Closed contours, with higher value inwards, represent a_______________?
A. depression
B. hillock
C. plain surface
D. none of the above
Surveying
Direct method of contouring is_________________?
Direct method of contouring is_________________?
A. a quick method
B. adopted for large surveys only
C. most accurate method
D. suitable for hilly terrains
Which of the following methods of con-touring is most suitable for a hilly terrain ?
Which of the following methods of con-touring is most suitable for a hilly terrain ?
A. direct method
B. square method
C. cross-sections method
D. tacheometric method
In direct method of contouring, the process of locating or identifying points lying on a contour is called_______________?
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
Select the correct statement_______________?
Select the correct statement_______________?
A. A contour is not necessarily a closed curve
B. A contour represents a ridge line if the concave side of lower value con¬tour lies towards the higher value contour
C. Two contours of different elevations do not cross each other except in case of an overhanging cliff
D. All of the above statements are correct
An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as__________________?
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
The difference of levels between two stations A and B is to be determined. For best results, the instrument station should be_______________?
The difference of levels between two stations A and B is to be determined. For best results, the instrument station should be_______________?
A. equidistant from A and B
B. closer to the higher station
C. closer to the lower station
D. as far as possible from the line AB
Sensitiveness of a level tube is designated by______________?
Sensitiveness of a level tube is designated by______________?
A. radius of level tube
B. length of level tube
C. length of bubble of level tube
D. none of the above
Dumpy level is most suitable when______________?
Dumpy level is most suitable when______________?
A. the instrument is to be shifted frequently
B. fly levelling is being done over long distance
C. many readings are to be taken from a single setting of the instrument
D. all of the above
Contour interval is_______________?
Contour interval is_______________?
A. inversely proportional to the scale of the map
B. directly proportional to the flatness of ground
C. larger for accurate works
D. larger if the time available is more