1) Recently, ISRO successfully launched a rocket using indigenous scramjet engine. Which of the following statements is/are correct with respect to scramjet engine technology?
a) It is an air breathing propulsion system.
b) It has a greater thrust compared with rockets powered by liquid or cryogenic fuel.
c) Scramjet comes into play only when the rocket goes beyond Mach 5.
d) All of the above
Answers
1) d
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