GATE_AE_2027_MOCK_02_Q05 GATE 2027 Aerospace Engineering All-India Master Mock 02 (Compressible Aerodynamics & High-Speed Propulsion) MCQ · 1 Mark
General Aptitude • Analytical & Spatial Aptitude • Deductive Logic & Syllogisms

Consider the following statements: 1. All scramjet combustors operate at supersonic internal speeds. 2. Some supersonic combustors use hydrogen fuel. Which conclusion necessarily follows?

(A) All scramjets use hydrogen fuel.
(B) Some scramjet combustors may use hydrogen fuel.
(C) No scramjet operates with hydrocarbon fuel.
(D) Hydrogen fuel can only combust at subsonic speeds.
Answer Key:
B

Step-by-Step Verified Solution

### Solution: Since all scramjet combustors operate supersonically and some supersonic combustors use hydrogen fuel, some scramjet combustors may use hydrogen fuel. Correct: B.
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