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UPSC 1995: 114. Cryogenic engines find applications in
(a)sub-marine propulsion
(b)frost-free refrigerators
(c)rocket technology
(d)researches in superconductivity
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Not attemptedCorrect Answer: (c) rocket technology
Cryogenic engines burn super-cooled liquid hydrogen and liquid oxygen and are used as upper stages of launch vehicles to place heavy satellites into orbit. They are not used in submarines, refrigerators or superconductivity research. ([iasbook.com](https://www.iasbook.com/space-questions-2/?utm_source=openai))
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What is the correct answer to this UPSC 1995 Science & Technology question?▼
The correct answer is option (c): rocket technology. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Space Technology & Astronomy question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 1995, GS Paper 1, as Question 114. It falls under Science & Technology > Space Technology & Astronomy.
What is the difficulty level of this UPSC question?▼
This question is rated "easy". It tests basic recall and most well-prepared aspirants should answer it correctly.
How many UPSC Prelims questions have been asked from Space Technology & Astronomy?▼
UPSC has asked 69 questions from Space Technology & Astronomy (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.