121. Three point problem can be solved by.
Tracing paper method,Bessels method,Lehman's method
122. The size of a plane table is 600 mm x 750 mm
123. The process of determining the locations of the instrument station by drawing resectors from the locations of the known stations is called resection
124. The instrument used for accurate centering in plane table survey is plumbing fork
125. Which of the following methods of plane table surveying is used to locate the position of an inaccessible point ?
intersection
126. The two point problem and three point problem are methods of
resection and orientation
127. The resection by two point problem as compared to three point problem
requires more labour
128. The methods used for locating the plane table stations are
traversing,resection
129. After fixing the plane table to the tripod, the main operations which are needed at each plane table station are
levelling-centering-orientation
130. Bowditch rule is applied to a closed traverse for adjustment of closing error
131. If in a closed traverse, the sum of the north latitudes is more than the sum of the south latitudes and also the sum of west departures is more than the sum of the east departures, the bearing of the closing line is in the
SE quadrant
132. If the reduced bearing of a line AB is N60°W and length is 100 m, then the
latitude and departure respectively of the line AB will be +50m, -86.6 m
133. If the sum of northings of a traverse exceeds the sum of southings by 1 m and
sum of eastings exceeds the sum of westings by 1 m, the resultant closing error and its true bearing respectively are
√2 m,N45°E
134. The angle between the prolongation of the preceding line and the forward line of a traverse is called deflection angle
135. Transit rule of adjusting the consecutive coordinates of a traverse is used where
angular measurements are more accurate than linear measurements
136. The Bowditch method of adjusting a traverse is based on the assumption that
where e₁ and e₂ are errors in linear and angular measurements respectively and l is the length of a line
137. Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations ?
measuring angles to the point from at least two stations
138. Subtense bar is an instrument used for measurement of horizontal distances
in undulated areas
139. Horizontal distances obtained by tacheometric observations
do not require slope and tension corrections
140. The number of horizontal cross wires in a stadia diaphragm is three
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