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 co -efficient of velocity as compared to the coefficient of discharge is -
  • a)
    Less
  • b)
    More
  • c)
    Equal
  • d)
    Less or more depending on flow
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
co -efficient of velocity as compared to the coefficient of discharge ...
Explanation:


  • Coefficient of Discharge: The coefficient of discharge is a dimensionless factor that represents the efficiency of a fluid flowing through an orifice or a nozzle. It is calculated as the ratio of actual discharge to theoretical discharge.

  • Coefficient of Velocity: The coefficient of velocity is also a dimensionless factor that represents the velocity of a fluid jet at the vena contracta (the point where the jet is at its minimum diameter). It is calculated as the ratio of actual velocity to theoretical velocity.

  • Comparison: When comparing the coefficient of velocity to the coefficient of discharge, it is observed that the coefficient of velocity is generally greater than the coefficient of discharge.

  • Reasoning: This is because the coefficient of velocity takes into account only the velocity of the fluid jet, which is usually higher than the discharge rate. On the other hand, the coefficient of discharge considers various factors such as friction losses, contraction losses, and other inefficiencies in the flow, leading to a lower value compared to the coefficient of velocity.

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