What Is The First Principle Of Surveying?

What are the classification of survey?

Generally, surveying is divided into two major categories: plane and geodetic surveying.

Generally, surveying is divided into two major categories: plane and geodetic surveying.

PLANE SURVEYING is a process of surveying in which the portion of the earth being surveyed is considered a plane..

How do Surveyors survey?

The ubiquitous tool for a survey is called a theodolite, and it’s one job is to measure the horizontal and vertical angles between points. Combine those angles with distances from a chain or tape measure, and you can triangulate the location of any point using trigonometry.

What is Levelling and its types?

What is levelling and It’s types. Levelling is a method of surveying which is determined the elevation between two points on the earth surface. Levelling deal with measurement in a vertical plane. Levelling is much useful for the railway, highway, canal, swear etc.

Who is the father of surveying?

Paul Felix LazarsfeldPaul Felix Lazarsfeld, popularly known as the founder of modern research surveys, made considerable contributions towards statistical survey analysis, panel methods, latent structure analysis and contextual analysis.

What is the aim of Levelling in surveying?

Levelling is a process of determining the height of one level relative to another. It is used in surveying to establish the elevation of a point relative to a datum, or to establish a point at a given elevation relative to a datum.

How many types of Levelling are there?

4 waysHow many types of levelling are there? Explanation: There are 4 ways to perform levelling. They are direct levelling, trigonometric levelling, barometric levelling and stadia levelling. Explanation: In trigonometric levelling, the horizontal distance and vertical angle are measured from the station to the object.

What are the 3 types of survey?

Most research can be divided into three different categories: exploratory, descriptive and causal. Each serves a different end purpose and can only be used in certain ways.

What is the best type of survey?

In-person interviews are by far the most personable approach and can create trust and cooperation from respondents. The best interviewers will be able to read non-verbal cues to better direct the interview. It is also the best way to perform interviews that may involve sensitive topics.

What is the basic principle of surveying?

It is a fundamental rule to always work from the whole to the part. This implies a precise control surveying as the first consideration followed by subsidiary detail surveying.

What are the principles of Levelling?

Principle of Levelling • The principle of levelling is to obtain horizontal line of sight with respect to which vertical distances of the points above or below this line of sight are found.

What is the purpose of stope surveying?

When mines employ contractors a rapid method of surveying stopes is required so that the pay office can finalise payments at the end of a specific period. Such surveys are also necessary for geological planning purposes and to comply with regulations on keeping mine plans up to date.

What are the two types of surveying?

There is a great deal of overlap with the different types of surveying, however in general terms they can be describes as follows.LAND. … HYDROGRAPHIC. … ENGINEERING. … MAPPING. … ENVIRONMENTAL PLANNING. … GPS SATELLITE SURVEYING & SATELLITE IMAGERY. … GEOGRAPHIC INFORMATION SYSTEMS. … MINING.

What are the purpose of surveying?

To determine the required areas and volumes of land and materials needed during construction. To ensure that the construction takes place in the correct realtive and absolute position on the ground. To record the final position of the construction, including any design changes.

What is meant by surveying?

Surveying or land surveying is the technique, profession, art, and science of determining the terrestrial or three-dimensional positions of points and the distances and angles between them. A land surveying professional is called a land surveyor.

What is the purpose of chain surveying?

Chain surveying is the type of surveying in which only linear measurements are made in the field. The main principle of chain surveying or chain triangulation is to provide a framework consist of number of well-conditioned triangles or nearly equilateral triangles. It is used to find the area of the field.

What is the cardinal principle of surveying?

F ? [2009] Ans: A chain line 120 m is represented by 4 cm. 5. What is cardinal principle in surveying ? [2013(W)] Ans: The cardinal principle in surveying are: i) To work from the whole to part ii) To locate a new station by at least two measurements (linear or angular) from fixed reference points. 6.

What is the history of surveying?

The history of surveying dates back to ancient times, with a recorded land register in Egypt in 3000BC, and re-establishment of farm boundaries following floods of the Nile River and construction of the Great Pyramid of Giza recorded about the same time.