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Consider the following statements:
1. A ramjet is a form of air-breathing jet engine that uses the vehicle’s forward motion to compress incoming air for combustion.
2. A scramjet is a type of ramjet airbreathing jet engine where combustion occurs in supersonic airflow.
3. Ramjets work most efficiently at hypersonic speeds.
How many of the statements given above are correct?
  • a)
    Only one
  • b)
    Only two
  • c)
    All three
  • d)
    None
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements:1. A ramjet is a form of air-breathi...
  • A ramjet is a form of air-breathing jet engine that uses the vehicle’s forward motion to compress incoming air for combustion without a rotating compressor. Fuel is injected in the combustion chamber where it mixes with the hot compressed air and ignites. A ramjet-powered vehicle requires an assisted take-off like a rocket assist to accelerate it to a speed where it begins to produce thrust. Hence statement 1 is correct.
    • Ramjets work most efficiently at supersonic speeds around Mach 3 (three times the speed of sound) and can operate up to speeds of Mach 6. However, the ramjet efficiency starts to drop when the vehicle reaches hypersonic speeds. Hence statement 3 is not correct.
  • A scramjet is a type of ramjet airbreathing jet engine where combustion occurs in supersonic airflow. A scramjet engine is an improvement over the ramjet engine as it efficiently operates at hypersonic speeds and allows supersonic combustion. Thus it is known as Supersonic Combustion Ramjet, or Scramjet. Hence statement 2 is correct
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Consider the following statements:1. A ramjet is a form of air-breathing jet engine that uses the vehicle’s forward motion to compress incoming air for combustion.2. A scramjet is a type of ramjet airbreathing jet engine where combustion occurs in supersonic airflow.3. Ramjets work most efficiently at hypersonic speeds.How many of the statements given above are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer?
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Consider the following statements:1. A ramjet is a form of air-breathing jet engine that uses the vehicle’s forward motion to compress incoming air for combustion.2. A scramjet is a type of ramjet airbreathing jet engine where combustion occurs in supersonic airflow.3. Ramjets work most efficiently at hypersonic speeds.How many of the statements given above are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements:1. A ramjet is a form of air-breathing jet engine that uses the vehicle’s forward motion to compress incoming air for combustion.2. A scramjet is a type of ramjet airbreathing jet engine where combustion occurs in supersonic airflow.3. Ramjets work most efficiently at hypersonic speeds.How many of the statements given above are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements:1. A ramjet is a form of air-breathing jet engine that uses the vehicle’s forward motion to compress incoming air for combustion.2. A scramjet is a type of ramjet airbreathing jet engine where combustion occurs in supersonic airflow.3. Ramjets work most efficiently at hypersonic speeds.How many of the statements given above are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer?.
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