Q. In stadia method, diaphragm in tachometer is provided with there stadia hairs and stadia hair reading is taken by looking through a diaphragm.

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Q. Stadia method is based on the principle that ratio of perpendicular to the base is constant.

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Q. If d = 2.94 km, what would be the combined correction for curvature and refraction?

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Q. Find the value of R.L, if B.M = 400 m, B.S = 1.142 m, F.S = 2.121 by using rise and fall method?

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Q. Find the correction for curvature and correction for refraction, if the value of d = 2400 m?

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Q. The combined correction for curvature and refraction can be given as _______

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Q. If the R.L of a B.M is 100m and back sight is 1.225m, find the H.I at the station?

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Q. If the staff at the station point is not held vertically, the R.L at the observation would be ______________

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Q. Which of the following represents a form of Bench Mark (B.M)?

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Q. Rise and fall method provides check in calculations for all sights.

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Q. Which of the following indicates the formula for arithmetic check?

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Q. The formula for calculating R.L can be given as _________

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Q. While doing construction work, which among the following is more suitable?

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Q. Height of the Instrument method is a less tedious and simple process.

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Q. Which type of levelling is done on the phenomenon, the difference in elevation between two points is proportional to the difference in atmospheric pressure at these points?

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Q. What is the error in mm for precise levelling for benchmarks of widely distributed points?

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Q. What is the error in mm for accurate levelling for principal benchmarks or for extensive surveys?

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Q. What is the error in mm for ordinary levelling for location and construction surveys?

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Q. What is the error in mm for rough levelling for reconnaissance or preliminary surveys?

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Q. What is the error in feet for precise levelling for benchmarks of widely distributed points?

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