Q70. Which refinery-location pairing is incorrect?
[SSC CHSL, 11 July 2024]
(A) Barauni–Bihar
(B) Tatipaka–Telangana
(C) Koyali–Gujarat
(D) Mathura–Uttar Pradesh
Answer: B. Tatipaka–Telangana
Explanation: Tatipaka is a refinery in Andhra Pradesh, not Telangana. Barauni is in Bihar, Koyali in Gujarat and Mathura in Uttar Pradesh. Correct location matching illustrates the distribution of petroleum refining infrastructure across India.
Q69. Jharia and Raniganj are famous for which resource?
[SSC MTS, 4 November 2024]
(A) Iron ore
(B) Coal
(C) Bauxite
(D) Natural gas
Answer: B. Coal
Explanation: Jharia and Raniganj are historic coalfields in the Damodar basin. Their development encouraged industrial clustering in Jharkhand and West Bengal. Jharia is also noted for underground coal fires, a serious mining and environmental challenge.
Q68. The Damodar Valley is best known for substantial deposits of which coal rank?
[SSC MTS, 14 November 2024]
(A) Anthracite
(B) Lignite
(C) Bituminous
(D) Peat
Answer: C. Bituminous
Explanation: The Damodar basin contains major Gondwana bituminous-coal deposits, including coking-coal resources essential for steelmaking. Anthracite is less common in India, while lignite is notably produced around Neyveli and selected western basins.
Q67. Rat-hole mining in India is chiefly associated with extraction of what?
[SSC MTS, 11 November 2024]
(A) Uranium
(B) Copper
(C) Limestone
(D) Coal
Answer: D. Coal
Explanation: Rat-hole mining involves narrow underground passages through which workers extract coal, especially from thin seams. It has attracted attention because of safety hazards, environmental damage and regulatory controversies, notably in parts of northeastern India.
Q66. Which river valley is NOT known for India’s major Gondwana coalfields?
[SSC MTS, 15 October 2024]
(A) Mahanadi
(B) Sutlej
(C) Godavari
(D) Son
Answer: B. Sutlej
Explanation: The Mahanadi, Godavari and Son valleys include significant Gondwana coal-bearing formations. The Sutlej is a Himalayan river associated with hydropower projects rather than a principal peninsular Gondwana coal basin.
Q65. Which statement about India’s coal sector is correct: major reserves in Jharkhand and Chhattisgarh; India is a major world coal producer?
[UPPSC RO/ARO, 11 February 2024]
(A) Both statements
(B) Only the first
(C) Only the second
(D) Neither
Answer: A. Both statements
Explanation: Jharkhand and Chhattisgarh hold substantial coal resources within the Gondwana geological system. India is also among the world’s largest coal-producing countries. Resource endowment supports domestic power generation, though quality and transport affect supply.
Q64. Rewa Solar Park is located in which Indian state?
[SSC MTS, 4 November 2024]
(A) Madhya Pradesh
(B) Rajasthan
(C) Gujarat
(D) Karnataka
Answer: A. Madhya Pradesh
Explanation: Rewa Ultra Mega Solar Park is located in Madhya Pradesh. Its development demonstrated large-scale grid-connected photovoltaic generation and electricity contracting. The project differs from Rajasthan’s Bhadla and Karnataka’s Pavagada solar parks.
Q63. The gradual geological conversion of plant remains into coal is called what?
[SSC MTS, 17 October 2024]
(A) Carbonisation or coalification
(B) Crystallisation
(C) Volcanism
(D) Sublimation
Answer: A. Carbonisation or coalification
Explanation: Buried plant material gradually transforms into coal through pressure, temperature and chemical change. This process increases the carbon content of the material over geological time. It explains why coal deposits are finite energy resources.
Q62. The UDAY scheme was launched primarily to improve which sector?
[SSC CHSL, 4 July 2024]
(A) Railway freight
(B) Crop irrigation
(C) Oil exploration
(D) Electricity distribution utilities
Answer: D. Electricity distribution utilities
Explanation: Ujwal DISCOM Assurance Yojana was designed to improve the finances and operating efficiency of power distribution companies. Such utilities buy electricity and deliver it to consumers. Better distribution performance is important even when additional generating capacity exists.
Q61. Match hydroelectric stations Doyang, Gomuti, Kopili and Ranganadi with the states Nagaland, Tripura, Assam and Arunachal Pradesh.
[UPSC NDA-II General Ability Test, 1 September 2024]
(A) Doyang–Nagaland; Gomuti–Tripura; Kopili–Assam; Ranganadi–Arunachal Pradesh
(B) Doyang–Nagaland; Gomuti–Assam; Kopili–Tripura; Ranganadi–Arunachal Pradesh
(C) Doyang–Arunachal Pradesh; Gomuti–Assam; Kopili–Tripura; Ranganadi–Nagaland
(D) Doyang–Arunachal Pradesh; Gomuti–Tripura; Kopili–Assam; Ranganadi–Nagaland
Answer: A. Doyang–Nagaland; Gomuti–Tripura; Kopili–Assam; Ranganadi–Arunachal Pradesh
Explanation: Doyang in Nagaland, Gomuti in Tripura, Kopili in Assam and Ranganadi in Arunachal Pradesh are hydroelectric stations of northeastern India. Steep relief and substantial river flows provide important regional opportunities for electricity generation.
