BA 2nd semester geography prectical viva voce || general cartography practical viva ||

Summary

This educational video is tailored for geography students preparing for their upcoming practical exams. It covers key topics such as the origin of the term 'map' from Latin, the difference between map and plan, and the types of maps based on scale. It also delves into the concept of representative fraction, the average radius of the Earth in centimeters, and the significance of the Prime Meridian. The video concludes with a discussion on the most useful projection for navigation, highlighting the importance of these concepts for students.

Takeaways

• 📚 The video is aimed at students preparing for geography practical exams in the second semester.
• 🗺️ The script includes important questions in general cartography that are frequently asked.
• 📜 The names of the two question papers in geography are 'Manav Bhugol' and 'General Cartography'.
• 🌐 The word 'map' originates from the Latin word 'mappa', which means cloth or napkin.
• 🌍 A map is a symbolic representation of the Earth or any celestial body, or part of it, on a flat surface according to scale.
• 🔍 The difference between a map and a line drawing is that a map is made according to scale, while a line drawing is made without using scale, based only on appearance.
• 📏 There are various types of maps made according to scale, such as 'bhusampada' and 'divali' or 'atlas' maps.
• 📐 The method of measuring a map is called 'map measurement', which is the distance between two points on the Earth's surface.
• 🔢 The full form of 'Arab' is 'Representative Fraction', which translates to 'Representative Different' or 'Display Different' in Hindi.
• 📏 In one kilometer, there are 100,000 centimeters, and other related measurements are also discussed, such as the number of hectometers in a kilometer, dekameter in a meter, and furlongs in a mile.
• 🌳 The script explains why oblique projection is called so, as it involves pulling and displaying small distances in an oblique manner.
• 🌍 The average radius of the Earth is approximately 63.5 million centimeters, or 25 million inches, for simplicity.
• 🧭 The main meridian, or prime meridian, is the 0-degree longitude line, also known as the Greenwich Meridian.
• 🛰️ For navigation, the most useful projection is the mercator projection, which is used for maps that cover large areas.

Q & A

What are the two types of question papers in the second semester of the Bachelor's First Year Geography practical exam?

The two types of question papers are the one named 'Manav Bhugol' in Hindi, which is theoretical, and the other, which is entirely practical, is known as 'General Cartography'.

What is the origin of the word 'map' and what is its literal meaning in Latin?

The word 'map' originates from the Latin word 'mappa', which literally means 'cloth' or 'napkin' in Latin, highlighting its importance as a representation of the world.

What is the definition of a 'map' in the context of geography?

A map is a symbolic representation of the earth or any celestial body, or part of it, on a flat surface according to certain scales and measurements.

What is the difference between a map and a line drawing?

A map is always made according to measurements, while a line drawing is created without the use of measurements and is based solely on visual representation.

How many types of maps are there according to the method of mapping?

There are various types of maps depending on the method of mapping, such as 'bhusampada' and 'divali' or 'atlas' maps.

What is the principle of measuring a map called?

The principle of measuring a map is called 'chhati doori', which is the distance between two points on the surface of the map.

What is the full form of 'Arab' in the context of geography?

The full form of 'Arab' in geography is 'Representative Fraction', which in Hindi is known as 'Nirupak Bhinn' or 'Pradarshan Bhinn'.

How many centimeters are there in a kilometer?

There are 100,000 centimeters in a kilometer.

What is the average radius of the Earth in centimeters?

The average radius of the Earth is approximately 63.5 million centimeters, which is simplified for calculations.

What is the main meridian called, and what does 'meridian' mean in this context?

The main meridian is called the Prime Meridian or the Greenwich Meridian, which is the 0-degree longitude line.

Which projection is considered most useful for navigation?

For navigation, the most useful map projection is the Mercator projection, which is oriented towards the west.