1.Dumpy level is most suitable when

2.If the staff is not held vertical at a level�ling station, the reduced level calculated from the observation would be

3.A series of closely spaced contour lines represents a

4.In the cross-section method of indirect contouring, the spacing of cross-sections depends upon i) contour interval ii) scale of plan iii) characteristics of ground The correct answer is

5.Contour interval is