Q110. Which former Union Territory district was publicised as fully solar powered?
[SSC CHSL, 12 November 2025]
(A) Diu
(B) Puducherry
(C) Mahe
(D) Karaikal
Answer: A. Diu
Explanation: Diu became noted for meeting its electricity requirements through solar installations, including local photovoltaic generation. Its example highlights how distributed and grid-connected solar projects can transform supply in a geographically compact coastal district.
Q109. Consider two statements: petroleum reserves occur in Assam sedimentary basins, and major offshore fields occur in the Arabian Sea. Which is correct?
[SSC CHSL, 28 November 2025]
(A) Only the first
(B) Only the second
(C) Both
(D) Neither
Answer: C. Both
Explanation: Assam contains some of India’s earliest onshore petroleum-producing areas, including Digboi and Naharkatiya. The Arabian Sea continental shelf hosts Mumbai High. India’s petroleum deposits therefore occur in both onshore sedimentary basins and offshore geological settings.
Q108. Which country jointly initiated the International Solar Alliance with India?
[SSC CHSL, 18 November 2025]
(A) United States
(B) Brazil
(C) France
(D) Italy
Answer: C. France
Explanation: India and France launched the International Solar Alliance to encourage solar-energy cooperation. The initiative supports financing, knowledge-sharing and deployment among interested member countries. Its secretariat is based near Gurugram in Haryana.
Q107. Which figure was cited for India’s cumulative installed solar capacity in July 2025?
[SSC CHSL, 22 November 2025]
(A) 50 GW
(B) 67.75 GW
(C) 119.02 GW
(D) 175 GW
Answer: C. 119.02 GW
Explanation: Installed solar capacity reflects the sum of rated output from commissioned solar assets, including ground-mounted, rooftop and other systems. The examination quoted 119.02 gigawatts for July 2025; it should not be read as annual electrical production.
Q106. Which statement is correct? I. Ankleshwar and Kalol are in Maharashtra. II. Petroleum occurs in Krishna–Godavari and Cauvery basins.
[SSC CGL, 25 September 2025]
(A) Only I
(B) Only II
(C) Both I and II
(D) Neither I nor II
Answer: B. Only II
Explanation: Ankleshwar and Kalol oilfields are in Gujarat, not Maharashtra. The Krishna–Godavari and Cauvery sedimentary basins contain hydrocarbon prospects and producing areas. India’s oil and gas geography spans both western and eastern basins.
Q105. Which resource is non-renewable?
[SSC Selection Post, 2 August 2025]
(A) Coal
(B) Wind
(C) Tidal energy
(D) Solar radiation
Answer: A. Coal
Explanation: Coal accumulates through slow geological transformation of buried vegetation. Once mined and burned, a coal deposit cannot be replaced within a human lifetime. Wind, tidal movement and sunlight are recurring natural flows used to generate power.
Q104. Which fuel is commonly supplied in cylinders for household cooking?
[SSC CHSL, 20 November 2025]
(A) Argon
(B) Nitrogen
(C) Oxygen
(D) Liquefied petroleum gas
Answer: D. Liquefied petroleum gas
Explanation: LPG is typically a mixture dominated by propane and butane. It is liquefied under moderate pressure for economical storage and cylinder distribution. Domestic cooking is a major use, although pipeline natural gas is another option in connected areas.
Q103. Biofuel made from non-edible agricultural residue belongs to which generation?
[SSC CGL, 18 September 2025]
(A) First generation
(B) Second generation
(C) Third generation
(D) Fourth generation
Answer: B. Second generation
Explanation: Second-generation biofuels use lignocellulosic feedstocks such as straw, stalks and other crop residues rather than primarily edible food crops. This can reduce direct competition with food uses and help manage agricultural waste if production is sustainable.
Q102. What percentage of ethanol is targeted in E20 blended petrol?
[SSC CHSL, 28 November 2025]
(A) 20%
(B) 40%
(C) 60%
(D) 50%
Answer: A. 20%
Explanation: E20 means petrol containing roughly one-fifth ethanol by volume. Ethanol is an oxygenated fuel commonly made from sugar- or starch-containing agricultural feedstocks. Blending aims to reduce some petrol demand, though lifecycle effects depend on sourcing.
Q101. Which nuclear generating station is situated in Maharashtra?
[RPF Constable, 6 March 2025]
(A) Kaiga
(B) Tarapur
(C) Rawatbhata
(D) Kakrapar
Answer: B. Tarapur
Explanation: Tarapur Atomic Power Station is on the Maharashtra coast. Kaiga is in Karnataka, Rawatbhata in Rajasthan and Kakrapar in Gujarat. Knowing station–state pairs helps distinguish nuclear centres from nearby hydroelectric and thermal-power complexes.
