101. Imaginary line passing through points having equal magnetic declination is termed as
102. In case of reduction of levels by the height of instrument method,
103. A theodolite is said to be in perfect adjustment if
104. While rotating the theodolite in the horizontal plane, the bubble of the bubble tube takes up the same position in its tube, it indicates
105. The main plate of a transit is divided into 1080 equal divisions. 60 divisions of the vernier coincide exactly with 59 divisions of the main plate. The transit can read angles accurate upto
106. A traverse deflection angle is
107. While measuring a chain line between two stations A and B intervened by a raised ground
108. The Random errors tend to accumulate proportionally to
109. The true meridian of a place is the line in which earth's surface is intersected by a plane through
110. The least count of a vernier scale is
111. Which one of the following procedures for getting accurate orientation is the most distinctive feature of the art of plane tabling
112. A clinometer is used for
113. Diurnal variation of magnetic declination is
114. The 'fix' of a plane table from three known points, is good, if
115. The construction of optical square is based, on the principle of optical
116. If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as
117. Cross-staff is used for
118. The 'point of curve' of a simple circular curve, is
119. For orientation of a plane table with three points A, B and C, Bessel's drill is
120. The minimum range for sliding the focusing lens in the internal focusing telescope for focusing at all distances beyond 4 m is
121. The formula for the horizontal distances for inclined sights, on staff held normalis
s cos θ + (f + d) cos θ ± h sin θ
122. Ramsden eye-piece consists of
123. The distance between steps for measuring down hill to obtain better accuracy
124. The tangent to the liquid surface in a level tube, is parallel to the axis of the level tube at
125. If α is the angle between the polar ray and the tangent at the point of commencement of a lemniscate curve, the equation of the curve, is