Level line

Any line lying on a level surface is called a level line. This line it normal to the plumb line (direction of gravity) at all points. Horizontal plane; any plane tangential to the level surface at any points is known as the horizontal plane, it is perpendicular tom the plumb line which indicates the direction of gravity . Technical Data used in the field explained in civil surveyor course in rawalpindi. Horizontal line; any line lying the horizontal plane is said to be a horizontal line. It is straight line tangential to the level line.

Vertical line; the direction indicate by a plumb line (the direction of gravity) is known as the vertical line. This line is perpendicular to the horizontal line. Vertical plane; any plane passing through the vertical line is known as the vertical plane. Some more details of civil surveyor course in rawalpindi are as under. Datum surface or line; this is any imaginary level surface or level linen from which the vertical distance of different points (above or below this line) are measured. In India the datum adopted for the great trigonometrically survey (GTS) is the mean sea level (MSL) at Karachi.

Reduced level (RL) the vertical distance of a point above or below the datum line is known as the reduced level (RL) of that point. The RL of a point may be positive or negative according as the point is above or below the datum. TSK Training for Skills and Knowledge is the best institute in Rawalpindi Islamabad for Pakistani Students who wants to join civil surveyor course in islamabad.

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