The rise and fall method_______________?
(A) is less.accurate than height of instrument method
(B) is not suitable for levelling with tilting levels
(C) provides a check on the reduction of intermediate point levels
(D) quicker and less tedious for large number of intermediate sights
Three point problem can be solved by_________________?
(A) Tracing paper method
(B) Bessels method
(C) Lehman’s method
(D) all of the above
Intersection method of detailed plotting is most suitable for________________?
(A) forests
(B) urban areas
(C) hilly areas
(D) plains
Benchmark is established by________________?
(A) hypsometry
(B) barometric levelling
(C) spirit levelling
(D) trigonometrical levelling
A series of closely spaced contour lines represents a___________________?
(A) steep slope
(B) gentle slope
(C) uniform slope
(D) plane surface
Closed contours, with higher value inwards, represent a_______________?
(A) depression
(B) hillock
(C) plain surface
(D) none of the above
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 ?
(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_______________?
(A) ranging
(B) centring
(C) horizontal control
(D) vertical control
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