131. The permissible error in chaining for measurement with chain on rough or hilly ground is
132. The point where vertical line passing through the perspective centre intersects the plane of the photograph, is known as
133. The angle between the prolongation of the preceding line and the forward line of a traverse is called
134. To avoid large centering error with very short legs, observations are generally made
135. For which of the following permanent adjustments of theodolite, the spire test is used ?
136. The resection by two point problem as compared to three point problem
137. The angular distance of a heavenly body from the equator, measured along its meridian, is called
138. The station where observations are not made, but the angles at the station are used in triangulation series, is known as
139. The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is
140. The equation which is obtained by multiplying each equation by the coefficient of its unknowns and by adding the equations thus formed, is known as
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