Civil Engineering :: Advanced Surveying
-
Rotation of the camera at exposure about horizontal axis normal to the line of flight, is known as
-
If δ is the declination of the star and φ is the latitude of the observer, then the azimuth of the star at elongation is given by
-
The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The declination of the star, is
-
The angle between the observer's meridian and declination circle of a heavenly body, is known as
-
Pick up the correct statement from the following :
-
For plane ground the scale of a vertical photograph will be same as that of a tiled photograph along the photo parallel through
-
The sun's declination remains north between
-
H is the flying height above mean ground level and f is the principal distance of a vertical photograph. The mean scale of the photographs is
Whatsapp
Facebook
. |
A.
The measured stereoscopic base of photographs is obtained by dividing the air base in metres by the mean scale of the photograph
|
|
B.
The difference between the absolute parallax of two points depends upon the difference in their elevations
|
|
C.
The line joining the principal point of a photograph and the transferred principal point of the adjoining photograph, is called stereoscopic base
|
|
D.
all the above.
|
