Railways Technical Ability Fluid Mechanics and Machinery Question Bank Fluid Mechanics

  • question_answer Which of the following statements is false?

    A) The lift force (per unit length) on a body depends on the density of the fluid

    B) For laminar flow through a pipe, the loss of head is directly proportional to velocity as well as viscosity of fluid

    C) A hydraulic jump occurs when a supercritical flow comes across sub critical flow

    D) At the stall point for the airfoil, the lift is minimum and the drag decreases sharply beyond it.

    Correct Answer: D

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