
9. 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.
10. 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.
Show Answer
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Correct Answer: 72 m
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