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Fluid-mechanics Questions Set 24:

Quiz Mode

The bulk modulus of an ideal fluid is:

Zero

Infinite

Unity

Solution:

What is the average value of the coefficient of velocity?

0.62

0.84

0.97

0.65

Solution:

Who is credited with Bernoulli's principle?

Daniel Bernoulli

Eratosthenes and Thales

Gryllus rubens

Maria Gaetana Agnesi

Solution:

The mass of 5 m³ of a certain liquid is 7 tonnes. What is its mass density (in kg/m³)?

1700 kg/m³

1600 kg/m³

1500 kg/m³

1400 kg/m³

Solution:

What causes pressure drag?

Turbulent flow in the wake

Formation of a wake

Existence of a stagnation point in front of the body

High Reynolds number

Solution:

A fluid is passing through a pipe with an inlet area of 2 m² and an outlet area of 3 m². The inlet velocity is 3 m/s. Find the outlet velocity.

2 m/s

18 m/s

8 m/s

5 m/s

Solution:

Calculate the pressure difference across an air bubble of diameter 0.001 m which is immersed in water. The surface tension is given as 0.072 N/m.

244.5 N/m^2

288 N/m^2

294 N/m^2

296.4 N/m^2

Solution:

In a stationary fluid, how does the local pressure of the fluid vary?

With depth only

In the horizontal direction only

Both with depth and along the horizontal direction

Neither with depth nor along the horizontal direction

Solution:

Which branch of fluid mechanics deals with the translation, rotation, and deformation of fluid elements without considering the forces and energy causing such motion?

Fluid dynamics

Fluid kinematics

Fluid kinetics

Hydraulics

Solution:

Consider the following expression:

Prⁿ = A/B

Where:

Pr = Prandtl number

n = constant exponent

A = thickness of thermal boundary layer

B = thickness of the hydrodynamic boundary layer

What is the correct value of the exponent n?

-2/3

-1/3

-1

-2

Fluid-mechanics Questions Set 24:

The bulk modulus of an ideal fluid is:

Solution:

What is the average value of the coefficient of velocity?

Solution:

Who is credited with Bernoulli's principle?

Solution:

The mass of 5 m³ of a certain liquid is 7 tonnes. What is its mass density (in kg/m³)?

Solution:

What causes pressure drag?

Solution:

A fluid is passing through a pipe with an inlet area of 2 m² and an outlet area of 3 m². The inlet velocity is 3 m/s. Find the outlet velocity.

Solution:

Calculate the pressure difference across an air bubble of diameter 0.001 m which is immersed in water. The surface tension is given as 0.072 N/m.

Solution:

In a stationary fluid, how does the local pressure of the fluid vary?

Solution:

Which branch of fluid mechanics deals with the translation, rotation, and deformation of fluid elements without considering the forces and energy causing such motion?

Solution:

Consider the following expression:

Prⁿ = A/B

Where:

Pr = Prandtl number

n = constant exponent

A = thickness of thermal boundary layer

B = thickness of the hydrodynamic boundary layer

What is the correct value of the exponent n?

Solution:

Related Question Sets:

Related Topics:

Fluid-mechanics Questions Set 24:

The bulk modulus of an ideal fluid is:

Solution:

What is the average value of the coefficient of velocity?

Solution:

Who is credited with Bernoulli's principle?

Solution:

The mass of 5 m³ of a certain liquid is 7 tonnes. What is its mass density (in kg/m³)?

Solution:

What causes pressure drag?

Solution:

A fluid is passing through a pipe with an inlet area of 2 m2 and an outlet area of 3 m2. The inlet velocity is 3 m/s. Find the outlet velocity.

Solution:

Calculate the pressure difference across an air bubble of diameter 0.001 m which is immersed in water. The surface tension is given as 0.072 N/m.

Solution:

In a stationary fluid, how does the local pressure of the fluid vary?

Solution:

Which branch of fluid mechanics deals with the translation, rotation, and deformation of fluid elements without considering the forces and energy causing such motion?

Solution:

Consider the following expression: Prn = A/B Where: Pr = Prandtl number n = constant exponent A = thickness of thermal boundary layer B = thickness of the hydrodynamic boundary layer What is the correct value of the exponent n?

Solution:

Related Question Sets:

Related Topics:

A fluid is passing through a pipe with an inlet area of 2 m² and an outlet area of 3 m². The inlet velocity is 3 m/s. Find the outlet velocity.

Consider the following expression:

Prⁿ = A/B

Where:

Pr = Prandtl number

n = constant exponent

A = thickness of thermal boundary layer

B = thickness of the hydrodynamic boundary layer

What is the correct value of the exponent n?