Boundary layer separation is characterised by one of the conditions given below, where ‘Re’ is the Reynolds number for the flow. Select the appropriate conditions.

Byadmin August 13, 2022

Question: Boundary layer separation is characterised by one of the conditions given below, where ‘Re’ is the Reynolds number for the flow. Select the appropriate conditions.
[A].

Re << 1, accelerating flow

[B].

Re >> 1, accelerating flow

[C].

Re << 1, decelerating flow

[D].

Re >>1, decelerating flow

Answer: Option D

Explanation:

No answer description available for this question.

Fluid Mechanics

Fluid is a substance that___________________?

Fluid is a substance that___________________?

A. cannot be subjected to shear forces
B. always expands until it fills any container
C. has the same shear stress.at a point regardless of its motion
D. cannot remain at rest under action of any shear force
E. flows

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Capillary tube method of viscosity measurement is based on the

Question: Capillary tube method of viscosity measurement is based on the
[A].

Hagen-Poiseulle’s equation
[B].
Stoke’s law
[C].
Navier-stokes equation
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

For a constant pressure reversible process, the enthalpy change (ΔH) of the system is

Question: For a constant pressure reversible process, the enthalpy change (ΔH) of the system is
[A].

Cv.dT
[B].
Cp.dT
[C].

[D].

Answer: Option C

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Mass Transfer

A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is

Question: A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is
[A].

0.54
[B].
1.04
[C].
1.24
[D].
1.94

Answer: Option C

Explanation:

No answer description available for this question.

Read More A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is
CHEMICAL ENGINEERING | Fertiliser Technology

Effectiveness of a fertiliser is independent of the

Question: Effectiveness of a fertiliser is independent of the
[A].

nature of soil
[B].
type of crop
[C].
pH of soil
[D].
none of these

Answer: Option D

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Fluid Mechanics

For water, when the pressure increases, the viscosity

Question: For water, when the pressure increases, the viscosity
[A].

also increases
[B].
decreases
[C].
remains constant
[D].
first decreases, and then increases

Answer: Option D

Explanation:

No answer description available for this question.

Read More For water, when the pressure increases, the viscosity

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