Which one of the following is bulk modulus K of a fluid?

Q.

Which one of the following is bulk modulus K of a fluid?

A. ρ∂p/∂ρ

B. (∂p/∂ρ) /ρ

C. ρ∂ρ/∂p

D. (∂ρ/∂p) /ρ

Answer & Explanation

Bulk modulus K of a fluid = ρ∂p/∂ρ

Thus correct option is: A.

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Q.

A capillary of diameter d is submerged partially in liquid of density ρ and surface tension σ. If the angle of contact is θ, the capillary rise will be

A. σ cos θ/ (ρgd)

B. 2σ cos θ/ (ρgd)

C. 4σ cos θ/ (ρgd)

D. 8σ cos θ/ (ρgd)

Answer & Explanation

Q.

Existence of velocity potential implies that

A. Flow is in continuum

B. Flow is irrotational

C. Fluid is ideal

D. Fluid is compressible

Answer & Explanation

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

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Which one of the following is bulk modulus K of a fluid?

Q. Which one of the following is bulk modulus K of a fluid?

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