Least count of self-reading staff is…..

Related MCQs

• When a staff is sighted through the telescope, a certain length of staff is intercepted by the stadia lines. The staff intercept varies with the distance at which the staff is held.
• Least count of target staff is…..
• It is required to find the difference in elevation between two points A and B. During levelling, it is found that the staff reading at B is more than the staff reading at A. It indicates that the point A is
• When the effect of refraction is taken into account in levelling, the true staff reading is obtained by subtracting the correction for refraction from the observed staff reading.
• If x is the smallest division on the main scale and n are the number of divisions on the vernier, then the least count of the vernier is
• Which of the following angles can be set out with the help of French cross staff?
• Cross staff is an instrument used for
• If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be
• As applied to staff readings, the corrections for curvature and refraction are respectively The above table shows a part of a level field book. The value of X should be
• If the horizontal distance between the staff point and the point of observation is d, then the error due to curvature of earth is proportional to