Q. The true meridian of a place is the line in which earth's surface is intersected by a plane through

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Q. The least count of a vernier scale is

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Q. Prismatic compass is considered more accurate than a surveyor's compass, because

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Q. In reciprocal levelling, the error which is not completely eliminated, is due to

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Q. In tacheometrical observations, vertical staff holding is generally preferred to normal staffing, due to

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Q. Removal of parallax, may be achieved by focussing

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Q. Pick up the correct statement from the following :

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Q. The curve composed of two arcs of different radii having their centres on the opposite side of the curve, is known

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Q. The ratio of the angles subtended at the eye, by the virtual image and the object, is known as telescope's

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Q. The bubble tube is nearly filled with

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Q. Simpson's rule for calculating areas states that the area enclosed by a curvilinear figure divided into an even number of strips of equal width, is equal to

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Q. In a constant level tube, size of the bubble remains constant because upper wall is

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Q. The direction of steepest slope on a contour, is

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Q. Back bearing of a line is equal to

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Q. In an internal focusing telescope

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Q. The longitudinal section of the surface of bubble tube is

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Q. Imaginary line passing through points having equal magnetic declination is termed as

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Q. The reduced bearing of a line is N 87° W. Its whole circle bearing is

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Q. Surveys which are carried out to depict mountains, rivers, water bodies, wooded areas and other cultural details, are known as

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Q. Which of the following introduces an error of about 1 in 1000 if 20 m chain is used

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