1). Hydrographic surveys deal with the mapping of
ANS: A - large water bodies
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2).
If h is the difference in level between end points separated by l , then the slope correction is
h in a 20 m distance is less than
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3). An ideal vertical curve to join two gradients, is
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4). Pick up the correct statement from the following :
ANS: A - the eyepiece plays no part in defining the line of sight
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5). The intercept of a staff
ANS: B - is minimum if the staff is held truly normal to the line of sight.
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6). The radius of curvature of the arc of the bubble tube is generally kept
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7). If S is the length of a subchord and R is the radius of simple curve, the angle of deflection between its tangent and sub-chord, in minutes, is equal to
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8). The real image of an object formed by the objective, must lie
ANS: A - in the plane of cross hairs
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9). In chain surveying tie lines are primarily provided
ANS: C - to avoid long offsets from chain lines
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10). Pick up the correct statement from the following :
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.
The second term may be neglected if the value of h in a 20 m distance is less than
m
