The imaginary line passing through the intersection of cross hairs and the optical center of the objective, is known as

Related MCQs

• An imaginary line joining the point of intersection of the cross-hairs of the diaphragm and the optical centre of the object glass, is known as
• Imaginary line passing through points having equal magnetic declination is termed as
• When the image formed by the objective is not situated in the plane of cross-hairs,
• The image formed by the objective in the plane of cross hairs is
• While viewing through a level telescope and moving the eye slightly, a relative movement occurs between the image of the levelling staff and the cross hairs. The instrument is
• Longest survey line passing through the center of the area to be surveyed is called as…..
• The cross hairs in the surveying telescope are placed
• Cross hairs in surveying telescopes, are fitted
• When the cross-hairs are not clearly visible,
• In the surveying telescopes, cross hairs are fitted in