Q. A well conditioned triangle has no angle less than

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Q. Contour lines of different elevations can unite to form one line, only in the case of

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Q. The line of sight is kept as high above ground surface as possible to minimise the error in the observed angles due to

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Q. Number of subdivisions per metre length of a levelling staff is

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Q. A lemniscate curve between the tangents will be transitional throughout if the polar deflection angle of its apex, is

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Q. Pick up the correct statement from the following :

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Q. Prolongation of chain line across an obstruction in chain surveying, is done by

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Q. Check lines (or proof lines) in Chain Surveying, are essentially required

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Q. While measuring the distance between two points along upgrade with the help of a 20 m chain, the forward end of the chain is shifted forward through a distance

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Q. Subtense tacheometry is generally preferred to if ground is

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Q. For high sensivity of the bubble tube

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Q. Short offsets are measured with

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Q. The operation of revolving a plane table about its vertical axis so that all lines on the sheet become parallel to corresponding lines on the ground, is known

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Q. If a linear traverse follows a sharp curve round a large lake where it is difficult to have long legs, the accuracy of the traverse may be improved by

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Q. Perpendicular offset from a tangent to the junction of a transition curve and circular curve is equal to

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Q. Rankine's deflection angle in minutes is obtained by multiplying the length of the chord by

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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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