Question

Rail Transport
The Indian Railways network is one of the longest in the world. It facilitates the movement of both freight and passengers and contributes to the growth of the economy. Mahatma Gandhi said, the Indian railways "...brought people of diverse cultures together to contribute to India's freedom struggle". The Indian Railway was introduced in 1853, when a line was constructed from Bombay to Thane, covering a distance of 34 km. The length of the Indian Railways network was 67,956 km (Railway yearbook 2019-20). Its very large size puts a lot of pressure on a centralised railway management system. Thus, in India, the railway system has been divided into 17 zones. Indian Railways has launched an extensive programme to convert the metre and narrow gauges to broad gauge. Moreover, steam engines have been replaced by diesel and electric engines. This step has increased the speed, as well as the haulage capacity. The replacement of steam engines run by coal has also improved the environment of the stations. Metro rail has revolutionlised the urban transport system in India. Replacement of diesel buses by CNG-run vehicles along with the introduction of the metro is a welcome step towards controlling the air pollution in urban centres. Areas around towns, raw material producing areas and plantations and other commercial crops, hill stations and cantonment towns were well-connected by railways from the British colonial era. These were mostly developed for the exploitation of resources. After the Independence of the country, railway routes have been extended to other areas too. The most significant development has been the development of the Konkan Railway along the western coast, providing a direct link between Mumbai and Mangaluru. The railway continues to remain the main means of transport for the masses. The railway network is relatively less dense in the hill states, north eastern states, central parts of India and Rajasthan.

In Indian Railways, which of the following gauges has the longest total length of tracks?

• A. Broad gauge
• B. Standard gauge
• C. Metre gauge
• D. Narrow gauge

Hint:

Remember the gauge conversion drive in the passage. Everything is being changed to the same gauge.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Gauge means the distance between the two rails of a track. Indian Railways has four types: broad, standard, metre and narrow.

Step 2: Key Approach:
Use the conversion drive mentioned in the passage. Lines are being changed from metre and narrow gauge to broad gauge, so broad gauge must be the biggest in length.

Step 3: Work through the trend:
Every conversion removes length from metre or narrow gauge and adds the same length to broad gauge. Over many years this has made broad gauge the dominant type.

Step 4: Rule out the smaller gauges:
Metre gauge and narrow gauge are shrinking because of the conversion programme. So options (3) and (4) cannot have the longest length.

Step 5: Rule out standard gauge:
Standard gauge is not a main gauge of Indian Railways. It appears only in limited cases, so option (2) is also not the longest.

Step 6: Conclude:
Only broad gauge is both widespread and growing. Therefore option (1) is the answer.

Final Answer:
Broad gauge carries most routes in India, so option (1) is right. \[ \boxed{1} \]