Chemical Engineering Thermodynamics (MCQs)

A nozzle is a device, which

  • A. Increases kinetic energy and decreases pressure
  • B. Reduces kinetic energy and increases pressure
  • C. Reduces both kinetic energy and pressure
  • D. Increases both kinetic energy and pressure
Answer: Option A.
Explanation: 
Usually a nozzle is an converging duct so along the flow the area decreases so, by continuity we can say velocity increases when velocity increases (kinetic energy increases) we can say pressure decreases by bernoulli equation.

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