- (A) error due to eccentricity of verniers
- (B) error due to displacement of station signals
- (C) error due to wrong adjustment of line of collimation and trunnion axis
- (D) error due to inaccurate graduation
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- (A) error due to curvature only
- (B) error due to refraction only
- (C) error due to both curvature and re-fraction
- (D) none of the above
- (A) true R.L
- (B) more than true R.L
- (C) less than true R.L
- (D) none of the above
- (A) increasing the diameter of the tube
- (B) decreasing the length of bubble
- (C) increasing the viscosity of liquid
- (D) decreasing the radius of curvature of tube
- (A) completely eliminates curvature correction
- (B) partially eliminates curvature correction
- (C) adds to the curvature correction
- (D) has no effect on curvature correction
- (A) 98.70
- (B) 100.00
- (C) 102.30
- (D) 103.30
- (A) 99.345 m
- (B) 100.345 m
- (C) 100.655m
- (D) 101.870m
- (A) foresight only
- (B) backsight only
- (C) foresight and backsight
- (D) foresight and intermediate sight
- (A) error due to imperfect graduations
- (B) error due to eccentricity of verniers
- (C) error due to imperfect adjustment of plate levels
- (D) error due to line of collimation not being perpendicular to horizontal axis
- (A) tightening the capstan-headed nuts of level tube
- (B) measurement of horizontal angles only
- (C) measurement of vertical angles only
- (D) measurement of both horizontal and vertical angles
