91. In observations of equal precision, the most probable values of the observed quantities are those that render the sum of the squares of the residual errors a minimum, is the fundamental principle of
92. Contour interval is
93. Assuming human normal vision distance 25 cm, smallest measurable angle 20", and intraocular distance 6.5 cm, the smallest depth to be discerned is
94. If the distance between the projectors is altered by a movement along X-axis of one projector,
95. Pick up the correct statement from the following:
96. Pick up the incorrect statement from the following:
97. The relief displacement of a building 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is
98. If the true bearing of a line AB is 269° 30′, then the azimuth of the line AB is
99. The orthogonal projection of the perspective centre on a tilted photograph, is called
100. The distance between the projection centre and the photograph, is called
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