Civil Engineering :: Surveying
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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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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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The bubble tube is nearly filled with
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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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In a constant level tube, size of the bubble remains constant because upper wall is
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Prismatic compass is considered more accurate than a surveyor's compass, because
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In reciprocal levelling, the error which is not completely eliminated, is due to
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In tacheometrical observations, vertical staff holding is generally preferred to normal staffing, due to
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Removal of parallax, may be achieved by focussing
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Pick up the correct statement from the following :
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A.
half the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets, and thrice the sum of the even offsets |
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B.
one third the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets |
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C.
one third the width of a strip, multiplied by the sum of two extreme offsets, four times the sum of the remaining odd offsets, and twice the sum of the even offsets |
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D.
one sixth the width of a strip, multiplied by the sum of the two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets |
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E.
none of these |