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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.
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"`
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संबंधित प्रश्न
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(e)
(i) Which is a universally accepted scale?
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(ii) 
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Study the extract of the Survey of India Map sheet No. 45D/10 and answer the following questions:
(a)
Give the six figure grid reference of:
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Give the four figure grid reference of each of the following:
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(ii) Sheet rock.
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(d)
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(i) Black curved lines in 7788.
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(e)
(i) What is the general pattern of settlements in the region shown on the map?
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(g)
(i) What is the main form of transport in this region?
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(h)
(i) What is the compass direction of Dantiwada, 8582, fromBhadli Kotha, 7886?
(ii) What is the general direction of flow of the Arado. N?
(i)
(i) Name the type of drainage pattern found in grid square 8584.
(ii) What do you mean by 25r in grid square 8286?
(j)
(i) What is meant by ‘R.F.’?
(ii) What is the R.F. shown on this map extract?
Identify the survey sheet of your city. Make a list of the important features both man-made and natural.
