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प्रश्न
What is a “Topographical Map”?
What do you mean by a topographical map?
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उत्तर
Topographical map gives detailed information about physical features and man-made features of a small area. Physical features are depicted by contours. Cultural or man-made features are represented by symbols called conventional signs.
संबंधित प्रश्न
Name the following: An offshore oil field in the Gulf of Cambay.
How does the feature, indicated by the black curves in 0721, show that rainfall in this region is seasonal?
What are the following?
The black vertical line between eastings 09 and 10
Give the six figure grid reference of Triangulated height 217
What is a River system.
Why are directions on a map important?
What is Concave Slope and Convex Slope? Explain?
Study the extract of the Survey of India Map Sheet No. 45 D/7 (A – B) and answer the following questions:
(a) (i) What does the abbreviation R. F., stand for?
(ii) What does 20r (grid sq. 8295) mean.
(iii) What does V near Shergadh village in the south-east corner mean.
(b)
(i) What type of relief do you observe in north-west of the map (West Panswala)?
(ii) Why is the land shown in white shade not put to cultivation?
(c)
(i) What seems to be the importance of village Jegol in grid sq. 8590 in the south?
(ii) Find out the length of the joint stream of rivers Sipu, Varka and Hanva.
(d) What type of relief feature is found close to Varkanala and Hanvanala near Gangudra in the centre of the area?
(e) Give four figure grid reference of a well marked meander of Varkanala and Sipu river.
(f)
(i) What does the black line marked 24°30′ in the north denote.
(ii) What is the meaning of 72°20′ north-south black line in the western part of the map?
(iii) What do the figures 280, 300, 500 etc., written in brown on east margin of the map indicate.
(g)
(i) Point out two man-made features on the map.
(ii) What is the direction of the river Sipu 83 C 86 grid lines?
(iii) What is the grid reference (four figures) of the lime kiln located near Rampura village in the north-west?
If you are interpreting the cultural features from a topographical sheet, what information would you like to seek and how would you derive this information? Discuss with the help of suitable examples.
Identify the survey sheet of your city. Make a list of the important features both man-made and natural.
