Q. The indirect method serves as a basis for the interpolation of contours.

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Q. The indirect method, guide points need not necessarily be on the contours.

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Q. In indirect method, each contour is located by determining the positions of a series of points through which the contour passes.

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Q. In a direct method, the contour to be plotted is actually traced on the ground.

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Q. From a single instrument station, several points at a given gradient can be located.

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Q. To locate the contour gradient, the level is set at a commanding position and reading on the staff at the second point is taken.

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Q. If the inclination of contour gradient is given, its direction from a point may be easily located either on the map or on the ground.

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Q. If a level is used to locate the contour gradient, it is not necessary to set the level on the contour gradient.

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Q. Which of the following cannot be used to locate the contour gradient in the field?

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Q. _______ is a line lying throughout on the surface of the ground and preserving a constant inclination to the horizontal.

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Q. In cross sections method, If there are irregularities in the surface between two cross lines, additional guide points may be located on intermediate cross lines.

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Q. In the case of hilly terrain, the tacheometric method may be used with advantages.

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Q. In cross sections method, cross sections are run traverse to the centre line of a road, railway or canal etc.

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Q. In which of the following methods Interpolation is done with the help of a tracing paper?

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Q. Which of the following Interpolation method is accurate and time consuming?

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Q. The positions of contour points between the guide points are located by _______

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Q. Which of the following methods is extremely rough and is used for small scale work only?

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Q. Which of the following is not a chief method of Interpolation?

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Q. The methods of interpolation are based on the assumption that the slope of ground between the two points is uniform.

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Q. What is the process of spacing the contours proportional between the plotted ground points established by indirect methods?

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