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

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.

Answer : Procedure of preparing contour map using total station1) Preliminary set up - Fix the total station over a station and level it. Press the power button to switch on the instrument. ... computer in the appropriate format. 8) Using appropriate application software, contour map will be prepared.

Description : Describe stepwise procedure to prepare the layout of a small building using total station.

Answer : Layout of small building by using total station: 1. On the plan supplied by an architect, number the column serially from left to right and top to bottom starting from top left ... of setting out by comparing the diagonal distance between the extreme column centres to their calculated values.

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

Answer : Radiation method Intersection method 1. It requires the plane table to occupy a single station.  1. This method requires setting the table up at minimum of two stations.  ... for locating inaccessible points by the intersection of the rays drawn from two instruments stations. 

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

Answer : The following are some general GPS field survey procedures that should be performed at each station, observation, and/or session on a GPS survey. A. Receiver setup : GPS receiver shall be set up ... is to identify any problem that may exist which can be corrected before returning from the field.  

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

Answer : Principle of tacheometry is based on principle of similar triangle in which corresponding sides & altitudes are proportional The ratio of distance of base from apex and length of base is always constant. ... S3=f/i=Constant Where f=focal length of objective and i =stadia intercept  

Description : Explain the temporary adjustment of theodolite. 

Answer : Temporary Adjustments: The temporary adjustments have to be carried out at every setup of the instrument before taking observations with the theodolite A)Setting up: 1) Place the instrument ... . The parallax can be removed by the sharp focusing until the image appears sharp and clear. 

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

Answer : Orientation by back sighting method: This method is accurate and is always preferred. Procedure: 1.Suppose A and B are two stations.The plane table is set up over A. The table is leveled by spirit level ... are perfect and needle is exactly at 0-0 , the orientation is said to be perfect.

Description : Name two software for GPS. 

Answer : Softwares for GPS 1).GPSWOX 2) iGO 3) HERE 4)Navigon 5)Navman 6)EasyGPS 7) Caliper 

Description : List two uses of EDM. 

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

Description : State the function of Anallatic lens.. 

Answer : The function of anallatic lens is to make additive constant zero i.e.(f+d)=0 It simplifies the calculation. 

Description : Define Latitude and Departure. 

Answer : Latitude : The projection of survey line parallel to meridian is called latitude. OR Projection of survey line parallel to N-S direction is called latitude. Departure: The projection of survey ... is called departure. OR Projection of survey line parallel to E-W direction is called departure.

Description : Define Swinging & Transiting

Answer : Swinging: It is the process of turning the telescope in horizontal plane about its vertical axis. Transiting: It is the process of turning the telescope through 180° in a vertical plane about its horizontal axis

Description : State two advantages of plane table surveying

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. 

Description : State any four characteristics of contours with sketches.

Answer : Characteristics of contours - The characteristics of contours are described in following statements with the help of necessary sketches. 1. All the points on contour line represent same reduced level or equal ... 8. The summit of four ridge lines represents saddle as shown in sketch 8.

Description : Explain direct method of contouring.

Answer : Direct method of contouring - In this method of contouring, the contours of required reduced level are plotted on ground itself. The procedure of direct method of contouring is as follows. ... identical coloured pegs, we get the required contours on ground by this direct method of contouring. 

Description : Give classification of curve and explain any one in detail.

Answer : Types of curve : The curve is classified broadly in two categories 1. Horizontal curve - When the points of curve are joined in horizontal plane then it is known as horizontal curve. 2. Vertical ... roadway or railway tracks. Vertical curves are of four types. a) Summit curve b) Valley curve

Description : Define transiting and swinging of theodolite.

Answer : Transiting of theodolite - The vertical movement of telescope about its horizontal axis through 360 degree is known as Transiting of telescope of theodolite. Swinging of theodolite - The lateral or ... of theodolite about its vertical axis through 360 degree is known as Swinging of theodolite.

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

Answer : Zero Circle - It is the circle formed due to sliding of wheel of mechanical planimeter without changing the reading of circular measuring disc. It is unmeasured circular area on drawing sheet due to non-rotation of counter disc.