Advanced Surveying - Section 1

The movement of the projector in y-direction, introduces in the model a y-parallax

Triangulation surveys are carried out for locating

Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel

If θ and δ be the latitude of an observer and declination of a heavenly body respectively, the upper culmination of the body will be south of zenith if its zenith distance, is

The circle in which a plane tangent to the earth's surface at the point of observation, intersects the celestial sphere, is called

Pick up the correct  statement from the following :

If v, t and  are the ground speed of the aircraft, the shutter speed of the camera and the scale of the photograph respectively, then the amount of image displacement

The angle between the direction of star and the direction of earth's axis of rotation is called