Lifelines of the National Economy (Class - X)

National Highways are the primary road systems that are laid and maintained by the Central Public Works Department (CPWD).

NH1 is Sher Shah Suri Marg and runs from Delhi to Amritsar.

The road development project linking Delhi-Kolkata-Chennai-Mumbai-Delhi by six-lane Super Highways is the Golden Quadrilateral. Ahmedabad is not linked by the Golden Quadrilateral.

The East-West Corridor will be connecting Silchar (Assam) and Porbandar (Gujarat).

This is the correct answer. Unmetalled roads go out of use in the rainy season and are not considered as all weather roads.

This is the correct answer. National Highway 7 is the longest. It has a length of 2369 km between Varanasi and Kanyakumari. 

This is the correct answer. The Border Roads Organisation was established in 1960 for the development of the roads of strategic importance in the northern and north-eastern border areas in India.

The Indian Railways has been reorganised into 16 zones.

This is the correct answer. Waterways are the cheapest form of transport.

This is the correct answer. Himalayan region has high relief, sparse population and lack of economic opportunities. Western Ghats could only be passed through the gaps or passes. Western Rajasthan had sandy plains. These areas among many others in India were difficult for the IR to lay lines in.

This answer is correct as this statement is incorrect. The first train steamed off from Mumbai to Thane in 1853, covering a distance of 34 km.

This is the correct answer as this is the oldest artificial port of the country.

This is the correct answer as all statements are correct.

This is the correct answer. The East-West Canal is an inland waterway.

This is the correct answer as Kolkata Port is an inland riverine port.

This statement is incorrect. Hence, correct answer. India has inland waterways of total length 14,500 km. 3,700 km are navigable by mechanised boats.

This is the correct answer as air transport was nationalised in India in 1953.

This is the correct answer. Marmagao Port (Goa) is the premier iron ore exporting port of the country. It accounts for about fifty per cent of India's total iron ore export.

This is correct as Guwahati does not have an international airport.

This is the correct answer as cards and envelopes are considered as first class mail.

This is the correct answer as there is no channel called the Packet Mail Channel among the six mail channels introduced recently.

This is the correct answer as 24.04% of exports from India account for chemicals and allied products.