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Questions and Answers
According to the equation of continuity in fluid dynamics, what is the relationship between the velocities at two different cross-sectional areas?
According to the equation of continuity in fluid dynamics, what is the relationship between the velocities at two different cross-sectional areas?
- $A_1 v_1 = A_2 v_2$ (correct)
- $A_1 v_1 = A_2 / v_2$
- $A_1 / v_1 = A_2 v_2$
- $A_1 / v_1 = A_2 / v_2$
In fluid dynamics, what is the relationship between velocity and radius (r) according to the given information?
In fluid dynamics, what is the relationship between velocity and radius (r) according to the given information?
- $v = R^2 r$
- $v = 4r$
- $v = r^2$
- $v^2 = R^2 r$ (correct)
What is the correct expression for the viscous force acting on a pebble dropped in a fluid?
What is the correct expression for the viscous force acting on a pebble dropped in a fluid?
- $F_v = Mg - VD^2g$
- $F_v = Mg / U$
- $F_v = Mg + U$
- $F_v = Mg - U$ (correct)
What does the critical velocity (vc) represent in fluid dynamics?
What does the critical velocity (vc) represent in fluid dynamics?
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What is the correct relationship between diameter (d) and velocity (v) for two different sections in fluid dynamics, based on the law of continuity?
What is the correct relationship between diameter (d) and velocity (v) for two different sections in fluid dynamics, based on the law of continuity?
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