For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is_______________?

Byadmin January 17, 2019August 12, 2021

For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is_______________?

A. constant
B. dependent only on Reynolds number
C. a function of Reynolds number and relative roughness
D. dependent on relative roughness only

Fluid Mechanics

When time of closure tc = L/v0 (where L is length of pipe and v0 is speed of pressure wavE., the portion of pipe length subjected to maximum head is__________________?

When time of closure tc = L/v0 (where L is length of pipe and v0 is speed of pressure wavE., the portion of pipe length subjected to maximum head is__________________?

A. L/4
B. L/3
C. L/2
D. L

Read More When time of closure tc = L/v0 (where L is length of pipe and v0 is speed of pressure wavE., the portion of pipe length subjected to maximum head is__________________?
Fluid Mechanics

Newton’s law of viscosity is a relationship between____________________?

Newton’s law of viscosity is a relationship between____________________?

A. shear stress anctthejiate of angular distortion
B. shear stress and viscosity
C. shear stress, velocity and viscosity
D. pressure, velocity and viscosity
E. shear stress, pressure and rate of angular distortion

Read More Newton’s law of viscosity is a relationship between____________________?
CHEMICAL ENGINEERING | Fluid Mechanics

Liquid delivery by centrifugal pump starts, only when the head developed by it is equal to the __________ head.

Question: Liquid delivery by centrifugal pump starts, only when the head developed by it is equal to the __________ head.
[A].

manometric
[B].
total
[C].
static
[D].
friction

Answer: Option A

Explanation:

No answer description available for this question.

Read More Liquid delivery by centrifugal pump starts, only when the head developed by it is equal to the __________ head.
CHEMICAL ENGINEERING | Fluid Mechanics

Air vessel fitted to a reciprocating pump

Question: Air vessel fitted to a reciprocating pump
[A].

increases the work done.
[B].
decreases the work done.
[C].
causes cavitation.
[D].
results in non-uniform discharge.

Answer: Option B

Explanation:

No answer description available for this question.

Read More Air vessel fitted to a reciprocating pump
Fluid Mechanics

Capillary action is due to the_________________?

Capillary action is due to the_________________?

A. surface tension
B. cohesion of the liquid
C. adhesion of the liquid molecules and the molecules on the surface of a solid
D. all of the above
E. none of the above

Read More Capillary action is due to the_________________?
Fluid Mechanics

Surface tension__________________?

Surface tension__________________?

A. acts in the plane of the interface normal to any line in the surface
B. is also known as capillarity
C. is a function of the curvature of the interface
D. decreases with fall in temperature
E. has no units

Read More Surface tension__________________?

Similar Posts