Fluid Mechanics

In steady flow of a fluid, the total accele ration of any fluid particle______________?

Byadmin January 17, 2019August 12, 2021

In steady flow of a fluid, the total accele ration of any fluid particle______________?

A. can be zero
B. is never zero
C. is always zero
D. is independent of coordinates

Fluid Mechanics

Froude number is significant in__________________?

Froude number is significant in__________________?

A. supersonics, as with projectile and jet propulsion
B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
D. all of the above
E. none of the above

Read More Froude number is significant in__________________?
CHEMICAL ENGINEERING | Fluid Mechanics

Laminar flow is characterised by the nonexistence of

Question: Laminar flow is characterised by the nonexistence of
[A].

pressure fluctuation.
[B].
eddies.
[C].
deviating velocities.
[D].
all (a), (b)&(c).

Answer: Option D

Explanation:

No answer description available for this question.

Read More Laminar flow is characterised by the nonexistence of
CHEMICAL ENGINEERING | Fluid Mechanics

In turbulent flow, a rough pipe has the same friction factor as a smooth pipe

Question: In turbulent flow, a rough pipe has the same friction factor as a smooth pipe
[A].

in the zone of complete turbulence.
[B].
when the roughness projections are much smaller than the thickness of the laminar film.
[C].
everywhere in the transition zone.
[D].
when the friction factor is independent of the Reynold’s number.

Answer: Option B

Explanation:

No answer description available for this question.

Read More In turbulent flow, a rough pipe has the same friction factor as a smooth pipe
CHEMICAL ENGINEERING | Fluid Mechanics

In centrifugal pumps, cavitation occurs, when pressure of the impeller eye or vane becomes

Question: In centrifugal pumps, cavitation occurs, when pressure of the impeller eye or vane becomes
[A].

less than atmospheric pressure.
[B].
more than liquid vapor pressure.
[C].
less than liquid vapor pressure.
[D].
more than atmospheric pressure.

Answer: Option C

Explanation:

No answer description available for this question.

Read More In centrifugal pumps, cavitation occurs, when pressure of the impeller eye or vane becomes
Fluid Mechanics

For measuring flow by a venturimeter, if should be installed in __________________?

For measuring flow by a venturimeter, if should be installed in __________________?

A. vertical line
B. horizontal line
C. inclined line with flow downward
D. inclined line with upward flow
E. in any direction and in any location

Read More For measuring flow by a venturimeter, if should be installed in __________________?
CHEMICAL ENGINEERING | Fluid Mechanics

Drag co-efficient for flow past immersed body is the ratio of __________ to the product of velocity head and density.

Question: Drag co-efficient for flow past immersed body is the ratio of __________ to the product of velocity head and density.
[A].

shear stress
[B].
shear force
[C].
average drag per unit projected area
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More Drag co-efficient for flow past immersed body is the ratio of __________ to the product of velocity head and density.

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