1).
Hydrographic surveys deal with the mapping of
A   large water bodies   
B   heavenly bodies   
C   mountaineous region   
D   canal system   
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    . The second term may be neglected if the value of h in a 20 m distance is less than
A    m   
B   1m   
C   2m   
D   3m   
ANS: D - 3m

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3).
An ideal vertical curve to join two gradients, is
A   circular   
B   parabolic   
C   elliptical   
D   hyperbolic   
E   none of these.   
ANS: B - parabolic

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4).
Pick up the correct statement from the following :
A   the eyepiece plays no part in defining the line of sight   
B   the diaphragm plays no part in defining the line of sight   
C   the optical centre of the objective plays no part in defining the line of sight   
D   none of these.   
ANS: A - the eyepiece plays no part in defining the line of sight

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6).
The radius of curvature of the arc of the bubble tube is generally kept
A   10 m   
B   20 m   
C   50m   
D   100 m   
ANS: D - 100 m

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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
A   573 S/R   
B   573 R/S   
C   171.9 S/R   
D   1718.9 R/S   
E   1718.9 S/R.   
ANS: E - 1718.9 S/R.

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8).
The real image of an object formed by the objective, must lie
A   in the plane of cross hairs   
B   at the centre of the telescope   
C   at the optical centre of the eye-piece   
D   anywhere inside the telescope.   
ANS: A - in the plane of cross hairs

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9).
In chain surveying tie lines are primarily provided
A   to check the accuracy of the survey   
B   to take offsets for detail survey   
C   to avoid long offsets from chain lines   
D   to increase the number of chain lines.   
ANS: C - to avoid long offsets from chain lines

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