Compass traversing

The line or plane passing through the geographical north pole, geographical south pole and any point on the surface of the earth, is known as the true meridian, or geographical meridian, the true meridian at a station is constant the true meridian passing through different points on the earth’s surface are not parallel, but converge towards the poles. But for surveys in small areas, the true meridians passing through different points are assumed parallel. Technical Data used in the field explained in civil surveyor course in Rawalpindi. angle between the true meridian and a line is known as ‘true bearing ‘of the line. It is also known as the ‘azimuth’.

When a magnetic needle is suspended freely and balanced properly, unaffected by magnetic substances, it indicates a direction. This direction is known as the ‘magnetic meridian’. The angle between the magnetic meridian and a line is known as the ‘magnetic’ bearing or simply the bearing of the tine. Some more details of civil surveyor course in Rawalpindi are as under. Sometimes for the survey of a small area, a convenient direction is assumed as a meridian, known as the ‘arbitrary meridian’.

Sometimes the starting line of a survey is taken as the arbitrary meridian. The angle between the arbitrary meridian and a line is known as the ‘arbitrary bearing’ of the line. 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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