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The curl of a given velocity field (i.e. ∇× v ) indicates the...

Q.  
The curl of a given velocity field (i.e. ∇× v ) indicates the rate of


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Answer :   Option: A


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More Questions Fluid Mechanics:

Q.  
The normal stress is the same in all directions at a point in a fluid only when

A. The fluid is frictionless

B. The fluid is frictionless and incompressible

C. The fluid has zero viscosity and is at rest

D. One fluid layer has no motion relative to an adjacent layer


Answer & Explanation

Q.  
With usual symbols, the viscosity of nonnewtonian fluids can be represented as

A. τ = μ du/dy

B. τ = nμ du/dy

C. τ = μp du/dy

D. τ = μ (du/dy)^n


Answer & Explanation

Q.  
Select the correct nomenclature given to the oscillations of a floating body

A. Pitching - transverse axis

B. Rolling - longitudinal axis

C. Yawing - vertical axis

D. All of the above


Answer & Explanation

Q.  
Which one of the following stream functions ψ is a possible irrotational flow field?

A. ψ = y^2−x^2

B. ψ = Ax^2y^2

C. ψ = Asin (xy)

D. ψ = Ax+By^2


Answer & Explanation
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