1: When the contours intermix i.e. unite at a place that place is known as:
A: Cliff , B: Over hanging cliff C: Ridge D: Valley
2: Two contours of different elevations do not cross each other except in case of a :
A: Cliff B: Ridge C: Overhanging Cliff D: Valley
3:The Limiting length of an Offset should be:
A: 5 m B: 15m C:30m D: 50 m
4:In levelling the correction for curvature ( in meters ) is equal to:
A: 0.00785 Square of D , B: 0.0785 Square of D , C: 0.0112 Square of D , D:0.0673 Square of D
Where D is distance from the level to the staff reading in meters
5: The vertical distance between two consecutive contours is called: Contour Interval
6: Reduced level of apoint is its elevatiob with refernce to :Datum Level
7:The error which is not completely eliminated in reciprocal levelling : Error Due to Refractionn
8: THE first reading from a level station is: Back Sight
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