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प्रश्न
(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.
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उत्तर
(i) Horizontal distance = 2 km = 2000 m
Vertical difference in height = 500 – 100 = 400 metres
Gradient =`"Vertical interval"/"Horizontal equivalent"`
`= 400/2000`
`= 1/5 = 1 : 5`
(ii) Horizontal distance: Measure the distance in cms. between the two places with your ruler. Then from the R.F. given on the toposheet calculate the actual distance between the two places in km and then convert into metres.
Vertical interval in height: Find the difference between the values of the two contours in which the places lie or if no contour lines are shown, find the difference in the spot heights of the two places.
Gradient = `"Vertical Interval"/"Horizontal Equivalent" "Express your answer as a ratio"`
संबंधित प्रश्न
Name the following:
An oil refinery in Bihar.
Mention one man-made feature in the map, which also provides evidence that the rainfall is seasonal.
What are the following?
The black vertical line between eastings 09 and 10
Name the types of drainage pattern found in grid square 9374.
Name two relief features that can be seen in grid square 9782 and 9574.
What are ‘Eastings’ and ‘Northings’?
Study the extract of the Survey of India Map sheet No. 45D/10 and answer the following questions:
(a) Name and give the four figure grid reference of a settlement where the people of the region meet at least once a year.
(b) What does the conventional symbol at grid reference 145132 mean?
(c)
If a man were to walk from Gulabganj (1820) to Harmatiya (1916):
(i) In which direction would he be walking?
(ii) Which are the two different kinds of roads that he would be using?
(d)
What do the following numbers in grid square 1718 and 1818 mean?
(i) 280 (ii) 281
(e) What are the two differences between the settlement Bamba in 1914 and those in 1813?
(f) Name four facilities that Anadra has which makes it an important settlement
(g) What is the quickest means of communication for the people of Dabani (1313)?
(h) What do the following mean:
(i) Brackish in 1915 (ii) Causeway in 1715 (iii) 6r in 1218?
(i) Mention two factors which support the following:
(i) The Sipu river is in its middle course
(ii) The rainfall in the region shown in the map extract is seasonal.
(j) What is the distance in kilometres between the distance stone 20 in 1818 and the causeway in 1715 along the metalled road?
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.
Write short note on ‘Marginal Information’ in Topographical sheets.
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
