http://s12.postimg.org/spta4jyct/12_3.gif An incompressible non-viscous fluid fl
ID: 2243701 • Letter: H
Question
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An incompressible non-viscous fluid flows through a horizontal pipe that starts out with a certain radius (section A) and then widens to double the radius in section B. What happens to the flow velocity in section B, compared to section A?
Four times the velocity
Twice the velocity
Same velocity
Half the velocity
One fourth the velocity
Suddenly somebody closes a valve in section B, and the flow stops. How do the pressures in sections A and B compare now?
Higher pressure in B than in A
Same pressure in both sections
Lower pressure in B than in A
Explanation / Answer
1-one fourth of velocity(discharge=area*velocity=constant)
2-higher pressure in B than A(bernoulli's theorem)
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