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Fluid-mechanics Questions Set 4:

Quiz Mode

Which state of matter possesses the property of resisting shear stress?

Solid

Liquid

Gas

Fluid

Solution:

In a static fluid, the shear stress is:

always zero

always maximum

between zero to maximum

unpredictable

Solution:

The head loss through fluid flowing in a pipe due to friction is

the minor loss

the major loss

none of the above

both the minor and major losses

Solution:

If the flow has a Reynolds number of 3000, it will fall into which of the following categories?

Turbulent Flow

Laminar Flow

Steady Flow

Transitional Flow

Solution:

Which of the following expressions is used to find the pressure gradient in the Z direction?

- ∂p/∂z (δx, δy)

- ∂z/∂p (δx, δy, δz)

- ∂p/∂z (δx, δy, δz)

- ∂z/∂p (δx, δy)

Solution:

A body is submerged in water with a vertical force component Fz = 10 N and a horizontal force component Fx = -20 N. Determine the resultant force.

10√5 N

30 N

5√20 N

500 N

Solution:

Water at 15 °C flows at 5 m/s in a 200 mm pipe. At 30 °C, oil must flow in a 50 mm pipe for the two flows to be dynamically similar. The velocity (in m/s) of the oil flow is:

17.46

26.20

52.40

78.60

Solution:

Two pipes, each of diameter d, converge to form a pipe of diameter D. What should be the relation between d and D such that the outgoing velocity in the third pipe becomes half of that in each of the two pipes?

d = D/2

d = D/3

d = D/4

d = D/5

Solution:

A vertical column of height 40 m is filled with a liquid of density 1800 kg/m³. Given that the acceleration due to gravity at that place is 9.75 m/s², calculate the pressure exerted by the liquid at the base of the column.

702.00 kPa

743.06 kPa

695.81 kPa

710.50 kPa

Solution:

Consider the following data for flow inside a pipe:

Length of pipe (L) = 1 m

Diameter of pipe (D) = 0.1 m

Velocity at the inlet (V) = 10 m/s

Density of fluid (ρ) = 1000 kg/m³

Coefficient of viscosity (μ) = 10^-5 N·s/m²

Determine the nature of the flow with the given data.

Laminar

Transition from Laminar to Turbulent

Turbulent

None of the above

Fluid-mechanics Questions Set 4:

Which state of matter possesses the property of resisting shear stress?

Solution:

In a static fluid, the shear stress is:

Solution:

The head loss through fluid flowing in a pipe due to friction is

Solution:

If the flow has a Reynolds number of 3000, it will fall into which of the following categories?

Solution:

Which of the following expressions is used to find the pressure gradient in the Z direction?

Solution:

A body is submerged in water with a vertical force component Fz = 10 N and a horizontal force component Fx = -20 N. Determine the resultant force.

Solution:

Water at 15 °C flows at 5 m/s in a 200 mm pipe. At 30 °C, oil must flow in a 50 mm pipe for the two flows to be dynamically similar. The velocity (in m/s) of the oil flow is:

Solution:

Two pipes, each of diameter d, converge to form a pipe of diameter D. What should be the relation between d and D such that the outgoing velocity in the third pipe becomes half of that in each of the two pipes?

Solution:

A vertical column of height 40 m is filled with a liquid of density 1800 kg/m³. Given that the acceleration due to gravity at that place is 9.75 m/s², calculate the pressure exerted by the liquid at the base of the column.

Solution:

Consider the following data for flow inside a pipe:

Length of pipe (L) = 1 m

Diameter of pipe (D) = 0.1 m

Velocity at the inlet (V) = 10 m/s

Density of fluid (ρ) = 1000 kg/m³

Coefficient of viscosity (μ) = 10^-5 N·s/m²

Determine the nature of the flow with the given data.

Solution:

Related Question Sets:

Related Topics:

Fluid-mechanics Questions Set 4:

Which state of matter possesses the property of resisting shear stress?

Solution:

In a static fluid, the shear stress is:

Solution:

The head loss through fluid flowing in a pipe due to friction is

Solution:

If the flow has a Reynolds number of 3000, it will fall into which of the following categories?

Solution:

Which of the following expressions is used to find the pressure gradient in the Z direction?

Solution:

A body is submerged in water with a vertical force component Fz = 10 N and a horizontal force component Fx = -20 N. Determine the resultant force.

Solution:

Water at 15 °C flows at 5 m/s in a 200 mm pipe. At 30 °C, oil must flow in a 50 mm pipe for the two flows to be dynamically similar. The velocity (in m/s) of the oil flow is:

Solution:

Two pipes, each of diameter d, converge to form a pipe of diameter D. What should be the relation between d and D such that the outgoing velocity in the third pipe becomes half of that in each of the two pipes?

Solution:

A vertical column of height 40 m is filled with a liquid of density 1800 kg/m³. Given that the acceleration due to gravity at that place is 9.75 m/s², calculate the pressure exerted by the liquid at the base of the column.

Solution:

Consider the following data for flow inside a pipe: Length of pipe (L) = 1 m Diameter of pipe (D) = 0.1 m Velocity at the inlet (V) = 10 m/s Density of fluid (ρ) = 1000 kg/m³ Coefficient of viscosity (μ) = 10-5 N·s/m² Determine the nature of the flow with the given data.

Solution:

Related Question Sets:

Related Topics:

Consider the following data for flow inside a pipe:

Length of pipe (L) = 1 m

Diameter of pipe (D) = 0.1 m

Velocity at the inlet (V) = 10 m/s

Density of fluid (ρ) = 1000 kg/m³

Coefficient of viscosity (μ) = 10^-5 N·s/m²

Determine the nature of the flow with the given data.