1.Explain the Three Types of Rail Gauges.
Rail gauge can be of four types-
- Broad Gauge Rail: The distance between two tracks is 1676 millimetres in broad railway gauges.
- Metre Gauge Rail: The distance between two tracks is 1000 millimetres in metre railway gauges.
- Narrow Gauge Rail: The distance between two tracks is 762 millimetres in narrow railway gauges.
- Standard Gauge Rail: The distance between two tracks is 1435 millimetres in standard railway gauges.
2.Why Is Air Travel More Expensive Than Land Travel?
Air travel is expensive due to the following reasons:
- Flights are more expensive due to the fuel price.
- Air crafts require 1.5 gallons of jet fuel to run highly efficient engines.
- Aeroplanes take less time than any other type of mode of travel.
- The maintenance of an aircraft is costlier than land vehicles.
3.What Is a Metro Railway?
- A metro railway system is found in urban areas of a country.
- It is a mass rapid transit system.
- Metro rails can move on land, above land on elevated tracks, or underground railway tracks.
- The trains move at high speed and are custom-made, so there is no staircase between the trains and the platform.
- The Shanghai Metro is the world's most extended metro railway system.
4.What Is the Difference Between Airbus and Boeing?
The difference between a Boeing and an airbus is mentioned below-
Boeing |
Airbus |
1. The number of Boeing flights always starts with 7. |
1. Airbuses always use alphanumeric codes. |
2. Boeing is an American aircraft manufacturer. |
2. Boeing is a French aircraft manufacturer. |
3.Boeings have a pointed noses. |
3. Airbuses have blunt noses. |
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5.What Is a Lifeboat?
- Lifeboats are inflatable boats that are used for emergency evacuation during mishaps like ship accidents.
- These boats are motorised and provided with an auto-inflation system. They can move faster than other types of boats.
- Lifeboats remain fixed on the ships' sides so they can be easily deployed during accidents.