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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Q. Ranging is an operation of

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Q. Pick up the correct statement from the following :

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Q. Surveys which are carried out to provide a national grid of control for preparation of accurate maps of large areas, are known

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Q. In a theodolite

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Q. Whole circle bearing of a line is preferred to a quadrantal bearing merely because

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Q. The slope correction for a 3° slope for a length of 100 m, is

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Q. In horizontal angles, the error due to imperfect levelling of the plate bubble is

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Q. Pick up the correct statement from the following :

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