EXERCISES
Short Answer Questions
1. How is direction shown on a map?
2. What do you mean by R.F.?
3. What is the advantage of R.F.?
4. Explain Magnetic declination with the help of a diagram.
5. Why are True North' and 'Grid North' different?
6. Convert the following numerical scale (R.F.) into statement scales:
(a) 1:1000;
(b) 1:50,000;
(c) 1:5,00,000.
7. Convert the following into numerical scales (R.F):
(a) 10 centimetres to kilometre; (b) 1 centimetre to 20 kilometres;
(c) 2 cm to 5 km;
(d) 6 inch to 1 mile;
(e) 1 inch to 2%2 miles;
(1) 7 cm to 6.3 km;
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Answers
Answer:
I don't know
Explanation:
Sorry i dont know
Answer:
1. The direction is mostly shown on the map with the help of different arrows where the right arrow indicates east and the left arrow indicates west. The arrow indicating up will be considered as north and the arrow which indicates down, it depicts south direction
2. Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around 20 kHz to around 300 GHz. ...
3. In representative fraction (RF), the scale on the map is expressed in the numerical fraction. Its advantage is that it has universal application. Even people who live in foreign countries can find the distance on the map even if they are not familiar with the units of measurements of that country.
5. The difference between grid north andtrue north is very small and can be ignored for most navigation purposes. The difference exists because the correspondence between a flat map and the round Earth is necessarily imperfect. At the South Pole, grid northconventionally points northwards along the Prime Meridian
6.