One of the following surveying instruments is used to set...
One of the following surveying instruments is used to set out lines at right angles to the main chain line
Optical square
Station pegs
Offset staff
Steel Band
Correct answer is A
Using either the mirror method or the prism square method, the optical square is used to mark out lines at right angles to the main chain line.
The use of the Nile for transportation purpose is limited mainly by? ...
The river marked S has been dammed for Hydroelectric power generation at ...
A typical example of an inland drainage basin in Africa is the? ...
Coastlines washed by cold currents normally have ...
What pollution is caused by all the following except ...
The central landform in the area shown on the map can be described generally as a ...
The nearest planet to the sun is the ...
Which of the following indices is a measure of development? ...