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Advanced Surveying
Comments
Question
The average eye base is assumed as
Options
A. 58 mm
B. 60 mm
C. 62 mm
D. 64 mm
E. 72 mm.
Correct Answer
64 mm
Advanced Surveying problems
Search Results
1. If the equatorial distance between two meridians is 100 km, their distance at 60° latitude will be
Options
A. 1000 km
B. 800 km
C. 600 km
D. 500 km
E. 400 km.
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Correct Answer: 500 km
2. Assuming human normal vision distance 25 cm, smallest measurable angle 20", and introcular distance 6.5 cm, the smallest depth to be discerned is
Options
A. 0.1 mm
B. 0.5 mm
C. 1.00 mm
D. 1.1 mm.
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Correct Answer: 0.1 mm
3. If
f
is the focal length of the camera lens and ? is the angle of tilt, the distance of the plumb point from the principal point will be
Options
A.
f
sin ?
B.
f
cos ?
C.
f
tan ?
D.
f
sec ?.
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Correct Answer:
f
tan ?
4. The parallax of a point on the photograph is due to
Options
A. ground elevation
B. flying height
C. length of air base
D. focal length of the camera.
E. all the above.
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Correct Answer: all the above.
5. Pick up the incorrect statement from the following :
Options
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.
E. Both (c) and (d) of the above.
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Correct Answer: Longitudes east of Greenwich are taken as negative
6. The latitude of the observer's position, is
Options
A. elevation of the elevated pole
B. declination of the observer's zenith
C. angular distance along the observer's meridian between equator and the observer
D. north or south according as the observer is north of equator or south of equator
E. all the above.
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Correct Answer: all the above.
7. The maximum error in radial line assumption, is
Options
A.
B.
C.
D.
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Correct Answer:
8. 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
9. 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
10. 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
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