Multiple choice

A propellant composed of solid fuel and a liquid oxidiser is known as

  1. hybrid propellant

  2. liquid propellant

  3. double base propellants

  4. composite propellants

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A Correct answer
Explanation

When the propellant has a solid fuel and a liquid oxidiser composition, it is called a hybrid propellant. For example: a mixture of acrylic rubber and liquid dinitrogen tetraoxide.