Civil Engineering :: Advanced Surveying
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In field astronomy, the quantities observed are entirely
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The orthogonal projection of the perspective centre on a tilted photograph, is called
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The principal plane contains
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The point where vertical line passing through the perspective centre intersects the plane of the photograph, is known as
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Pick up the correct statement from the following :
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An aerial photograph may be assumed as
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If the equatorial distance between two meridians is 100 km, their distance at 60° latitude will be
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The rate of change of parallax dp/dh with respect to change in h, may be expressed as
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The displacement of the pictured position of a point of h elevation on a vertical photograph taken with a camera of 30 cm focal length, from an altitude of 3000 m, is
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The net ground area of a vertical photograph 20 cm x 20 cm on scale 1 : 10,000 having overlaps 60% and 30%, is
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A.
Aerial photographs may be either vertical or oblique
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B.
Vertical photographs are taken with the axis of camera pointing vertically downward
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C.
Vertical photographs are used for most accurate maps
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D.
On oblique photographs, scale variation is larger as compared to that of vertical photographs
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E.
all the above.
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