What are advantages and disadvantages of plane tabling?

What are advantages and disadvantages of plane tabling?

Advantages of Plane Table Surveying. The observations and plotting are done simultaneously, hence there is no risk of omitting necessary details. The errors and mistakes in plotting can be checked by drawing check lines. Irregular objects can be plotted accurately as the lay of land is in view.

Which of the following is not an advantage in plane tabling?

Which of the below is not an advantage of PT survey? Explanation: It is used only to locate a certain local object. It doesn’t give accurate results and can’t be used for high precision works.

Which of the following can be a disadvantage of plane table survey?

Which of the following can be a disadvantage to plane table surveying? Explanation: Plane table involves in the usage of more amount of instruments, which makes it uncomfortable while working in wet climatic conditions like rainy season.

What are the different sources of error in plane tabling?

The errors in plane table surveying are of three types : Instrumental errors. Errors in plotting. Errors due to manipulation and sighting.

Which of the following can cause more damage while using a plane table for surveying?

8. Which of the following can cause more damage while using a plane table for surveying? Explanation: Except climatic change, remaining errors can be minimised by an alternative. Climatic change may increase or decrease the values from the original.

What is meant by plane tabling When do you recommend it?

Plane table surveying is a graphical method of survey in which the field observations and plotting are done simultaneously. It is simple and cheaper than Theodolite survey but it is mostly suitable for small scale survey.

Which one of the following is not a method of plane tabling?

Which among the following is not a method of plane table surveying? Explanation: The methods which are adopted in case of plane table surveying involve radiation, Intersection, resection and traversing, which are used based on the type of output required. 2. The method of radiation is used when distances are small.

Which of the following can cause more damage while using a plane table surveying?

Which instrument is not used in plane table survey?

Compass is used to indicate the magnetic north. Theodolite is not used in this case as the entire process is done manually without any instrumental usage. 2. In plane table surveying, plotting and recording of values are done simultaneously.

What are the limitations and errors in plane table survey?

Plane table survey cannot be used in rainy season. Plane Table Survey instruments are heavy, cumbersome to carry. The table has to be centered and oriented at every station which is really tiresome. It never produces accurate results.

Which of the following is not useful in plane table survey?

Which of the following does not belong to the instruments of plane table? Explanation: Spirit level is used for levelling the table at the station point. Plumb bob is used to transfer the point in sheet to the ground. Compass is used to indicate the magnetic north.

Which of the following can be affected by atmospheric path disturbance?

1. Which of the following can be affected by atmospheric path disturbances? Explanation: Modern GPS surveying can be affected by atmospheric conditions.

What are the disadvantages of plane tabling surveying?

(1) Plane tabling is not suitable for work in wet climates, in places where high winds predominate, and in wooded country. (2) If the area to be surveyed is large, frequent changes in the size of drawing sheets are required. (3) Due to changes in temperature, the table is liable to warp.

What are the advantages of using a plane table?

The advantages of use of plane table in surveying are- It is the most used and suitable method for surveying and preparing small scale maps. All possible human and machine errors can be eliminated as the surveying and plotting are done simultaneously in the field.

Is it possible to survey with a plane table?

The process of shifting and re-orienting the plane table from one place to another is very lengthy. This type of surveying is not feasible in raining and windy areas as the plotting work are done in the field itself. The accuracy achieved in other types of surveying is higher than the accuracy achieved by plane table surveying.

What kind of paper is used for plane tabling?

For other than rough work, the paper used for plane tabling should be of the best quality, paper is very sensitive and liable to expand or contract due to changes in the humidity of the atmosphere. To lessen this effect, it should be well seasoned for about a week by exposing it alternately to a damp and dry atmosphere.