An imaginary line tangential to the longitudinal curve of the level at the centre of the tube is called

Related MCQs

• An imaginary line tangential to the longitudinal curve of the bubble tube at its middle point is called
• 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
• A line joining the optical centre of the object glass and the centre of the eye piece, is known as
• An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as
• An imaginary line joining the points of equal elevation on the surface of the earth, represents
• Imaginary line passing through points having equal magnetic declination is termed as
• The imaginary line passing through the intersection of cross hairs and the optical center of the objective, is known as
• The deflection angle for any chord is equal to the deflection angle for the proceeding chord minus the tangential angle for that chord.
• The difference between a level line and a horizontal line is that
• Which line is normal to the level line at a point?