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Existence of velocity potential implies that

Q.  
Existence of velocity potential implies that


Answer & Explanation

Existence of velocity potential implies that flow is irrotational.

Thus correct option is: B.

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More Questions Fluid Mechanics:

Q.  
In the boundary layer, the flow is

A. Viscous and rotational

B. Inviscid and irrotational

C. Inviscid and rotational

D. Viscous and irrotational


Answer & Explanation

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

A. Change of flow at a point

B. Twisting of the lines of flow

C. Deformation

D. Translation


Answer & Explanation

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
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