Direct method of contouring is_________________?
A. a quick method
B. adopted for large surveys only
C. most accurate method
D. suitable for hilly terrains
The correction for sag is_________________?
A. always additive
B. always subtractive
C. always zero
D. sometimes additive and sometimes subtractive
Which of the following methods of offsets involves less measurement on the ground?
A. method of perpendicular offsets
B. method of oblique offsets
C. method of ties
D. all involve equal measurement on the ground
The allowable length of an offset depends upon the______________?
A. degree of accuracy required
B. method of setting out the perpendiculars and nature of ground
C. scale of plotting
D. all of the above
For a well-conditioned triangle, no angle should be less than______________?
A. 20°
B. 30°
C. 45°
D. 60°