Q. For any star to be a circumpolar star, its

View solution

Q. The elevation of the star at elongation is obtained by

View solution

Q. The necessary geometrical condition for triangulation adjustment, is :

View solution

Q. Assuming human normal vision distance 25 cm, smallest measurable angle 20", and introcular distance 6.5 cm, the smallest depth to be discerned is

View solution

Q. The main object of the astronomer to obtain

View solution

Q. If f is the focal length of the camera lens and θ is the angle of tilt, the distance of the plumb point from the principal point will be

View solution

Q. Pick up the incorrect statement from the following. High oblique photographs

View solution

Q. The average eye base is assumed as

View solution

Q. Pick up the correct statement from the following :

View solution

Q. Pick up the incorrect statement from the following :

View solution

Q. To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30, 000, with a camera of 30 cm focal length, the flying height is

View solution

Q. If the image of a triangulation station of R.L. 500 m is 4 cm from the principal point of a vertical photo taken from an altitude of 2000 m, above datum, the height displacement will be

View solution

Q. An aerial photograph may be assumed as

View solution

Q. If the equatorial distance between two meridians is 100 km, their distance at 60° latitude will be

View solution

Q. The rate of change of parallax dp/dh with respect to change in h, may be expressed as

View solution

Q. The displacement of the pictured position of a point of h elevation on a vertical photograph taken with a camera of 30 cm focal length, from an altitude of 3000 m, is

View solution

Q. The net ground area of a vertical photograph 20 cm x 20 cm on scale 1 : 10,000 having overlaps 60% and 30%, is

View solution

Q. Rotation of the camera at exposure about its vertical axis, is known as

View solution

Q. The difference of height of two points whose parallax difference is 0.8 mm on a pair of stereo pair taken from a height H is 100 m. If mean photo base is 95.2 mm, the flying height is

View solution

Q. 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

View solution