GATE 2010 AEROSPACE ENGINEERING (Q 21-30)

  1. Among the choices given below, the specific impulse is maximum for a
    1. cryogenic Rocket
    2. Solid Rocket
    3. Liquid Rocket
    4. Ramjet

    Answer:- Ramjet

  2. For a flow across an oblique shock which of the following statements is true?
    1. Component of velocity normal to shock decreases while tangential component increases.
    2. Component of velocity normal to shock increases while tangential component decreases.
    3. Component of velocity normal to shock is unchanged while tangential component decreases.
    4. Component of velocity normal to shock decreases while tangential component is unchanged.

    Answer:- Component of velocity normal to shock decreases while tangential component is unchanged.

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