100. Which Indian state elected the world’s first democratically elected communist government headed by E. M. S. Namboodiripad?
[SSC GD Constable, 30 April 2026, Shift 3]
- (A) West Bengal
- (B) Kerala
- (C) Tripura
- (D) Andhra Pradesh
Answer: (B) Kerala
Explanation: Kerala elected a Communist Party of India-led government in 1957, with E. M. S. Namboodiripad becoming Chief Minister. This landmark is frequently described in competitive exams as the first democratically elected communist government, distinguishing an electoral victory from revolutionary seizures of power.
99. Who launched a rocket equipped with a fully single-piece 3D-printed engine in 2024?
[SSC GD Constable, 9 May 2026, Shift 3]
- (A) Agnikul
- (B) SpaceX
- (C) Blue Origin
- (D) Skyroot Aerospace
Answer: (A) Agnikul
Explanation: Chennai-based Agnikul Cosmos launched its Agnibaan SOrTeD technology demonstrator in May 2024. Its Agnilet engine was manufactured as a single 3D-printed piece, an innovation intended to simplify engine construction and reduce manufacturing steps in small launch vehicles.
98. The first residential university of the world, Nalanda, was founded under which Gupta ruler?
[RRB NTPC Graduate CBT-I, 24 March 2026, Shift 1]
- (A) Skandagupta
- (B) Samudragupta
- (C) Chandragupta I
- (D) Kumaragupta I
Answer: (D) Kumaragupta I
Explanation: Nalanda developed as an important Buddhist monastic and residential learning centre in present-day Bihar. Its early institutional history is conventionally associated with Gupta ruler Kumaragupta I in the fifth century CE, when the region supported scholarship and international intellectual exchange.
97. In which year was the Intel 4004, the world’s first commercial microprocessor, introduced?
[RRB NTPC Graduate CBT-I, 18 March 2026, Shift 3]
- (A) 1960
- (B) 1985
- (C) 1971
- (D) 1945
Answer: (C) 1971
Explanation: Intel introduced the four-bit 4004 microprocessor in November 1971, originally for a family of calculators. It placed central processing capabilities onto a commercially available integrated-circuit chip and helped establish the foundations of the modern microprocessor industry.
96. In which year was the first men’s ICC T20 World Cup played?
[SSC MTS, 11 February 2026, Shift 1]
- (A) 2007
- (B) 2008
- (C) 2012
- (D) 2004
Answer: (A) 2007
Explanation: The inaugural men’s T20 World Cup was staged in South Africa in September 2007. India won the tournament under M. S. Dhoni, defeating Pakistan in the Johannesburg final. The edition established Twenty20 cricket as a major global championship format.
95. John McFall, selected as the first person with a physical disability for an ESA astronaut feasibility programme, belongs to which country?
[RRB NTPC Undergraduate CBT-I, 7 May 2026, Shift 2]
- (A) United States
- (B) Australia
- (C) Canada
- (D) United Kingdom
Answer: (D) United Kingdom
Explanation: John McFall is a British former Paralympic sprinter selected by the European Space Agency in 2022 for its parastronaut feasibility initiative. The project examines how astronauts with certain physical disabilities could safely participate in future human space missions.
94. Who became the first Indian senior world champion in speed skating, winning the 1,000 m sprint in September 2025?
[RRB Technician Grade III, 10 March 2026, Shift 2]
- (A) Anish Raj
- (B) Dhanush Babu
- (C) Anandkumar Velkumar
- (D) Krish Sharma
Answer: (C) Anandkumar Velkumar
Explanation: Anandkumar Velkumar captured a senior world title in the 1,000-metre sprint at the 2025 World Speed Skating Championships. The achievement marked an important breakthrough for Indian roller sports at the highest international level, beyond junior competition results.
93. Who inaugurated India’s indigenously developed high-resolution weather forecasting systems in May 2025?
[DSSSB MTS, 24 April 2026, Shift 1]
- (A) President Droupadi Murmu
- (B) Prime Minister Narendra Modi
- (C) Earth Sciences Minister Jitendra Singh
- (D) Environment Minister Bhupender Yadav
Answer: (C) Earth Sciences Minister Jitendra Singh
Explanation: Union Minister Jitendra Singh inaugurated advanced indigenous weather-forecasting systems under India’s Mission Mausam initiative. Such high-resolution tools support better forecasting of local rainfall, severe weather and hazards; the examination presented the achievement as a pioneering global forecasting development.
92. Which World Health Assembly session adopted the first WHO Pandemic Agreement in May 2025?
[RRB NTPC Undergraduate CBT-I, 22 August 2025, Shift 3]
- (A) 77th
- (B) 76th
- (C) 78th
- (D) 79th
Answer: (C) 78th
Explanation: Member states adopted the WHO Pandemic Agreement at the seventy-eighth World Health Assembly in May 2025. The agreement addresses future pandemic prevention, preparedness and response, with attention to cooperation and equitable access to health products during international emergencies.
91. Which country developed LignoSat, the world’s first wooden satellite, in 2024?
[SSC CHSL Tier-I, 19 November 2025, Shift 1]
- (A) Japan
- (B) Russia
- (C) China
- (D) Israel
Answer: (A) Japan
Explanation: LignoSat was developed in Japan through collaboration between Kyoto University and Sumitomo Forestry. Its wooden structure was designed to examine the performance of timber in space, including whether such materials could contribute to more sustainable small satellite manufacturing.