Q. The approximate formula for radial or perpendicular offsets from the tangent, is

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Q. The line of collimation method of reduction of levels, does not provide a check on

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Q. The chaining on sloping ground is

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Q. Profile levelling is usually done for determining

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Q. For indirect ranging, number of ranging rods required, is

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Q. Correction per chain length of 100 links along a slope having a rise of 1 unit in n horizontal units, is

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Q. The ratio of the distances at which a stated length can be distinguished by the telescope and the human eye, respectively, is called

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Q. Bergchrund is a topograhical feature in

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Q. To orient a plane table at a point P roughly south of the mid-point of two inaccessible conical hill stations A and B in the plains, a point C is selected in line with AB and table is oriented at C by bringing ab in line with AB. A ray is then drawn towards P and at P the table is oriented by back ray method. The orientation so obtained, is

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Q. Which one of the following statements is correct ?

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Q. Pick up the correct statement from the following

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Q. The bearing of C from A is N 30° E and from B, 50 metres east of A, is N 60° W. The departure of C from A is

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Q. Pick up the correct statement from the following :

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Q. The rise and fall method of reduction of levels, provides a check on

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Q. In tangential tacheometry, an ordinary level staff is used

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Q. The instrument which is used in plane tabling for obtaining horizontal and vertical distances directly without resorting to chaining, is known as

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Q. While surveying a plot of land by plane tabling, the field observations

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Q. If vertical angles of inclined sights do not exceed 10° and non-verticality of the staff remains within 1°, stadia system of tacheometric observations are made on

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Q. If the length of a chain line along a slope of θ° is l, the required slope correction is

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Q. The sag of 50 m tape weighing 4 kg under 5 kg tension is roughly

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