Home electrical problems start an estimated 53,600 fires each year, according to the Electrical Safety Foundation International. These fires cause more than 500 deaths and 1,400 injuries, and account for more than $1.4 billion in property damage. Many home electrical fires, however, can be prevented if you’re able to recognize and......
Levelling Terms, Levelling Instruments, Levelling Staff, Levelling Methods and Uses of LevellingLevelling Terms, Levelling Instruments, Levelling Staff, Levelling Methods and Uses of Levelling
January 30, 2019January 30, 2019
Levelling is known as the Elevation measurements involve measurements in vertical plane. It may be defined as the art of determining the elevations of given points above or below a datum line or establishing given points of required heights above or below the datum line. TERMS USED IN LEVELLING Before studying......
Compass Surveying and How to use a CompassCompass Surveying and How to use a Compass
January 23, 2019January 23, 2019
Compass is an instrument which can be used to measure the direction of a survey line with respect to magnetic north-south. The magnetic north-south direction which is the reference direction is called meridian (reference direction) and the angle between the line and the meridian is called bearing. Use of compass for......
Plane Table Surveying, Its Accessories & Working Operations of a Plane TablePlane Table Surveying, Its Accessories & Working Operations of a Plane Table
January 23, 2019January 23, 2019
The most commonly used plane table It consists of a well-seasoned wooden table Top mounted on a tripod. The table top can rotate about vertical axis freely. Whenever necessary table can be clamped in the desired orientation. The table can be levelled by adjusting tripod legs. ACCESSORIES OF A PLANE TABLE......
Chain Surveying – Instruments used in ChainingChain Surveying – Instruments used in Chaining
December 7, 2018December 7, 2018
Chain survey is suitable when Area to be surveyed is comparatively small and the Ground is fairly level. Chain survey can also be used when the Area is open and Details to be filled up are simple and less. In chain surveying only linear measurements are made i.e. no angular measurements......