The angle of intersection of a contour and a ridge line is
A30°
B45°
C60°
D90°
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
In.................. type level, the line of collimation is not at right angles to the vertical axis if the instrument is permanent adjustment.
Radiation in plane table survey is the best suited when
In an IC engine, spark plug is used in:(
Fire load of a building is a measure of
Plaster of paris is obtained from the calcination of :