Question

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?

Answer 1

(a)
(i) It stands for Representative Fraction.
(ii) Relative height of the sand hill from its ground level to its top being 20 metres.
(iii) A deserted fort.

(b)
(i) There is flat sand covering the ground and also sand dunes formed as a result of wind action an obstacle on free surface.
(ii) It is because this land is either rocky or is badly eroded along the edges.

(c)
(i) It is important as a crossing point because as many as 5 (five) cart tracks meet here from different directions.
(ii) It is about 1.5 km. Thread is used to measure the length according to the scale.

(d) It is the broken ground appearing as gullies. River erosion falling through softer sand deposits in rainy season is the cause.

(e) 8593 and 8697.

(f)
(i) The black east-west line in the north denotes the latitude in degrees and minutes.
(ii) The north-south black line points out the degrees and minutes of the longitude.
(iii) These are the endings of contour lines in metres pointing the higher ground farthereast

(g)
(i) Village huts and wells.
(ii) NNE to SSW.
(iii) 8397.