Which of the following relationship is valid for the equilibrium position of the float in a rotameter ?(where, Df= Drag force on the float Bf = Buoyant force on the float Wf = Weight of the float)

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Question: Which of the following relationship is valid for the equilibrium position of the float in a rotameter ?(where, Df= Drag force on the float Bf = Buoyant force on the float Wf = Weight of the float)
[A].

Df + Bf = Wf

[B].

Df = Bf + Wf

[C].

Df + Bf + Wf =0

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Bernoulli’s equation for fluid flow is derived following certain assumptions. Out of the assumptions listed below, which set of assumptions is used in derivation of Bernoulli’s equation ?A. Fluid flow is frictionless & irrotational. B. Fluid flow is steady. C. Fluid flow is uniform & turbulent.D. Fluid is compressible.E. Fluid is incompressible.

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Question: Bernoulli’s equation for fluid flow is derived following certain assumptions. Out of the assumptions listed below, which set of assumptions is used in derivation of Bernoulli’s equation ?A. Fluid flow is frictionless & irrotational. B. Fluid flow is steady. C. Fluid flow is uniform & turbulent.D. Fluid is compressible.E. Fluid is incompressible.
[A].

A, C, D

[B].

B, D, E

[C].

A, B, E

[D].

A, D, E

Answer: Option C

Explanation:

No answer description available for this question.

Bernoulli’s equation for steady, frictionless, continuous flow states that the __________ at all sections is same.

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Question: Bernoulli’s equation for steady, frictionless, continuous flow states that the __________ at all sections is same.
[A].

total pressure

[B].

total energy

[C].

velocity head

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

From the passage it is clear that it is the legislature that

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Question: From the passage it is clear that it is the legislature that
[A].

invests the administrative authority with enormous powers

[B].

embodies rules

[C].

has the larger interests of public welfare

[D].

leaves administrative authority enough discretion to interpret rules

Answer: Option A

Explanation:

No answer description available for this question.

Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f1 and that for smooth pipe is f2. Pick out the correct statement.

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Question: Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f1 and that for smooth pipe is f2. Pick out the correct statement.
[A].

f1 = f2

[B].

f1 < f2

[C].

f1 > f2

[D].

data not sufficient to relate f1 & f2

Answer: Option C

Explanation:

No answer description available for this question.

As per Newton’s law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to(where, μ = fluid viscosity)

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Question: As per Newton’s law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to(where, μ = fluid viscosity)
[A].

1/μ

[B].

μ

[C].

μ2

[D].

1/μ2

Answer: Option B

Explanation:

No answer description available for this question.

According to the passage, there is always a gap between

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Question: According to the passage, there is always a gap between
[A].

rules of natural justice and their application

[B].

conception of a rule and its concretisation

[C].

demand for natural justice and its realisation

[D].

intention and execution

Answer: Option A

Explanation:

No answer description available for this question.