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Civil Engineering
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Advanced Surveying
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Question
The method of surveying by triangula-tion was first introduced by the Dutchman Snell in
Options
A. 1600
B. 1615
C. 1630
D. 1650
E. 1680.
Correct Answer
1615
Advanced Surveying problems
Search Results
1. The negative sign is assigned to
Options
A. reduction to mean sea level
B. correction for horizontal alignment
C. correction for slope
D. correction for slope
E. all the above.
Show Answer
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Discuss
Correct Answer: all the above.
2. The point on the photograph where bisector between the vertical line through optical centre of the camera lens and the plate perpendicular meets, is known as
Options
A. principal point
B. isocentre
C. plumb point
D. perspective centre.
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Correct Answer: isocentre
3. The difference of parallax for a given difference in elevation is independent of
Options
A. focal length of the camera
B. overall size of the photo graphs
C. percentage of overlap
D. all the above.
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Correct Answer: all the above.
4. The prime vertical passes through
Options
A. the east point of the horizon
B. the west point of the horizon
C. the zenith point of the observer
D. the nadir point of horizon
E. all the above.
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Correct Answer: all the above.
5. Pick up the in-correct statement from the folowing :
Options
A. Correction for refraction is always negative
B. Correction for parallax is always positive
C. Correction for semi-diameter is always negative
D. Correction for dip is always negative
E. None of these.
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Correct Answer: Correction for semi-diameter is always negative
6. The angular distance of a heavenly body from the equator, measured along its meridian, is called
Options
A. declination
B. altitude
C. zenith distance
D. co-latitude.
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Correct Answer: declination
7. Triangulation surveys are carried out for providing
Options
A. planimetric control
B. height control
C. both planimetric and height control
D. none of these.
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Correct Answer: both planimetric and height control
8. The latitude of a place was obtained by subtracting the declination of a star from its zenith distance, the observed star was between
Options
A. horizon and equator
B. zenith and pole
C. equator and zenith
D. pole and horizon.
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Correct Answer: horizon and equator
9. When a star is between the pole and the horizon, the relationship between latitude (?), zenith distance (
z
) and declination ?, is
Options
A. ? =
z
+ ?
B. ? = ? -
z
C. ? = 180° - (
z
+ ?)
D. ? = (
z
+ ?) - 180°.
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Correct Answer: ? = 180° - (
z
+ ?)
10. The station pointer is generally used in
Options
A. Triangulation surveying
B. Astronomical surveying
C. Hydrographical surveying
D. Photogrammetric surveying.
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Correct Answer: Hydrographical surveying
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