Minerals & Industries — Set 8
Jharkhand GK · खनिज और उद्योग · Questions 71–80 of 160
The Tata Motors plant in Jamshedpur manufactures which products?
Correct Answer: B. Commercial vehicles (trucks, buses) — established 1945
Tata Motors' Jamshedpur plant, established in 1945 (when it was part of TELCO — Tata Engineering and Locomotive Company), manufactures commercial vehicles including trucks and buses. The Jamshedpur plant is Tata Motors' oldest and largest commercial vehicle manufacturing facility. Tata trucks and buses made in Jamshedpur are used across India and in export markets.
What is the major challenge for coal mining in Jharkhand related to the Jharia coalfield?
Correct Answer: B. Underground coal fires, waterlogging, and displacement of residents
The major challenges for coal mining in Jharia include underground coal fires (burning since 1916), waterlogging in underground mines, and the displacement of thousands of residents from areas where underground fires have made habitation unsafe. These challenges have reduced the productive capacity of the Jharia coalfield. BCCL and the government have been working on rehabilitation plans for decades.
Jharkhand was carved from Bihar in 2000. What was its mineral contribution to Bihar before separation?
Correct Answer: B. Undivided Bihar with Jharkhand had virtually all of Bihar state's mineral wealth
Before Jharkhand's formation in 2000, the mineral-rich areas of what is now Jharkhand (particularly the Chotanagpur Plateau) contained virtually all of the undivided Bihar state's significant mineral resources. Bihar proper (the northern plains) had no significant mineral deposits. The loss of Jharkhand was a major blow to Bihar's revenue base from minerals.
The Durgapur Steel Plant in West Bengal is dependent on coal supply from which Jharkhand area?
Correct Answer: B. Jharia and Bokaro coalfields in Jharkhand
The Durgapur Steel Plant and other steel plants in West Bengal are dependent on coking coal supplies from the Jharia and Bokaro coalfields in Jharkhand. The rail linkage between Jharkhand's coalfields and West Bengal's steel plants is a critical industrial supply chain. This interdependence makes Jharkhand's coal production crucial for the entire eastern India steel industry.
DCIL (Dalmia Cement Industries) and other cement plants in Jharkhand use which local mineral?
Correct Answer: B. Limestone and coal for cement production
Cement plants in Jharkhand use locally available limestone as the primary raw material along with coal for kilns. Jharkhand has limestone deposits in Palamu and other districts. The coal resources of Jharkhand provide cheap energy for cement manufacture, giving the state a cost advantage in cement production.
The Koderma district of Jharkhand is known for mica. What are the different types of mica found here?
Correct Answer: B. Muscovite (potassium mica) and phlogopite (magnesium mica)
Koderma district has both muscovite (ruby mica, potassium mica) and phlogopite (amber mica, magnesium mica) deposits. Muscovite mica is used in electrical insulation, cosmetics, and paints due to its excellent dielectric properties. Phlogopite mica, which can withstand higher temperatures, is used in aerospace and defence applications.
The Adityapur Industrial Area near Jamshedpur was developed for which purpose?
Correct Answer: B. Small and medium enterprise (SME) industrial area, ancillary to Tata Steel
The Adityapur Industrial Area (now part of Adityapur Industrial Township, Gamharia) was developed near Jamshedpur as a major industrial hub for small and medium enterprises, many of which supply components and materials to Tata Steel and Tata Motors. It is one of the largest industrial areas in Jharkhand. The industrial town has grown significantly and is now a separate municipality.
The South Koel river and its tributaries flow through which mineral-rich area of Jharkhand?
Correct Answer: B. Iron ore and metallic minerals area of southern Jharkhand (Singhbhum-Gumla)
The South Koel river flows through the iron ore and metallic minerals-rich areas of southern Jharkhand, including parts of Singhbhum and Gumla districts. The South Koel basin has significant deposits of iron ore, manganese, and other metallic minerals. The river eventually joins the Sankh to form the Brahmani river.
BCCL (Bharat Coking Coal Limited) is a subsidiary of which company?
Correct Answer: B. Coal India Limited (CIL)
BCCL (Bharat Coking Coal Limited) is a subsidiary of Coal India Limited (CIL), which is the world's largest coal mining company by production. BCCL specifically mines coking coal in the Jharia coalfield of Dhanbad. Coal India Limited is a Maharatna central public sector enterprise under the Ministry of Coal.
The Dimna Lake near Jamshedpur is associated with which industry?
Correct Answer: B. Water supply for Tata Steel Jamshedpur plant and the city
Dimna Lake (Dimna Dam) near Jamshedpur was constructed to provide water supply to the Tata Steel plant and the city of Jamshedpur. The lake is now also a popular recreational spot. Tata Steel's industrial operations require massive amounts of water for cooling, processing, and other uses.