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Which of the following increases with the reduction of area in a venturi?

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in Automotive Engine Design by (137k points)
Which of the following increases with the reduction of area in a venturi?

(a) Temperature

(b) Velocity

(c) Enthalpy

(d) Entropy

I have been asked this question during an interview.

My doubt stems from Petrol Engine Fuel Supply System topic in section Petrol Engine Fuel Supply System of Automotive Engine Design

1 Answer

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Correct answer is (b) Velocity

The best I can explain: In the venturi the passage is is minimum. Thus due to less area, the air velocity increases and because of this increase in velocity, a decrease in pressure is caused at the nozzle which is located in venturi itself.

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