If the laminar flow of the fluid having the viscosity μ is flowing through the pipe of the diameter D. Pressure gradient in the flow is \(\left( { - \frac{{\partial p}}{{\partial x}}} \right)\).What is the average velocity of flow? .

\(V = \frac{1}{{8\mu }}\left( { - \frac{{\partial p}}{{\partial x}}} \right){D^2}\)

\(V = \frac{1}{{32\mu }}\left( { - \frac{{\partial p}}{{\partial x}}} \right){D^2}\)

\(V = \frac{1}{{8\mu }}\left( { - \frac{{\partial p}}{{\partial x}}} \right){D^2}\)

\(V = \frac{1}{{16\mu }}\left( { - \frac{{\partial p}}{{\partial x}}} \right){D^2}\)

\(V = \frac{1}{{4\mu }}\left( { - \frac{{\partial p}}{{\partial x}}} \right){D^2}\)

Identify the incorrect option regarding laminar flow in a pipe of diameter D.

Lower fluid velocity promotes laminar flow

Higher viscosity promotes laminar flow

There is intermingling of fluid particles across the cross-section

In a laminar flow through pipe, the point of maximum instability exists at a distance of y from the wall which is

\(\frac{1}{2}\) of pipe radius R

\(\frac{3}{2}\) of pipe radius R

\(\frac{2}{3}\) of pipe radius R

\(\frac{1}{2}\) of pipe radius R

\(\frac{1}{3}\) of pipe radius R

For fully developed laminar pipe flow, the average velocity is

One-third of the maximum velocity

One-half of the maximum velocity

One-third of the maximum velocity

One-fourth of the maximum velocity

Two-third of the maximum velocity

Consider a laminar flow at zero incidence over a flat plate. The shear stress at the wall is denoted by τw. The axial positions x1 and x2 on the plate are measured from the leading edge in the direction of flow. If x2 > x1, then

\({\tau _w}{|_{{x_1}}} < {\tau _w}{|_{{x_2}}}\)

\({\tau _w}{|_{{x_1}}} = {\tau _w}{|_{{x_2}}} = 0\)

\({\tau _w}{|_{{x_1}}} = {\tau _w}{|_{{x_2}}} \ne 0\)

\({\tau _w}{|_{{x_1}}} > {\tau _w}{|_{{x_2}}}\)

\({\tau _w}{|_{{x_1}}} < {\tau _w}{|_{{x_2}}}\)

For steady flow of a viscous incompressible fluid through a circular pipe of constant diameter, the average velocity in the fully developed region is constant. Which one of the following statements about the average velocity in the developing region is TRUE?

It decreases until the flow is fully developed

It increases until the flow is fully developed

It is constant and is equal to the average velocity in the fully developed region

It decreases until the flow is fully developed

It is constant but is always lower than the average velocity in the fully developed region.

For laminar flow through a long pipe, the pressure drop per unit length is

In direct proportion to the cross-sectional area

In proportion to the diameter of the pipe

In inverse proportion to the square of the cross-sectional area

In inverse proportion to cross-sectional area

For steady, fully developed flow inside a straight pipe of diameter D, neglecting gravity effects, the pressure drop Δp over a length L and the wall shear stress τw are related by

\({\tau _w} = \frac{\Delta p{D^2}}{4{L^2}}\)

\({\tau _w} = \frac{{{\rm{\Delta }}pD}}{{4L}}\)

\({\tau _w} = \frac{\Delta p{D^2}}{4{L^2}}\)

\({\tau _w} = \frac{{{\rm{\Delta }}pD}}{{2L}}\)

\({\tau _w} = \frac{{4{\rm{\Delta }}pL}}{D}\)

Hydraulic gradient line (HGL) represents the sum of

Pressure head, kinetic head & datum head

For a steady incompressible laminar flow between two infinite parallel stationary plates, the shear stress variation is

quadratic with zero value at the plates

linear with zero value at the plates

linear with zero value at the center

quadratic with zero value at the plates

quadratic with zero value at the center

Couette flow is characterized by

steady, incompressible, laminar flow through a straight circular pipe

fully developed turbulent flow through a straight circular pipe

steady, incompressible, laminar flow between two fixed parallel plates

steady, incompressible, laminar flow between one fixed plate and the other moving with a constant velocity

the algebraic sum of discharges around each elementary circuit must be zero.

the head at each node be the same.

the piezometric head loss in each line of the circuit is the same

the algebraic sum of the piezometric head drops around each elementary circuit is zero

For the laminar flow through a circular pipe

the maximum velocity = 2.5 times the average velocity

the maximum velocity = 1.5 times the average velocity

the maximum velocity = 2.0 times the average velocity

the maximum velocity = 2.5 times the average velocity

Pressure loss for laminar flow through pipeline is dependent

Inversely on viscosity of flowing Medium

Directly on square of pipe radius

Inversely on viscosity of flowing Medium

75 + Mcqs in Laminar Flow in Heat Transfer Page 1 McqOptions

1.	If the laminar flow of the fluid having the viscosity μ is flowing through the pipe of the diameter D. Pressure gradient in the flow is \(\left( { - \frac{{\partial p}}{{\partial x}}} \right)\).What is the average velocity of flow? .
A.	\(V = \frac{1}{{32\mu }}\left( { - \frac{{\partial p}}{{\partial x}}} \right){D^2}\)
B.	\(V = \frac{1}{{8\mu }}\left( { - \frac{{\partial p}}{{\partial x}}} \right){D^2}\)
C.	\(V = \frac{1}{{16\mu }}\left( { - \frac{{\partial p}}{{\partial x}}} \right){D^2}\)
D.	\(V = \frac{1}{{4\mu }}\left( { - \frac{{\partial p}}{{\partial x}}} \right){D^2}\)
Answer» B. \(V = \frac{1}{{8\mu }}\left( { - \frac{{\partial p}}{{\partial x}}} \right){D^2}\)

Discussion

2.	Consider steady laminar incompressible axi-symmetric fully developed viscous flow through a straight circular pipe of constant cross-sectional area at a Reynolds number of 5. The ratio of inertia force to viscous force on a fluid particle is
A.	5
B.	1/5
C.	0
D.	∞
Answer» B. 1/5

Discussion

3.	A centrifugal pump has the following specifications 0.15 m diameter, 100 m long pipe with velocity of water 2.26 m/s. and friction coefficient 0.015. what is the frictional head loss?
A.	10.4
B.	12.6
C.	15.1
D.	13.8
Answer» B. 12.6

Discussion

4.	At the centre line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be ________.
A.	Minimum
B.	Maximum
C.	Zero
D.	Could be any value
Answer» D. Could be any value

Discussion

5.	Maximum velocity in fully developed laminar pipe flow is
A.	Half of average velocity
B.	Two-third of average velocity
C.	Twice of average velocity
D.	Equal to average velocity
Answer» D. Equal to average velocity

Discussion

6.	Laminar flow takes place in a circular tube. At what distance from the boundary does the local velocity equal the average velocity?
A.	0.29R
B.	0.94R
C.	0.32R
D.	0.53R
Answer» B. 0.94R

Discussion

7.	Friction factor for laminar flow in a pipe is given by
A.	Re/64
B.	64/Re
C.	16/Re
D.	Re/24
Answer» C. 16/Re

Discussion

8.	If the Reynold number is less than 2000 for a pipe flow, the flow is said to be:
A.	Uniform flow
B.	Laminar flow
C.	Rotational flow
D.	Turbulent flow
Answer» C. Rotational flow

Discussion

9.	Identify the incorrect option regarding laminar flow in a pipe of diameter D.
A.	Lower fluid velocity promotes laminar flow
B.	Re ≤ 2000
C.	Higher viscosity promotes laminar flow
D.	There is intermingling of fluid particles across the cross-section
Answer» E.

Discussion

10.	Oil (SG = 0.9, Dynamic viscosity = 1 Poise) is flowing with a mean velocity of 1 m/s between two fixed parallel plates which are 1 cm apart. What will be shear stress at the surface of the plate?
A.	40 N/m2
B.	50 N/m2
C.	60 N/m2
D.	70 N/m2
Answer» D. 70 N/m2

Discussion

11.	If the Reynolds number in a pipe is less than ______, then the flow is said to be laminar.
A.	3000
B.	2500
C.	2000
D.	4000
Answer» D. 4000

Discussion

12.	In laminar flow, maximum velocity at the centre of the pipe is how many times the average velocity?
A.	Two
B.	Three
C.	Four
D.	Five
Answer» B. Three

Discussion

13.	In a laminar flow through pipe, the point of maximum instability exists at a distance of y from the wall which is
A.	\(\frac{3}{2}\) of pipe radius R
B.	\(\frac{2}{3}\) of pipe radius R
C.	\(\frac{1}{2}\) of pipe radius R
D.	\(\frac{1}{3}\) of pipe radius R
Answer» C. \(\frac{1}{2}\) of pipe radius R

Discussion

14.	For laminar flow in a pipe of radius 0.9 m, the point of maximum instability would occur at a distance of _______ from the center of pipe cross section.
A.	0.60 m
B.	0.15 m
C.	0.30 m
D.	Cannot say
Answer» D. Cannot say

Discussion

15.	In case of steady incompressible laminar viscous flow between two stationary parallel plates, the velocity distribution is
A.	Linear
B.	Quadratic
C.	Parabolic
D.	Hyperbolic
Answer» D. Hyperbolic

Discussion

16.	For laminar flow between parallel plates separated by a distance of 2h, head loss varies
A.	directly as h
B.	inversely as h
C.	directly as h2
D.	inversely as h2
Answer» E.

Discussion

17.	A fully developed laminar viscous flow through a circular tube has the ratio of maximum velocity to average velocity as
A.	3
B.	2
C.	2.5
D.	1.5
Answer» C. 2.5

Discussion

18.	An oil of viscosity 0.5 N s/m2 and relative density 0.6 is flowing through a circular pipe of diameter 60 cm and of length 500 m. The average velocity of the oil is 2 m/s. Determine the Reynolds number.
A.	1440
B.	1350
C.	1260
D.	1800
Answer» B. 1350

Discussion

19.	A flat plate 0.1 m2 area is pulled at 30 cm/s relative to another plate located at a distance of 0.01 cm from it, the fluid separating them being water with viscosity of 0.001 Ns/m2. The power required to maintain velocity will be
A.	0.05 W
B.	0.07 W
C.	0.09 W
D.	0.11 W
Answer» D. 0.11 W

Discussion

20.	A fluid of viscosity 7 poise and density 1300 kg/m3 is flowing through a circular pipe of diameter 200 mm. The maximum shear stress at the pipe wall is 200 N/m2. What will be the pressure loss mere of pipe length?
A.	400 N/m2
B.	4000 N/m2
C.	6000 N/m2
D.	8000 N/m2
Answer» C. 6000 N/m2

Discussion

21.	In laminar flow through a round tube, the discharge varies _________.
A.	Linearly as the viscosity
B.	Inversely as the pressure drop
C.	As the cube of the diameter
D.	Inversely as the viscosity
Answer» E.

Discussion

22.	A fluid is flowing through a pipe of radius R. For fully developed laminar flow through pipe, shear stress is maximum at (r is measured from midpoint):
A.	at wall surface (r = R)
B.	at r = R/2
C.	at midpoint (r = 0)
D.	at r = R/√2
Answer» B. at r = R/2

Discussion

23.	In case of laminar flow, the loss of pressure head is proportional to
A.	Velocity
B.	Square of velocity
C.	Cube of velocity
D.	Half of velocity
Answer» B. Square of velocity

Discussion

24.	For laminar flow, Kinetic energy correction factor is:
A.	1
B.	1.33
C.	2
D.	2.7
Answer» D. 2.7

Discussion

25.	Laminar flow between closely spaced parallel plates is governed by the consideration of which one of the following pair of forces?
A.	Pressure and inertial forces
B.	Gravity and inertial forces
C.	Viscous and inertial forces
D.	Pressure and viscous forces
Answer» E.

Discussion

26.	For the laminar flow through a circular pipe the ratio of maximum velocity to average velocity is
A.	1.5
B.	2.5
C.	2
D.	1
Answer» D. 1

Discussion

27.	In a laminar flow, _____ can be applied.
A.	Snell’s law
B.	Fresnel law
C.	Newton’s law of viscosity
D.	Grashoff’s law
Answer» D. Grashoff’s law

Discussion

28.	For fully developed laminar pipe flow, the average velocity is
A.	One-half of the maximum velocity
B.	One-third of the maximum velocity
C.	One-fourth of the maximum velocity
D.	Two-third of the maximum velocity
Answer» B. One-third of the maximum velocity

Discussion

29.	A 40 mm diameter 2 m long straight uniform pipe carriers a steady flow of water (viscosity 1.02 centipoise) at the rate of 3.0 litres per minute. What is the approximate value of the shear stress (in dyne/cm2) on the internal wall of the pipe?
A.	0.0166
B.	0.0812
C.	8.12
D.	0.9932
Answer» C. 8.12

Discussion

30.	Consider a laminar flow at zero incidence over a flat plate. The shear stress at the wall is denoted by τw. The axial positions x1 and x2 on the plate are measured from the leading edge in the direction of flow. If x2 > x1, then
A.	\({\tau _w}{\|_{{x_1}}} = {\tau _w}{\|_{{x_2}}} = 0\)
B.	\({\tau _w}{\|_{{x_1}}} = {\tau _w}{\|_{{x_2}}} \ne 0\)
C.	\({\tau _w}{\|_{{x_1}}} > {\tau _w}{\|_{{x_2}}}\)
D.	\({\tau _w}{\|_{{x_1}}} < {\tau _w}{\|_{{x_2}}}\)
Answer» D. \({\tau _w}{\|_{{x_1}}} < {\tau _w}{\|_{{x_2}}}\)

Discussion

31.	Air is flowing over a flat plate with a free steam velocity of 24 m/s, and its kinematic viscosity is 72 × 10-6 m2/s, If at a particular point, the Reynolds number is 30000, its location from the leading edge is
A.	0.05 m
B.	0.07m
C.	0.08m
D.	0.09 m
Answer» E.

Discussion

32.	An oil of viscosity 0.5 N s/m2 and relative density 0.6 is flowing through a circular pipe of diameter 40 cm and of length 500 m. The average velocity of the oil is 2 m/s. Determine the pressure drop in a length of 500 m.
A.	200 kN/m2
B.	100 kN/m2
C.	250 kN/m2
D.	150 kN/m2
Answer» C. 250 kN/m2

Discussion

33.	For steady flow of a viscous incompressible fluid through a circular pipe of constant diameter, the average velocity in the fully developed region is constant. Which one of the following statements about the average velocity in the developing region is TRUE?
A.	It increases until the flow is fully developed
B.	It is constant and is equal to the average velocity in the fully developed region
C.	It decreases until the flow is fully developed
D.	It is constant but is always lower than the average velocity in the fully developed region.
Answer» C. It decreases until the flow is fully developed

Discussion

34.	For laminar flow through a long pipe, the pressure drop per unit length is
A.	In direct proportion to the cross-sectional area
B.	In proportion to the diameter of the pipe
C.	In inverse proportion to the square of the cross-sectional area
D.	In inverse proportion to cross-sectional area
Answer» E.

Discussion

35.	Consider flow of an oil with Reynolds number 1500 in a pipe of diameter 5 cm, The kinematic viscosity of the oil, v = 0.75 cm2/s. The value of average velocity in m/s is
A.	0.75
B.	1.5
C.	2.25
D.	4.5
Answer» D. 4.5

Discussion

36.	For steady, fully developed flow inside a straight pipe of diameter D, neglecting gravity effects, the pressure drop Δp over a length L and the wall shear stress τw are related by
A.	\({\tau _w} = \frac{{{\rm{\Delta }}pD}}{{4L}}\)
B.	\({\tau _w} = \frac{\Delta p{D^2}}{4{L^2}}\)
C.	\({\tau _w} = \frac{{{\rm{\Delta }}pD}}{{2L}}\)
D.	\({\tau _w} = \frac{{4{\rm{\Delta }}pL}}{D}\)
Answer» B. \({\tau _w} = \frac{\Delta p{D^2}}{4{L^2}}\)

Discussion

37.	Hydraulic gradient line (HGL) represents the sum of
A.	Pressure head and kinetic head
B.	Kinetic head and datum head
C.	Pressure head, kinetic head & datum head
D.	Pressure head and datum head
Answer» E.

Discussion

38.	In a circular tube of diameter 100 mm and length 13 m with laminar flow, the friction factor is estimated to be 0.05. Calculate the Reynolds number?
A.	950
B.	2300
C.	1280
D.	None of the above
Answer» D. None of the above

Discussion

39.	Laminar flow is also called a/an:
A.	adiabatic flow
B.	ideal flow
C.	steady flow
D.	stream line flow
Answer» E.

Discussion

40.	For a steady incompressible laminar flow between two infinite parallel stationary plates, the shear stress variation is
A.	linear with zero value at the plates
B.	linear with zero value at the center
C.	quadratic with zero value at the plates
D.	quadratic with zero value at the center
Answer» C. quadratic with zero value at the plates

Discussion

41.	Couette flow is characterized by
A.	steady, incompressible, laminar flow through a straight circular pipe
B.	fully developed turbulent flow through a straight circular pipe
C.	steady, incompressible, laminar flow between two fixed parallel plates
D.	steady, incompressible, laminar flow between one fixed plate and the other moving with a constant velocity
Answer» E.

Discussion

42.	In a pipe network,
A.	the algebraic sum of discharges around each elementary circuit must be zero.
B.	the head at each node be the same.
C.	the piezometric head loss in each line of the circuit is the same
D.	the algebraic sum of the piezometric head drops around each elementary circuit is zero
Answer» E.

Discussion

43.	For a laminar flow through a channel, Reynolds number is given by 1500. What is the friction factor?
A.	0.1
B.	0.043
C.	0.086
D.	0.0054
Answer» C. 0.086

Discussion

44.	If one of the walls moves in the direction of flow with uniform velocity while the other wall is stationary, then the resulting flow between parallel walls is called ______.
A.	Plug flow
B.	Stoke's flow
C.	Couette flow
D.	Euler's flow
Answer» D. Euler's flow

Discussion

45.	For the laminar flow through a circular pipe
A.	the maximum velocity = 1.5 times the average velocity
B.	the maximum velocity = 2.0 times the average velocity
C.	the maximum velocity = 2.5 times the average velocity
D.	none of the above
Answer» C. the maximum velocity = 2.5 times the average velocity

Discussion

46.	Pressure loss for laminar flow through pipeline is dependent
A.	Inversely on flow of velocity
B.	Directly on square of pipe radius
C.	Directly on length of pipe
D.	Inversely on viscosity of flowing Medium
Answer» D. Inversely on viscosity of flowing Medium

Discussion

47.	For laminar flow through the circular pipe, The maximum velocity is equal to:
A.	1.5 times the average velocity
B.	2.0 times the average velocity
C.	2.5 times the average velocity
D.	None of the above
Answer» C. 2.5 times the average velocity

Discussion

48.	Laminar flow occurs in pipe, when Reynolds number
A.	Lies between 2000-3000
B.	Lies between 3000-4000
C.	Is more than 2000
D.	Is less than 2000
Answer» E.

Discussion

49.	Large Reynolds number is an indication of
A.	Streamline flow
B.	Steady flow
C.	Laminar flow
D.	Highly turbulent flow
Answer» E.

Discussion

50.	Consider fully developed laminar flow in a circular pipe of a fixed length:1) The friction factor is inversely proportional to Reynolds number2) The pressure drop in the pipe is proportional to the average velocity of the flow in the pipe3) The friction factor is higher for a rough pipe as compared to a smooth pipe4) The pressure drop in the pipe is proportional to the square of average of flow in the pipe.Which of the above statements are correct?
A.	1 and 4
B.	3 and 4
C.	2 and 3
D.	1 and 2
Answer» E.

Discussion

Explore topic-wise MCQs in Heat Transfer.

If the laminar flow of the fluid having the viscosity μ is flowing through the pipe of the diameter D. Pressure gradient in the flow is \(\left( { - \frac{{\partial p}}{{\partial x}}} \right)\).What is the average velocity of flow? .

Consider steady laminar incompressible axi-symmetric fully developed viscous flow through a straight circular pipe of constant cross-sectional area at a Reynolds number of 5. The ratio of inertia force to viscous force on a fluid particle is

A centrifugal pump has the following specifications 0.15 m diameter, 100 m long pipe with velocity of water 2.26 m/s. and friction coefficient 0.015. what is the frictional head loss?

At the centre line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be ________.

Maximum velocity in fully developed laminar pipe flow is

Laminar flow takes place in a circular tube. At what distance from the boundary does the local velocity equal the average velocity?

Friction factor for laminar flow in a pipe is given by

If the Reynold number is less than 2000 for a pipe flow, the flow is said to be:

Identify the incorrect option regarding laminar flow in a pipe of diameter D.

Oil (SG = 0.9, Dynamic viscosity = 1 Poise) is flowing with a mean velocity of 1 m/s between two fixed parallel plates which are 1 cm apart. What will be shear stress at the surface of the plate?

If the Reynolds number in a pipe is less than ______, then the flow is said to be laminar.

In laminar flow, maximum velocity at the centre of the pipe is how many times the average velocity?

In a laminar flow through pipe, the point of maximum instability exists at a distance of y from the wall which is

For laminar flow in a pipe of radius 0.9 m, the point of maximum instability would occur at a distance of _______ from the center of pipe cross section.

In case of steady incompressible laminar viscous flow between two stationary parallel plates, the velocity distribution is

For laminar flow between parallel plates separated by a distance of 2h, head loss varies

A fully developed laminar viscous flow through a circular tube has the ratio of maximum velocity to average velocity as

An oil of viscosity 0.5 N s/m2 and relative density 0.6 is flowing through a circular pipe of diameter 60 cm and of length 500 m. The average velocity of the oil is 2 m/s. Determine the Reynolds number.

A flat plate 0.1 m2 area is pulled at 30 cm/s relative to another plate located at a distance of 0.01 cm from it, the fluid separating them being water with viscosity of 0.001 Ns/m2. The power required to maintain velocity will be

A fluid of viscosity 7 poise and density 1300 kg/m3 is flowing through a circular pipe of diameter 200 mm. The maximum shear stress at the pipe wall is 200 N/m2. What will be the pressure loss mere of pipe length?

In laminar flow through a round tube, the discharge varies _________.

A fluid is flowing through a pipe of radius R. For fully developed laminar flow through pipe, shear stress is maximum at (r is measured from midpoint):

In case of laminar flow, the loss of pressure head is proportional to

For laminar flow, Kinetic energy correction factor is:

Laminar flow between closely spaced parallel plates is governed by the consideration of which one of the following pair of forces?

For the laminar flow through a circular pipe the ratio of maximum velocity to average velocity is

In a laminar flow, _____ can be applied.

For fully developed laminar pipe flow, the average velocity is

A 40 mm diameter 2 m long straight uniform pipe carriers a steady flow of water (viscosity 1.02 centipoise) at the rate of 3.0 litres per minute. What is the approximate value of the shear stress (in dyne/cm2) on the internal wall of the pipe?

Consider a laminar flow at zero incidence over a flat plate. The shear stress at the wall is denoted by τw. The axial positions x1 and x2 on the plate are measured from the leading edge in the direction of flow. If x2 > x1, then

Air is flowing over a flat plate with a free steam velocity of 24 m/s, and its kinematic viscosity is 72 × 10-6 m2/s, If at a particular point, the Reynolds number is 30000, its location from the leading edge is

An oil of viscosity 0.5 N s/m2 and relative density 0.6 is flowing through a circular pipe of diameter 40 cm and of length 500 m. The average velocity of the oil is 2 m/s. Determine the pressure drop in a length of 500 m.

For steady flow of a viscous incompressible fluid through a circular pipe of constant diameter, the average velocity in the fully developed region is constant. Which one of the following statements about the average velocity in the developing region is TRUE?

For laminar flow through a long pipe, the pressure drop per unit length is

Consider flow of an oil with Reynolds number 1500 in a pipe of diameter 5 cm, The kinematic viscosity of the oil, v = 0.75 cm2/s. The value of average velocity in m/s is

For steady, fully developed flow inside a straight pipe of diameter D, neglecting gravity effects, the pressure drop Δp over a length L and the wall shear stress τw are related by

Hydraulic gradient line (HGL) represents the sum of

In a circular tube of diameter 100 mm and length 13 m with laminar flow, the friction factor is estimated to be 0.05. Calculate the Reynolds number?

Laminar flow is also called a/an:

For a steady incompressible laminar flow between two infinite parallel stationary plates, the shear stress variation is

Couette flow is characterized by

In a pipe network,

For a laminar flow through a channel, Reynolds number is given by 1500. What is the friction factor?

If one of the walls moves in the direction of flow with uniform velocity while the other wall is stationary, then the resulting flow between parallel walls is called ______.

For the laminar flow through a circular pipe

Pressure loss for laminar flow through pipeline is dependent

For laminar flow through the circular pipe, The maximum velocity is equal to:

Laminar flow occurs in pipe, when Reynolds number

Large Reynolds number is an indication of