ISRO Successfully Tests Semi-Cryogenic Engine for Venus Mission 'Shukrayaan-1'
The Indian Space Research Organisation (ISRO) achieved a major milestone by successfully testing a new semi-cryogenic engine intended for the upcoming Venus mission.
2-Minute Summary (TL;DR)
- ISRO tested the semi-cryogenic engine for 200 seconds at Mahendragiri.
- The engine uses a combination of Liquid Oxygen (LOX) and Kerosene.
- It is intended to power the LVM3 for the Shukrayaan-1 mission to Venus.
- Semi-cryogenic engines are more efficient and environmentally friendly than traditional ones.
How This Topic is Tested in Competitive Exams
| Exam | Frequency | Approx. Marks | What Gets Asked |
|---|---|---|---|
| SSC (CGL / CHSL / MTS) | High | 4–8 | Basic science, space missions, ISRO launches, and defence technology are standard SSC GK topics. |
| UPSC / State PCS | Medium | 5–8 | UPSC tests Science & Technology through governance: space policy, biotech regulations, cyber security. |
| Railway (RRB NTPC / Group D) | Very High | 6–10 | Science and Technology is one of the largest GK sections in Railway papers. |
What to Memorize from This Topic
- ISRO missions: satellite name, purpose, launch date, orbit type
- Defence acquisitions: system name, origin country, inducted into which force
- COVID/health research: vaccine names, institutes involved, approval status
- Technology achievements: first-ever milestones, world records, India-specific achievements
- Scientific organizations: HQ, head, purpose (CSIR, DRDO, BARC, ICAR)
Practice Questions
Q1. What fuel combination is used in ISRO's newly tested semi-cryogenic engine?
- Liquid Hydrogen and Liquid Oxygen
- Liquid Oxygen and Kerosene
- Solid Fuel and Liquid Oxygen
- Hydrazine and Nitrogen Tetroxide
Explanation: The semi-cryogenic engine uses Liquid Oxygen as the oxidizer and Kerosene as the fuel.
Q2. Which ISRO mission will primarily benefit from the new semi-cryogenic engine technology?
- Gaganyaan-2
- Mangalyaan-2
- Shukrayaan-1
- Chandrayaan-4
Explanation: The engine is specifically being developed to enhance the payload capacity for the Shukrayaan-1 mission to Venus.
How to Prepare Science & Technology for Government Exams
For Railway exams, make flashcards for every major ISRO launch — name, payload, purpose, date. These repeat frequently.
For SSC, focus on defence acquisitions and their strategic significance rather than technical specs.
For UPSC, connect every scientific development to policy — climate targets, digital India, health policy.
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