Q90. Which India–Bhutan hydroelectric project was jointly inaugurated during the November 2025 state visit?
[RRB NTPC (Graduate) CBT-I, 16 March 2026 Shift 2]
(A) Punatsangchhu-I, 1200 MW
(B) Chukha, 336 MW
(C) Mangdechhu, 720 MW
(D) Punatsangchhu-II, 1020 MW
Answer: (D) Punatsangchhu-II, 1020 MW
Explanation: Punatsangchhu-II is a 1,020 MW hydropower project in Bhutan developed with India’s support. Cross-border hydropower cooperation supplies clean electricity and forms an important element of bilateral economic and energy relations.
Q89. India aims to increase wind energy capacity from about 42 GW to 140 GW by which year?
[SSC MTS 2025 cycle, held 06 February 2026 Shift 3]
(A) 2030
(B) 2035
(C) 2040
(D) 2050
Answer: (A) 2030
Explanation: The cited wind-power ambition uses 2030 as its target year. Wind expansion is part of the wider move toward non-fossil electricity capacity, alongside solar, hydro and nuclear generation. Targets must be distinguished from actual commissioned capacity.
Q88. Which of the following power projects is nuclear-energy based?
[RRB NTPC (UG) CBT-I, 13 August 2025 Shift 2]
(A) Koyna
(B) Tehri
(C) Kalpakkam
(D) Bhakra Nangal
Answer: (C) Kalpakkam
Explanation: Kalpakkam hosts the Madras Atomic Power Station in Tamil Nadu. Koyna, Tehri and Bhakra Nangal are associated with hydroelectric developments. Identifying the energy source and location of major projects is a common static-GK examination theme.
Q87. The Kopili Hydroelectric Project is located in which state?
[RRB NTPC (UG) CBT-I, 07 August 2025 Shift 3]
(A) Assam
(B) Sikkim
(C) Meghalaya
(D) Arunachal Pradesh
Answer: (A) Assam
Explanation: The Kopili hydroelectric complex is associated with Assam and is operated by NEEPCO. It harnesses river water in the northeastern region. Kopili’s location is an important question for understanding regional power generation and public-sector operators.
Q86. Pykara was the first water-power station of which Indian state?
[RRB NTPC (UG) CBT-I, 19 August 2025 Shift 3]
(A) Tamil Nadu
(B) Kerala
(C) Madhya Pradesh
(D) Odisha
Answer: (A) Tamil Nadu
Explanation: Pykara Hydroelectric Station is in the Nilgiris of Tamil Nadu and dates to the early twentieth century. Its development supported the state’s industrialisation and demonstrated hydropower generation using the elevation and flow of Himalayan-independent southern rivers.
Q85. The Rihand Hydroelectric Project is in which Uttar Pradesh district?
[RRB NTPC (UG) CBT-I, 08 August 2025 Shift 2]
(A) Guna
(B) Sonbhadra
(C) Robertsganj
(D) Saharanpur
Answer: (B) Sonbhadra
Explanation: Rihand Dam and its associated hydropower installations are situated in Sonbhadra district, Uttar Pradesh. The reservoir is known as Govind Ballabh Pant Sagar. The project is associated with the Rihand River, a tributary of the Son.
Q84. The Balimela Power Plant is located in which state?
[RRB NTPC (UG) CBT-II, 20 December 2025]
(A) Andhra Pradesh
(B) Jharkhand
(C) Odisha
(D) Chhattisgarh
Answer: (C) Odisha
Explanation: Balimela is a hydroelectric project in Odisha’s Malkangiri region. It is connected to the Sileru River system and has historically involved water-resource cooperation between neighbouring states for irrigation and electricity production.
Q83. In which year did Calcutta Electric Supply Corporation commission its first thermal station?
[RRB NTPC (UG) CBT-I, 22 August 2025 Shift 2]
(A) 1909
(B) 1916
(C) 1925
(D) 1899
Answer: (D) 1899
Explanation: CESC commissioned early electricity-generating infrastructure in Calcutta in 1899. This was a landmark in the city’s electrification during the colonial period and predates the modern national network of central and state electricity-generating companies.
Q82. Which atomic power station among these had the highest installed capacity in India in 2024?
[MPPSC State Service Prelims, 16 February 2025]
(A) Kakrapar
(B) Kaiga
(C) Kalpakkam
(D) Kudankulam
Answer: (D) Kudankulam
Explanation: Kudankulam’s operational units totalled 2,000 MWe in 2024, greater than the listed alternatives. Located in Tamil Nadu, it operates Russian-designed pressurised-water reactors. The comparison is explicitly tied to the year mentioned in the question.
Q81. What was India’s first commercial nuclear power station?
[MP Police Constable, 01 November 2025 Shift 2]
(A) Narora
(B) Kakrapar
(C) Kudankulam
(D) Tarapur
Answer: (D) Tarapur
Explanation: Tarapur Atomic Power Station in Maharashtra began commercial operations in 1969. Its initial boiling-water reactors marked the start of India’s commercial nuclear electricity generation, preceding later stations at Rajasthan, Kalpakkam, Narora and other sites.
