Railways Technical Ability Metal Forming, Casting and Cutting Question Bank Metal Casting

  • question_answer The flow in the vaneless space between the impeller exit and diffuser inlet of a centrifugal compressor can be assumed as:

    A) Free vortex                    

    B) forced vortex

    C) Solid body rotation        

    D) logarithimic spiral

    Correct Answer: A

    Solution :

    The flow in the vaneless space between impeller exit and diffuser inlet of a centrifugal compressor can be assumed as free vortex.


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