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________________?

Related Mcqs:

Normal tension is that pull which_______________?

A. is used at the time of standardising the tape B. neutralizes the effect due to pull and sag C. makes the correction due to sag equal to zero D. makes the correction due to pull equal to zero...

Size of a theodolite is specified by________________?

A. the length of telescope B. the diameter of vertical circle C. the diameter of lower plate D. the diameter of upper plate...

If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be_______________?

A. true R.L B. more than true R.L C. less than true R.L D. none of the above...

Sensitiveness of a level tube is designated by______________?

A. radius of level tube B. length of level tube C. length of bubble of level tube D. none of the above...

Benchmark is established by________________?

A. hypsometry B. barometric levelling C. spirit levelling D. trigonometrical levelling...