The maximum thickness of boundary layer in a pipe of radius r is____________________?
The maximum thickness of boundary layer in a pipe of radius r is____________________?
A. 0
B. r/2
C. r
D. 2r
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The equation of continuity holds good when the flow____________________?
The equation of continuity holds good when the flow____________________?A. is steady
B. is one dimensional
C. velocity is uniform at all the cross sections
D. all of the above
E. none of the aboveBaffles in mixing tanks are provided to
Question: Baffles in mixing tanks are provided to
[A].reduce swirling and vortex formation. [B].
increase the structural strength of the tank. [C].
aid in rotational flow. [D].
none of these Answer: Option A
Explanation:
No answer description available for this question.
The property of fluid by virtue of which it offers resistance to shear is called________________?
The property of fluid by virtue of which it offers resistance to shear is called________________?A. surface tension
B. adhesion
C. cohesion
D. viscosity
E. all of the aboveDrag co-efficient for motion of spherical particles in a stationary fluid in the stoke’s law range is
Question: Drag co-efficient for motion of spherical particles in a stationary fluid in the stoke’s law range is
[A].[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Net positive suction head (NPSH) of a centrifugal pump must be
Question: Net positive suction head (NPSH) of a centrifugal pump must be
[A].greater than the vapour pressure of the liquid. [B].
less than the vapour pressure of the liquid. [C].
equal to the vapour pressure of the liquid. [D].
less than barometric pressure. Answer: Option A
Explanation:
No answer description available for this question.
Cavitation in a centrifugal pump can be avoided by keeping the
Question: Cavitation in a centrifugal pump can be avoided by keeping the
[A].inlet pressure high [B].
outlet pressure low [C].
inlet pressure low [D].
outlet pressure high Answer: Option A
Explanation:
No answer description available for this question.