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प्रश्न
Which colours are used on toposheets? What is their significance?
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उत्तर
Six colours are used in a survey map to show various features. They are as follows:
Black: All names, river banks, broken grounds, dry streams, surveyed trees, heights and their numbering, railway tracks, telephone and telegraph lines.
Yellow: All cultivated areas.
Green: All wooded/forested areas, scattered trees and scrubs.
Brown: Contour lines, their numbering, stony waste, sand features.
Blue: All water bodies, where they contain water.
Red: Grid lines and their numbering, roads, cart tracks, settlements, huts and other buildings. Note: Sometimes we find white patches here and there to show barren lands.
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संबंधित प्रश्न
Name the state that produces the largest amount of limestone.
What is the difference between the drainage pattern of the streams in 0624 and those in 0824?
What are the following?
The black vertical line between eastings 09 and 10
Name the left bank tributary of the main river.
Give four grid reference of each of the following:
1) Open scrub
2) Bantawada
What are ‘National Grid Reference’?
Convert the following scales into R.F.
(i) On a topographical map two stations A and B are situated at height of 500 metres and 100 metres respectively. If the horizontal distance between them is 2 km, calculate the gradient.
(ii) On a topographical map, two places A and B are given. Calculate the gradient between them.
Study the extract of the Survey of India Map sheet No. 45D/10 and answer the following questions:
- What is the compass direction of Sunset Point from the settlement of Anadra?
- What is the pattern of drainage in grid square 2315?
- Mention any two features seen in the map extract which indicate that the region has seasonal rainfall.
- Calculate the distance, in kilometers, along the metalled road from the causeway in grid square 1715 to the distance stone marked 20 in grid square 1818.
- What advantage does a Representative Fraction have over a verbal scale?
- Give the six figure grid reference of:
- Anjini Devi ka Mandir
- D 1327.
- Name the three different kinds of roads in grid square 2411 and the one in grid square 2515.
- Mention two occupations of the people living in the northern part of the region in the map extract. Give reasons to support your answer.
- What is the difference between the slope in grid square 2115 and the one in 1811? Give a reason for your answer.
- What is the purpose of:
- the fireline in grid square 2316.
- the pipeline in grid square 2209?
- What do the following represent?
- The red square in grid square 2514.
- 4r in grid square 1612,
- Abu is a popular holiday resort. Mention any three features seen in the map extract which attract holidaymakers to Abu.
Study the extract from the topographical sheet No. 63K/12, as shown in the figure below and answer the following questions-
- Convert 1:50,000 into a statement of scale.
- Name the major settlements of the area.
- What is the direction of flow of the river Ganga?
- At which one of the banks of river Ganga, Bhatauli is located ?
- What is the pattern of rural settlements along the right bank of river Ganga?
- Name the villages/settlements where Post Office is located ?
- What does the yellow colour in the area refer to?
- What means of transportation is used to cross the river by the people of Bhatauli village?
R. F. 1: 50,000
Part of the Topographical Sheet No 63K/12
