Lifelines of National Economy Test - 18

Netaji Subhas Chandra Bose International Airport is an international airport located in Kolkata, West Bengal, India. It is located approximately 17 km from the city centre. The airport was earlier known as Dum Dum Airport before being renamed after Netaji Subhas Chandra Bose. It is the fifth busiest airport in India in respect of aircraft movement after Delhi, Mumbai, Bangalore and Chennai.

Thoothukudi, also known by its former name Tuticorin, is a port city, a municipal corporation and an industrial city in Thoothukudi district in the Indian state of Tamil Nadu. Tuticorin Port Trust is one of the 13 major ports in India. It was declared to be a major port on 11 July 1974.

• The Grand Trunk Road is not only in India's but one of the of South Asia's oldest and longest major roads. The road often called the "Gernaili Sadak" (the Generals' Road) and Sadak-e-Azam ('The Grand Road') covers a distance of over 2,500 kilometers (1,600 mi). It was built by Sher Shah Suri.
  
• At present, it extends from Amritsar to Kolkata. It is bifurcated into 2 segments : (a) National Highway (NH)-1 from Delhi to Amritsar, and (b) NH- 2 from Delhi to Kolkata.
  

Port of Kandla is situated in the Gulf of Kutch, in the province of Gujarat Kutch, the port of Kandla has been in existence since the mid-1900s, specifically constructed to fulfil the dearth of marine harbours in the country's western water route.

The Golden Quadrilateral is a national highway network connecting most of the major industrial, agricultural and cultural centers of India. It forms a quadrilateral connecting the four major metro cities of India, viz., Delhi, Kolkata, Mumbai, and Chennai.

D. Varanasi

Major cities on the route of Delhi Kolkata are :

1. Aligarh
2. Tundla
3. Kanpur
4. Allahabad
5. Mughal Sarai
6. Gaya
7. Dhanbad

Mist and Fog are the terms used to describe low visibility caused by water droplets suspended in the air. Mist is a term used to describe visibility of greater than 1 km while Fog is the term used when visibility is less than 1 km.

Fog is effectively surface cloud and has a significant impact on the conduct of flying operations, particularly landing and take-off.

The distribution pattern of the Railway network in the country has been largely influenced by physiographic, economic and administrative factors: The ganga plains with their vast level land, high population density and rich agricultural resources provided the most favourable condition for their growth.

Koyna power plant is situated in Satara district near Patan and taken over by government of Maharasthra after independence. It is a complex project with four dams with largest dam on Koyna River and hence the name Koyna hydel power plant.