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Fluid-mechanics Questions Set 23:

Quiz Mode

What is the SI unit of mass density?

g/cm

g/cm²

kg/m³

m³/kg

Solution:

If the speed of sound is 340 m/s in a medium, and the Mach number for that medium is 1.6, calculate the velocity of the flow.

544 m/s

486 m/s

320 m/s

236 m/s

Solution:

When a fluid flows through a pipe with different cross-sections and various pipe fittings, the majority of the fluid's energy is lost due to

Pipe fittings

Friction

Expansion

Contraction

Solution:

A sphere of diameter 0.02 m falls in a fluid of kinematic viscosity 10 stokes with a terminal velocity of 0.02 m/s. What is the value of the coefficient of drag on the falling sphere?

100

Solution:

On which factor does surface tension not depend?

The temperature and pressure

The nature of the substance to which it is in contact at the surface

The area of contact surface

The nature of the fluid

Solution:

The boundary layer is formed as the flowing fluid comes in contact with the solid surface, because of the action of which of the following?

Surface tension

Forces of adhesion

Force of gravity acting on the fluid

Viscosity of the fluid

Solution:

For an ideal fluid flow, the net force is equal to the sum of the non-zero values of which forces?

Pressure force

Viscous force and gravity force

Pressure force and viscous force

Pressure force, viscous force, and compressibility force

Solution:

For steady incompressible flow through a closed-conduit of uniform cross-section, the direction of flow will always be:

From higher to lower elevation

From higher to lower pressure

From higher to lower velocity

From higher to lower piezometric head

Solution:

For any conjugated flow analysis, the following data is known:

h = Convective heat transfer coefficient = 200 (in SI unit)

k = Thermal conductivity = 50 (in SI unit)

L = Characteristic length = 20 cm

Find the Nusselt number of the analysis.

0.8

0.6

0.4

1.0

Solution:

What factors does the coefficient of bend in a pipe depend on?

angle of bend and radius of the pipe

angle of bend and radius of curvature of the bend

radius of curvature of the bend, pipe diameter, and angle of bend

radius of curvature of the bend and pipe diameter

Fluid-mechanics Questions Set 23:

What is the SI unit of mass density?

Solution:

If the speed of sound is 340 m/s in a medium, and the Mach number for that medium is 1.6, calculate the velocity of the flow.

Solution:

When a fluid flows through a pipe with different cross-sections and various pipe fittings, the majority of the fluid's energy is lost due to

Solution:

A sphere of diameter 0.02 m falls in a fluid of kinematic viscosity 10 stokes with a terminal velocity of 0.02 m/s. What is the value of the coefficient of drag on the falling sphere?

Solution:

On which factor does surface tension not depend?

Solution:

The boundary layer is formed as the flowing fluid comes in contact with the solid surface, because of the action of which of the following?

Solution:

For an ideal fluid flow, the net force is equal to the sum of the non-zero values of which forces?

Solution:

For steady incompressible flow through a closed-conduit of uniform cross-section, the direction of flow will always be:

Solution:

For any conjugated flow analysis, the following data is known:

h = Convective heat transfer coefficient = 200 (in SI unit)

k = Thermal conductivity = 50 (in SI unit)

L = Characteristic length = 20 cm

Find the Nusselt number of the analysis.

Solution:

What factors does the coefficient of bend in a pipe depend on?

Solution:

Related Question Sets:

Related Topics:

Fluid-mechanics Questions Set 23:

What is the SI unit of mass density?

Solution:

If the speed of sound is 340 m/s in a medium, and the Mach number for that medium is 1.6, calculate the velocity of the flow.

Solution:

When a fluid flows through a pipe with different cross-sections and various pipe fittings, the majority of the fluid's energy is lost due to

Solution:

A sphere of diameter 0.02 m falls in a fluid of kinematic viscosity 10 stokes with a terminal velocity of 0.02 m/s. What is the value of the coefficient of drag on the falling sphere?

Solution:

On which factor does surface tension not depend?

Solution:

The boundary layer is formed as the flowing fluid comes in contact with the solid surface, because of the action of which of the following?

Solution:

For an ideal fluid flow, the net force is equal to the sum of the non-zero values of which forces?

Solution:

For steady incompressible flow through a closed-conduit of uniform cross-section, the direction of flow will always be:

Solution:

For any conjugated flow analysis, the following data is known: h = Convective heat transfer coefficient = 200 (in SI unit) k = Thermal conductivity = 50 (in SI unit) L = Characteristic length = 20 cm Find the Nusselt number of the analysis.

Solution:

What factors does the coefficient of bend in a pipe depend on?

Solution:

Related Question Sets:

Related Topics:

For any conjugated flow analysis, the following data is known:

h = Convective heat transfer coefficient = 200 (in SI unit)

k = Thermal conductivity = 50 (in SI unit)

L = Characteristic length = 20 cm

Find the Nusselt number of the analysis.