The rise and fall method of levelling provides a complete check on_______________?
The rise and fall method of levelling provides a complete check on_______________? A. backsight B. intermediate sight C. foresightD. all of the above
The rise and fall method of levelling provides a complete check on_______________? A. backsight B. intermediate sight C. foresightD. all of the above
In an internal focussing type of telescope, the lens provided is_______________? A. concave B. convex C. plano-convex D. plano-concave
The error due to eccentricity of inner and outer axes can be eliminated by________________? A. reading both verniers and taking the mean of the two B. taking both face observations and taking the mean of the two C. double sighting…
The adjustment of horizontal cross hair is required particularly when the instrument is used for_____________? A. leveling B. prolonging a straight line C. measurement of horizontal angles D. all of the above
The cross hairs in the surveying telescope are placed_____________? A. midway between eye piece and objec¬tive lensB. much closer to the eye-piece than to the objective lens C. much closer to the objective lens than to the eye piece D.…
Which of the following errors is not eliminated by the method of repetition of horizontal angle measurement ? A. error due to eccentricity of verniersB. error due to displacement of station signals C. error due to wrong adjustment of line…
For which of the following permanent adjustments of theodolite, the spire test is used ? A. adjustment of plate levels B. adjustment of line of sightC. adjustment of horizontal axis D. adjustment of altitude bubble and vertical index frame
If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated____________? A. on its outer sdle with a relative motion between the vernier and graduated scale of lower plate B. on its outer…
Size of a theodolite is specified by________________? A. the length of telescope B. the diameter of vertical circleC. the diameter of lower plate D. the diameter of upper plate
A telescope is said to be inverted if its______________? A. vertical circle is to its right and the bubble of the telescope is down B. vertical circle is to its right and the bubble of the telescope is up C.…