Check on open traverse

In open traverse the measurements cannot be checked directly. But some held measurements can be taken to check the accuracy of the work. The methods are discussed below; cut-off lines are taken between some intermediate satiation of the open traverse. Suppose ABCDEFG represents an open traverse. Let AD and DG be the cu-off lines. The lengths and magnetic bearing of the cut-off lines are measured accurately.Technical Data used in the field explained in civil surveyor course in rawalpindi. After plotting the traverse, the distance and bearing are noted from the map. These distance and bearings should tally with the actual records obtained from the field.

Suppose ABCDEF is an open traverse. A permanent point P is selected on the side of it. The magnetic bearings of this point are taken from the traverse satiations A,B,C,D etc. if the survey is cared out accurately and so is the plotting, all the measured bearings of P when plotted should meet at die point P. Some more details of civil surveyor course in rawalpindi are as under. the permanent point P is known the ‘auxiliary point’. In the compass, the readings are taken with the help of a prism; the following are the essential parts of this compass.

The compass box is a circular metallic box ‘the mental should be non-magnetic, of diameter 8 to 10 cm. A pivot with a sharp point is provided it the center of the box.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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