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37.

In an internal focussing type of telescope, the lens provided is                        
A. concave B. convex
C. plano-convex D. plano-concave



38.

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



39.

In the double application of principle of reversion, the apparent error is                        
A. equal to true error B. half the true error
C. two times the true error D. four times the true error




40.

In the prismatic compass                        
A. the magnetic needle moves with the box B. the line of the sight does not move with the box
C. the magnetic needle and graduated circle do not move with the box D. the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction



41.

In the quadrantal bearing system, a whole circle bearing of 293° 30' can be expressed as                        
A. W23°30'N B. N66°30'W
C. S113°30'N D. N23°30'W



42.

Intersection method of detailed plotting is most suitable for                        
A. forests B. urban areas
C. hilly areas D. plains



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