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Civil Engineering - Advanced Surveying

Exercise : Advanced Surveying - Section 3
41.
Sidereal day
is the period of time taken by the earth in making a complete rotation with reference to stars
is slightly shorter than an ordinary solar day
is divided into the conventional hours, minutes and seconds
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Pick up the correct statement for horizontal photographs.
Parallel lines do not appear parallel in central projection
The two sides of a road meet at the vanishing point
The lines parallel to the negative plane are projected as parallel lines
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
If the altitudes of a star at its upper and lower transits are 60° 30' and 19° 30' respectively, the latitude of the place, is
30°
35°
40°
45°.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
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
principal point
isocentre
plumb point
perspective centre.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
In a truly vertical photograph,
principal point coincides the isocentre
iso-centre coincides the plumb point
plumb point coincides the principal point
principal point, iso-centre and plumb point coincide
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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