What is the angle of intersection of a contour and a ridge line?
A0°
B90°
C180°
D270°
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
The bench marks used in small levelling are:
An imaginary line joining the points of equal elevation on the earth represents:
The direction of true meridian at a station is..............................
Cumulative errors are proportional to:
Which one of the following is not a working operation of a plane table?