List two uses of EDM. 

1 Answer

Answer :

1.It is useful for measuring the distances that are difficult to access.

2. It is useful in topographical survey.

3.Measurement of base line in triangulation survey can be carried out speedily and accurately.

4.Measuremnt of distances in difficult work sites such as construction of gravity dams.

5.It is useful in fixing alignment of road, railways, canals etc.

Related questions

Description : State the principle of EDM with sketch.

Last Answer : Principle of EDM:- The fig shows a survey line AB, the length D of which is to be measured using EDM equipment placed at ends A. Let a transmitter be placed at A to propagate electromagnetic waves towards B ... measured at A. This will require EDM timing devices with an accuracy of 1 10-9s.  

Description : Explain the working principal of EDM with a neat sketch. 

Last Answer : Let the distance between P and Q be D' which is to be measured. A wave is transmitted from the transmitter at station P' with certain phase angle. . There ... finding the distance, the phase difference between transmitted wave and reflected wave is measured and converted into distance.

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Last Answer : The uses of digital theodolite are as follows. 1. To measure horizontal angle vey precisely up to one second. 2. To measure vertical angle accurately up to one second. 3. To set ... reduced levels of ridge and valley lines accurately. 5. To determine horizontal distance more precisely

Description : State any four uses of transit theodolite.

Last Answer : Transit theodolite is useful for the following. 1. To measure the horizontal and vertical angles between survey stations. 2. To measure deflection angles between survey lines. 3. To measure horizontal ... tubular compass to it. 6. To prolong or extend the survey line up to required destination.

Description : State the uses of Global positioning system (GPS) 

Last Answer : Uses of Global positioning system 1. To prepare contour maps. 2. To prepare longitudinal section of roads. 3. To prepare alignment of roads & bridges. 4. Used for navigation purpose.  5. For ... . 8. Used in Geographical information system. 9. Used in Military and Space 10. For Agriculture.

Description : State any four uses of contour.

Last Answer : By studying a contour map : 1) The nature of the ground surface or topography of a country whether hilly, undulating or flat can be understood. 2) Possible routes of communication between ... drawn any direction from the contour map. 8) Quantities of earthwork can be determined approximately. 

Description : Enlist the uses of total station in surveying.

Last Answer : The uses of total station are : 1) To measure horizontal, vertical and slope distances. 2) To measure horizontal and vertical angles. 3) To measure the level difference between points. 4) To carry out ... 6) To prepare layout of building. 7) For speedy completion of any type of project work. 

Description : What is GPS. State any four uses of GPS

Last Answer : GPS is satellite navigation system used to determine the ground position of an object. Uses of GPS: 1.To prepare contour map 2 It is widely used in navigation. 3. To locate different points of ... fix alignment , positions of piers etc. 6 It gives accrate timing to banks, mobile oprators etc.

Description : State the uses of contour map. 

Last Answer : Following are the uses of contour maps. 1.The nature of the ground surface or topography of a country weather hilly, undulating ,or flat can be understood. 2. For determining the ... volume of cutting and embankment in given gradient. 6.For determining intervisibility of given points. 

Description : List any four modern survey instruments.

Last Answer : Following are the modern survey instruments. 1. Digital Level 2. Electronic Distance Meter (EDM) 3. Micro-optic Theodolite 4. Total Station 5. Global Positioning System (GPS) Device 6. Aerial Camera 7. Remote Sensors

Description : List any four essential characters of Tacheometer. 

Last Answer : 1. The value of constant f/i = 100 Where, f = focal length i = length of image. 2. The telescope should be powerful, the magnification should be 20 to 30 times the diameter  3. The ... aperture of the objective should be 35 to 45mm in diameter in order to have a sufficiently bright image.

Description : Compare radiation and intersection methods of plane table surveying on any two parameters. 

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Description : Name two software for GPS. 

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Description : State two advantages of plane table surveying

Last Answer : is most rapid method of surveying. 2. it is suitable for magnetic areas. 3.The map can be prepared easily ,and does not require greater skill. 4.Irregular objects can be represented ... is less costly. 7 The check lines detects the errors of measurement and plotting on field itself. 

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Description : State any two situations under which tacheometry is preferred. 

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Description : What is a contour map? Write any two objects of preparing contour map.

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Description : State the two methods of setting out curves.

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Description : State any two advantages of total station over dumpy level and theodolite.

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Description : State any two application of each of GIS in land information and land environmental field.

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Description : State any two advantages and limitations of remote sensing. 

Last Answer : Following are the advantages of remote sensing Provides data for large areas. Provide data for very remote and inaccessible area. Easy and rapid collection of data. Rapid production ... Needs cross verification with field survey data. Objects can be misclassified or confused. Expensive.

Description : State any two special features of electronic theodolite.

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Description : What is the difference between a theodolite and a tacheometer. Give any two characteristics of tacheometer.

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Description : What is meant by permanent adjustment of a theodolite.Enlist any two such adjustment.

Last Answer : A theodolite consist of several fundamental lines .In order reading to be accurate, certain desired relationship must exist between the fundamental lines of the instruments. But due to improper handling or ... axix 4 Adjustment of level tube on the telescope 5 Adjustment of vertical index frame.

Description : Demonstrate the utility of Remote Sensing and GIS applications in Civil Engineering with appropriate examples. 

Last Answer : Applications of Remote Sensing in Civil Engineering 1) Silting of storage reservoirs harbors etc. - Remote sensing technique that makes use of satellite imagery gives idea about the silting of ... Impact studies 6) Natural Hazard mapping or assessment 7) Water Resources availability.

Description : Apply knowledge of total station to prepare a contour map by describing its procedure.

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Description : Describe the procedure to determine co-ordinates of a station using GPS. 

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Description : Explain the principle of techeometry with the help of a neat sketch.

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Description : Explain the temporary adjustment of theodolite. 

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Description : Describe any one method of orientation of plane table surveying

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Description : State the function of Anallatic lens.. 

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Description : Define Latitude and Departure. 

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Description : Define Swinging & Transiting

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Description : State any four characteristics of contours with sketches.

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Description : Explain direct method of contouring.

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Description : Define transiting and swinging of theodolite.

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Description : What do you mean by zero circle in area measurement?

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Description : Give the main features of total station

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Description : Enlist the advantages and disadvantages of total station

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Description : What is meant by zero circle? State the advantages of digital planimeter over polar planimeter.

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Description : Give the classification of curve and Define 1.Transition curve 2. Reverse curve

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Description : State the component parts of micro optic theodolite . How it is superior to a transit theodolite. Also write the situation where it is suitable.

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Description : What are the different methods of contouring? Describe any one method along with sketch . Also write the situation where it is suitable

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Description : Define tacheometry. State the principle of tacheometry with sketch.

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Description : Define grade contour. Give the procedure to locate grade contour on contour map with suitable sketch.

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Description : Write the use of Gale’s table.

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Description : Give the simplest method of finding the area of zero of a zero circle from manufacturers table.

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Description : In a contour map, if contours are crossing each other, what will be nature of topography? Draw the sketch to support your answer.

Last Answer : If contours are crossing or intersecting each other, then there is overhanging cliff as shown in figure 1 below.