Which of the following represents liquid propellants?
Correct answer: B. N2O4 + UDMH
- A. N2O4 + acrylic rubber
- B. N2O4 + UDMH
- C. Polybutadiene + ammonium perchlorat
- D. Nitroglycerine + nitrocellulose
Explanation
Represents liquid propellants commonly used in rocket engines. This combination consists of nitrogen tetroxide (N2O4) as the oxidizer and unsymmetrical dimethylhydrazine (UDMH) as the fuel. This combination is favored for its storability, high energy density, and relatively low freezing point, making it suitable for long-duration missions and storage in space.
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