Consider the following statements regarding the Scramjet engine: 1. A Scramjet engine uses atmospheric oxygen for combustion and operates efficiently at hypersonic speeds (Mach 5+). 2. Scramjet engines have multiple moving parts, including compressors and turbines, to manage supersonic airflow. Which of the statements given above is/are correct? |ForumIAS

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: A

Notes:

Explanation:

Statement 1 is correct: Scramjet engines are air-breathing and operate at hypersonic speeds by using atmospheric oxygen for combustion.
Statement 2 is incorrect: Scramjets have no moving parts and rely purely on the vehicle’s high speed to compress air for combustion.

Source– Forum IAS

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