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Surveying - Interview Questions and Answers

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71. In direct method of contouring, the process of locating or identifying points lying on a contour is called
A. ranging
B. centring
C. horizontal control
D. vertical control
Explanation:
72. Direct method of contouring is
A. a quick method
B. adopted for large surveys only
C. most accurate method
D. suitable for hilly terrains
Explanation:
73. Refraction correction
A. completely eliminates curvature correction
B. partially eliminates curvature correction
C. adds to the curvature correction
D. has no effect on curvature correction
Explanation:
74. An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as
A. contour line
B. horizontal equivalent
C. contour interval
D. contour gradient
Explanation:
75. Closed contours, with higher value inwards, represent a
A. depression
B. hillock
C. plain surface
D. none of the above
Explanation:
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