# Define 1) Contour 2) Contour Interval

Define 1) Contour 2) Contour Interval

Contour :- It is an imaginary line on the ground joining points of equal elevation or RLs.

Contour Interval :- The vertical distance between any two consecutive contours is known as a contour interval

## Related questions

Description : Differentiate between contour interval and horizontal equivalent.

Last Answer : Contour Interval - The vertical distance between two successive contours or contour lines, is known as Contour Interval. Horizontal Equivalent - The horizontal distance between two successive contours or contour lines, is known as Horizontal Equivalent.

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

Last Answer : Grade Contour - It is the contour established on a specific grade or gradient along the hill side. OR   The line joining the points of equal grade or gradient is termed as grade contour.  ... all the marked points will give us the required grade contour of 1 in 30 accurately.

Description : Define interpolation of contour and state its methods.

Last Answer : The process of spacing the contours proportionately between the ground points is known as “Interpolation of Contours”. The contours may be interpolated by: 1. Estimation 2. Arithmetical calculations. 3. Graphical method.

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

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

Last Answer : Contour map : It the map showing nature of topography of any particular field with the help of contour lines indicating reduced levels of ground. Objects of preparing contour map : Contour map ... . 4. To excavate the canal and contour cut trenches along hillside under watershed management works.

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.

Description : How will you locate grade contour on contour map.

Last Answer : Procedure for establishing grade contour on ground : The grade contour along hill side can be established by following procedure. 1. Suppose a grade contour of 1 in 30 is to be established on ground. ... all the marked points will give us the required grade contour of 1 in 30 accurately.

Description : State the methods of contour interpolation and explain in brief any one.

Last Answer : Methods of interpolation:- i) By Arithmetic calculations ii) By Estimation iii) By Graphical method i) By Arithmetic Calculation: This is very tedious but accurate method and is used for small areas ... in fig.) may now be pricked through the position of the contour points on line PQ.

Description : What is meant by grade contour? How it will be located in field?

Last Answer : It is the contour established on a specific grade or gradient along the hill side. OR The line joining the points of equal grade or gradient is termed as grade contour. Procedure for ... all the marked points will give us the required grade contour of 1 in 30 accurately.

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 : Describe the procedure to locate grade contour in field

Last Answer : Line joining the point along the same gradient is called contour gradient or grade contour. All the points on a contour have the same elevation. But all the points on a contour gradient do not ... on contour of RL 64. Similarly others points are established to obtain the grade contour on field.

Description : State any four applications of contour map

Last Answer : Following are the applications of Contour map. 1. With the help of contour lines on contour map one can know the nature of ground. 2. For determination of most economical site for dams ... of cutting and embankment in given gradient. 6. For determining the indivisibility of two given points

Description : Draw neat sketch of contour for the following i)Hill ii) Valley iii)Gentle Slope iv) Ridge Line

Last Answer : i)Hill ii) Valley iii)Gentle Slope iv) Ridge Line

Description : Explain the procedure of establishing grade contour on ground.

Last Answer : The grade contour along hill side can be established by following procedure. Suppose a grade contour of 1 in 30 is to be established on ground at an interval of 40 m. The points of grade contour ... joining all the marked points will give us the required grade contour of 1 in 30 accurately

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 : Define Latitude and Departure.

Last 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

Last 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 : Define transiting and swinging of theodolite.

Last 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 : Define following terms and give any two components of each : 1. GIS 2. GPS

Last Answer : GIS:- A geographic information system is a computer based tool that allows you to create, manipulate, analyze ,store & display information based on its location. Components:- 1) hardware 2) ... position &location speed and direction. Components:- 1) Antenna 2) Radio frequency

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

Last Answer : Classification of curve is as follows1) Horizontal curve  a) Simple curve  b) Compound curve  c) Reverse curve  d) Transition curve  e) Lemniscate curve 2) Vertical curve  a) Summit curve ... their centers lie on opposites sides of the curve . They have one common tangent.

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

Last Answer : Tacheometry : It is the branch of angular surveying in which horizontal and vertical distances are determined from instrumental observations only, is known as tacheometry. Principle of tacheometry : ... to corresponding staff intercept remains constant as shown below in figure 3

Description : Define the term departure and latitude

Last Answer : Departure :- It is the distance parallel to the East-West line OR the projection of survey line perpendicular to the meridian is called departure. Latitude :- It is the distance parallel to the North-South line OR the projection of survey line parallel to the meridian is called latitude.

Description : Define 1) Telescope inverted 2) Telescope normal

Last Answer : Telescope Inverted :- It means bubble down & the face right position is called telescope inverted. Telescope Normal :- It means bubble up & the face left position is called as telescope normal.

Description :  Define transiting.

Last Answer : Transiting is the method of turning the telescope about its horizontal axis in vertical plane through 180ᴼ.

Description : Define zero circle.

Last Answer : For a mechanical or polar planimeter, when the tracing point moves along a circle without rotation of the wheel i.e. when the wheel just slides without any change in reading, the circle is known as the zero circle.

Description : Define the term interpolation of contours.

Last Answer : Interpolation of contours is the process of locating the required contours proportionately between the plotted reduced levels on sheet.

Description : Define tacheometer. State essential characteristics of tacheometer.

Last Answer : Tacheometer A tacheometer is essentially a transit theodolite having a stadia diaphragm. The diaphragm is equipped with two horizontal hairs called stadia hairs in addition to the regular cross hairs. ... The vision through the telescope should give a clear and bright image for a long distance.

Description : Define compound curve and reverse curve

Last Answer : Compound Curve: A compound curve consists of two arc of different radius curving in the same direction. The centers of the two arc situated on the same side of the curve. Reverse Curve: A ... opposite direction with a common tangent. The two centers are on the opposite sides of a common tangent.

Description : Define the terms , swinging and transiting.

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

Description : Define telescope inverted and telescope normal for transit theodolite.

Last Answer : Telescope Inverted: The position of telescope with the face right is known as “Telescope Inverted”. Telescope Normal: The position of telescope with the face left is known as “Telescope Normal”.

Description : Define G.I.S. Enlist the key components of G.I.S.

Last Answer : Definition: A Geographic Information System (GIS) is a computer based tool that allows you to create, manipulate, analyze, store and display information based on its location. Components of GIS: ... plan and business rules, which are the models and operating practices unique to each organization.

Description : Define zero circle. How it is found out?

Last Answer : Zero circle or circle of correction is defined as circle round the circumference of which if tracing point is moved, wheel will simply slide(without rotation) on the paper without any change in reading. There ... of zero circle = M C Where M= multiplying constant. C= additive constant.

Description : Define degree of curve.

Last Answer : The angle subtended at the centre of the circle by a chord of standard length of 30m is known as degree of curve.

Description : Define swing of telescope

Last Answer : It the process of turning the telescope in horizontal plane about vertical axis.

Description : Define the terms- latitude and departure.

Last Answer :  Latitude – The projective distance of survey line parallel to meridian (i.e. N-S direction) is known as Latitude of a line. Departure - The projective distance of survey line perpendicular to meridian (i.e. N-S direction) is known as Departure of a line.

Description : Define horizontal equivalent .

Last Answer : The horizontal distance between any two successive contours is called horizontal equivalent.

Description : What factors might influence a cartographers choice of contour interval?

Description : What would a disadvantage of using a smaller contour interval?

Description : The suitable contour interval for a map with scale 1 : 10000 is (A) 2 m (B) 5 m (C) 10 m (D) 20 m

Last Answer : (A) 2 m

Description : An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as (A) Contour line (B) Horizontal equivalent (C) Contour interval (D) Contour gradient

Description : Accuracy of elevation of various points obtained from contour map is limited to (A) ½ of the contour interval (B) ¼ th of the contour interval (C) rd of the contour interval (D) th of the contour interval

Last Answer : (A) ½ of the contour interval

Description : Select the correct statement. . A) Contour interval on any map is kept constant. (B) Direct method of contouring is cheaper than indirect method. (C) Intervisibility of points on a contour map cannot be ascertained. (D) Slope of a hill cannot be determined with the help of contours.

Last Answer : (A) Contour interval on any map is kept constant.

Description : The constant vertical distance between two adjacent contours, is called (A) Horizontal interval (B) Horizontal equivalent (C) Vertical equivalent (D) Contour interval

Last Answer : (D) Contour interval

Description : In the cross-section method of indirect contouring, the spacing of cross-sections depends upon (i) Contour interval (ii) Scale of plan (iii) Characteristics of ground The correct answer is (A) Only (i) (B) (i) and (ii) (C) (ii) and (iii) (D) (i), (ii) and (iii)

Last Answer : (D) (i), (ii) and (iii)

Description : Contour interval is (A) The vertical distance between two consecutive contours (B) The horizontal distance between two consecutive contours (C) The vertical distance between two points on same contour (D) The horizontal distance between two points on same contour

Last Answer : (A) The vertical distance between two consecutive contours

Description : Contour interval is (A) Inversely proportional to the scale of the map (B) Directly proportional to the flatness of ground (C) Larger for accurate works (D) Larger if the time available is more

Last Answer : (A) Inversely proportional to the scale of the map

Description : Pick up the correct statement from the following: (A) Detailed survey is carried out for a strip of land about 30 m at sharp curves (B) Levels are taken along the trace cut at an interval of 20 m (C) Contour interval is generally adopted at 2 metres vertical interval (D) All the above