Surveying

Measurements Units Measurement shows dimensions, quality of any object or thing. Units helps us to identify measurements. The word "measurement" comes from the Greek word "metron", which means "limited proportion." Measurement is a technique in which properties of an object are determined by comparing them to a standard. Measurements require tools and provide scientists with a quantity. A quantity describes how much of something there is or how many there are.   The significance of measurement units is:  1.      It helps to quantify any measurement  2.      It provides accuracy in measurement  3.      It helps in conversion of one unit to another. 4.      It helps in understanding any measurement globally.  5.      Measurements can be processed such as adding, multiplying by converting them to the same units. so, it helps in processing and making it more u...

Map  Scale Scale is required on maps to measures and to know the distance between any two points or objects. A scale is the ratio of length between two point on a map to its corresponding distance on the ground. To say that if a map is on the scale 1:25.000 means that a length of 1cm on the map represents 25000 centimeters or 250 m on ground. In other words, 250m distance on ground shown by a length of 1cm on the map. Expression of Scale Scales can be expressed in the following manner: 1) The statement scale 2) The RF / Numerical scale  3) The plain / linear / Graphical scale  1) The statement scale   In this case, the numbers of units on map that represent the corresponding number of units on ground are staled for. e.g.    1cm=200m; 4 cm  = 1 km , one inch to a mile; etc Now-a-day this system is not in more used 2)   The RF / Numerical scale    In this case, the proportion existing between the length on the map ...